Peter Ott
peter.ott@epfl.ch +41 21 693 35 25
EPFL SCI-STI-PO
ME A2 434 (Bâtiment ME)
Station 9
CH-1015 Lausanne
+41 21 693 35 25
+41 21 693 35 45
Office: ME A2 434
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Web site: Web site: https://gtt.epfl.ch/
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Fields of expertise
Experimental and numerical investigation of steady and unsteady flow in turbomachinery, including heat transfer phenomena.
Mission
The work conducted by the group is focused on the computation and experimental investigation of steady and unsteady flow in turbomachinery (aeroengines, steam and gas turbines), including heat transfer phenomena. This research is conducted in close association with our industrial and academic partners with the primary goal of improving the overall performance and reliability of turbomachinery.The research subjects at the LTT are closely related to real applications and are addressed through a direct collaboration with industry. With the increasing need of cost-efficient, powerful and flexible turbomachines, the investigation of turbomachinery flow has become critical to improving their design.Publications
Infoscience publications
Accuracy Improvement of the Transient Heater Foil Technique for Heat Transfer Tests: Preliminary Results
2020-09-21. XXV Biannual Symposium on Measuring Techniques in Turbomachinery, Santorini, GR, September 21-23, 2020.Mechanisms of Control Authority by Nanosecond Pulsed Dielectric Barrier Discharge Actuators on Flow Separation
Applied Sciences. 2019. DOI : 10.3390/app9152989.Narrow Impingement Channels: Recent Advancements and Future Directions
2019. ETC13 - European Turbomachinery Conference, Lausanne, CH, April 8-12, 2019.Measurement of the single top quark and antiquark production cross sections in the $t$ channel and their ratio in proton-proton collisions at $\sqrt{s}=$ 13 TeV
2018-12-26Evaluation of Heat Transfer Coefficients for an Impingement Cooling Cascade: Experimental Challenges and Preliminary Results
2018. XXIV Biannual Symposium on Measuring Techniques in Turbomachinery, Prague, CZE, August 29-31, 2018.Ammonia toxicity: from head to toe?
Metabolic Brain Disease. 2017. DOI : 10.1007/s11011-016-9938-3.OES Characterization of Steamers in a Nanosecond Pulsed SBDB Using N2 and Ar Transitions
Plasma Soucre Science and Technology. 2016. DOI : 10.1088/0963-0252/25/4/045002.Aerothermal Investigation of a Single Row Divergent Narrow Impingement Channel by Particle Image Velocimetry and Liquid Crystal Thermography
Transactions- American Society of Mechanical Engineers Journal of Turbomachinery. 2016. DOI : 10.1115/1.4032328.Investigation of Nanosecond Pulse Dielectric Barrier Discharges in Still Air and in Transonic Flow by Optical Methods
IOP Journal of Physics D: Applied Physics. 2016. DOI : 10.1088/0022-3727/49/2/025204.Improved Accuracy in Jet Impingement Heat Transfer Experiments Considering the Layer Thicknesses of a Triple Thermochromic Liquid Crystal Coating
Transactions- American Society of Mechanical Engineers Journal of Turbomachinery. 2016. DOI : 10.1115/1.4031786.On the Effects of Coating Thickness in Transient Heat Transfer Experiments Using Thermochromic Liquid Crystals
Experimental Thermal and Fluid Science. 2016. DOI : 10.1016/j.expthermflusci.2015.08.011.High-Resolution Heat Transfer Measurements and Crossflow Regulation in Narrow Impingement Cooling Channels with Divergent Geometries
2015. 11th International Gas Turbine Congress, Tokyo, JP, November 15-20, 2015.Impact of ns-DBD Plasma Actuation on the Boundary Layer Transition Using Convective Heat Transfer Measurements
IOP Journal of Physics D: Applied Physics. 2015. DOI : 10.1088/0022-3727/48/36/365203.Investigation of Flow Separation Control by Nanosecond Pulsed Dielectric Barrier Discharge Actuators
Progress in Flight Physics; Moscow: EUCASS, Torus Press, 2015. p. 191-210.Heat Transfer Characteristics of High Crossflow Impingement Channels: Effect of Number of Holes
Proceedings of IMechE, Part A: Journal of Power and Energy. 2015. DOI : 10.1177/0957650915594074.Aeroeleasic Investigation of an Annular Transonic Compressor Cascade: Experimental Results
2015. ASME Turbo Expo 2015, Montreal, CA, June 15-19, 2015.Turbulent scale resolving modelling of rotating stall in low-pressure steam turbines operated under low volume flow conditions
2015. ASME Turbo Expo 2015, Montreal, CA, June 15-19, 2015.On the Applicability of a Triple Thermochromic Liquid Crystal Layer for Transient Heat Transfer Experiments
2015. 1st Thermal and Fluids Engineering Summer Conference (TFESC-1), New York City, USA, August 9-12, 2015.Heat Transfer Characteristics of High Crossflow Impingement Channels: Effect of Number of Holes
2015. 11th European Turbomachinery Conference, Madrid, SP, March 23-27, 2015. p. 1-10.A method to visualise near wall fluid flow patterns using locally resolved convective heat transfer experiments
Experimental Thermal and Fluid Science. 2015. DOI : 10.1016/j.expthermflusci.2014.09.009.Effect of Varying Jet Diameter on the Heat Transfer Distributions of Narrow Impingement Channels
Journal of Turbomachinery. 2015. DOI : 10.1115/1.4028294.Fluid Flow Pattern Visualisation: An Alternative Approach Using Highly Resolved Heat Transfer Experiments
2014. XXII Symposium on Measuring Techniques in Turbomachinery, Lyon, F, September 4-5, 2014.EPFL-GTT: Group of Thermal Turbomachinery
ERCOFTAC Bulletin. 2014.Plasma Diagnostics and Modelling of Nanosecond Pulsed Surface Dielectric Barrier Discharge Actuators
Lausanne, EPFL, 2014. DOI : 10.5075/epfl-thesis-6282.Experimental Investigation of Pulsed DBD Plasma Actuators for Aerodynamic Flow Control
Lausanne, EPFL, 2014. DOI : 10.5075/epfl-thesis-6265.Experimental Investigation of Blade Group Vibrations in an Axial Turbine Cascade
Lausanne, EPFL, 2014. DOI : 10.5075/epfl-thesis-6194.Detailed Heat Transfer Distributions of Narrow Impingement Channels with Varying Jet Diameter
2014. GT-2014: ASME Turbo Expo 2014, Düsseldorf, D, June 16-20, 2014. p. 1-11.Experimental and Numerical Assessment of the Aeroelastic Stability of Blade Pair Packages
2014. GT-2014: ASME Turbo Expo 2014, Düsseldorf, D, June 16-20, 2014. p. 1-12.Detailed Heat Transfer Distributions of Narrow Impingement Channels for Cast-In Turbine Airfoils
Transactions- American Society of Mechanical Engineers Journal of Turbomachinery. 2014. DOI : 10.1115/1.4027679.Detailed heat transfer distributions of narrow impingement channels for integrally cast turbine airfoils
Lausanne, EPFL, 2014. DOI : 10.5075/epfl-thesis-6177.Unsteady aerodynamics of low-pressure steam turbines operating under low volume flow conditions
Lausanne, EPFL, 2014. DOI : 10.5075/epfl-thesis-6096.Unsteady Aerodynamics of Low-Pressure Steam Turbines Operating Under Low Volume Flow
Transactions- American Society of Mechanical Engineers Journal of Turbomachinery. 2014. DOI : 10.1115/1.4027373.Hole Staggering Effect on the Cooling Performance of Narrow Impingement Channels Using the Transient Liquid Crystal Technique
Transactions- American Society of Mechanical Engineers Journal of Heat Transfer. 2014. DOI : 10.1115/1.4027250.A Comparative Study of the Local Heat Transfer Distributions Around Various Surface Mounted Obstacles
Journal of Thermal Science. 2014. DOI : 10.1007/s11630-014-0692-8.Numerical and Experimental Investigations of an Annular Transonic Compressor Cascade Considering Leakage Flows
2014. 15th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery (ISROMAC-15), Honolulu, USA, February 24-28, 2014.Local Heat Transfer Distributions of Small Impingement Configurations: A Detailed Experimental Procedure Using Transient Heat Transfer Methods
2014. 15th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery (ISROMAC-15), Honolulu, USA, February 24 - 28, 2014.Experimental and numerical investigation of narrow impingement cooling channels
International Journal Of Heat And Mass Transfer. 2013. DOI : 10.1016/j.ijheatmasstransfer.2013.09.003.Experimental Aeroelastic Investigation of Vibrating Turbine Blade Clusters
18th Blade Mechanics Seminar, Winterthur, CH, September 11, 2013.Unsteady Aerodynamics of Low-Pressure Steam Turbines Operating Under Low Volume Flow
ANSYS Conference & 18th Swiss CADFEM Users‘ Meeting, Zurich, CH, September 05-06, 2013.Experimental and Numerical Investigation of a Fully Confined Impingement Round Jet
International Journal of Heat and Mass Transfer. 2013. DOI : 10.1016/j.ijheatmasstransfer.2013.06.043.Investigation of Flow Separation Control by Nanosecond Pulsed Dielectric Barrier Discharge Actuators
2013. EUCCAS 2013 – 5th European Conference for Aeronautics and Space Sciences, Munich, Germany, July 1-5, 2013.Experimental Investigation of Pulsed Dielectric Barrier Discharge Actuators in Sub- and Transonic Flow
2013. 44th AIAA Plasmadynamics and Lasers Conference, San Diego, CA, USA, June 24-27, 2013. DOI : 10.2514/6.2013-2885.Experimental Aeroelastic Analysis of Clustered Turbine Blades Vibrating in Mixed Torsion/Bending Mode
2013. 31st AIAA Applied Aerodynamics Conference, San Diego, CA, USA, June 24-27, 2013. DOI : 10.2514/6.2013-3152.Unsteady Aerodynamics of Low-Pressure Steam Turbines Operating Under Low Volume Flow
2013. ASME Turbo Expo 2013, San Antonio, Texas, USA, June 3-7, 2013.Evolution of the Aerodynamic Stability of an Oscillating Annular Compressor Cascade with Inlet Reverse Flow Condition Variations
2013. ETC10 - 10th European Conference on Turbomachinery, Lappeenranta, FI, April 14-19, 2013. p. 907-916.Experimental Aeroelastic Investigation of Vibrating Turbine Blade Clusters
2013. ETC10 - 10th European Conference on Turbomachinery, Lappeenranta, FI, April 14-19, 2013. p. 210-221.High Voltage Pulsed DBD Effects on the Aerodynamic Performances and on the Shock Buffet
ERCOFTAC Bulletin. 2013.Numerical and Experimental Investigation of the Aerodynamic Excitation of a Model Low-Pressure Steam Turbine Stage Operating Under Low Volume Flow
Journal of Engineering for Gas Turbines and Power. 2013. DOI : 10.1115/1.4007334.High Voltage Pulsed DBD Effects on the Aerodynamic Performances and on the Shock Buffet
Joint ERCOFTAC/PLASMAERO Public Workshop, Toulouse; F, December 10-12, 2012.Thermocouple Thermal Inertia Effects on Impingement Heat Transfer Experiments Using the Transient Liquid Crystal Technique
Measurement Science and Technology. 2012. DOI : 10.1088/0957-0233/23/11/115303.Characterization of Kinetic Processes in Nano Pulsed SDBD
2012. NEPCAP 2012 - 5th International Symposium on "Non-Equilibrium Processes, Plasma, Combustion, and Atmospheric Phenomena", Sochi (Loo), RU, October 1-6, 2012.Experimental Investigations of an Oscillating Annular Compressor Cascade at Reverse Flow Conditions
2012. ISUAAAT13 - 13th International Symposium on Unsteady Aerodynamics, Aeroacoustics and Aeroelasticity of Turbomachines, Tokyo, JP, September 11-14, 2012.Aerodynamic Excitation of a Model Low-Pressure Steam Turbine Stage Under Low Volume Flow
17th Blade Mechanics Seminar, Winterthur, CH, September 12, 2012.Investigation of High-Pressure Turbine Endwall Film-Cooling Performance Under Realistic Inlet Conditions
AIAA Journal of Propulsion and Power. 2012. DOI : 10.2514/1.59225.Hole Staggering Effect on the Cooling Performance of Narrow Impingement Channels
2012. ASME Turbo Expo 2012 (GT2012), Copenhagen, DK, June 11-15, 2012.Numerical and Experimental Investigation of the Aerodynamic Excitation of a Model Low-Pressure Steam Turbine Stage Operating Under Low Volume Flow
2012. ASME Turbo Expo 2012 (GT2012), Copenhagen, DK, June 11-15, 2012.Swirl Jets in Crossflow at Low Velocity Ratios
Journal of Mechanics Engineering and Automation. 2012.Experimental Investigation of the Aeroelastic Stability of an Annular Compressor Cascade at Reverse Flow Conditions
Lausanne, EPFL, 2012. DOI : 10.5075/epfl-thesis-5358.Heat Transfer and Performance Characteristics of Axial Cooling Fans with Downstream Guide Vanes
Journal of Thermal Science. 2012. DOI : 10.1007/s11630-012-0531-8.Influence of Thermocouple Thermal Inertia in Impingement Heat Transfer Experiments Using Transient Techniques
2012. XXI Biannual Symposium on Measuring Techniques in Turbomachinery, Valencia, E, March 22-23, 2012.Investigation of High Pressure Turbine End-Wall Film Cooling Performances under Realistic Inlet Conditions
2011. XX International Symposium on Air Breathing Engines (ISABE), Gothenburg, S, September 12-16, 2011.Investigation on the Three-Dimensional Flow Mechanisms in Annular Axial Compressor Cascades for Aero Engines with Flow Control by Aspiration on the Hub and on the Blades
Lausanne, EPFL, 2011. DOI : 10.5075/epfl-thesis-5241.Effect of Stators on the Performance and the Thermal Capabilities of Small Axial Cooling Fans
2011. 10th International Symposium on Experimental and Computational Aerothermodynamics of Internal Flows (ISAIF-10), Brussels, Belgium, 4-7 July, 2011.Interaction Between Nanosecond Pulse DBD Actuators and Transonic Flow
2011. 41st AIAA Fluid Dynamics Conference and Exhibit, Honolulu, HI, USA, June 27-40, 2011.Aeroelasticity at Reversed Flow Conditions – Part 1: Numerical and Experimental Investigations of a Compressor Cascade with Controlled Vibration
2011. ASME Turbo Expo 2011, Power for Land, Sea & Air, Vancouver, CAN, June 6-10, 2011.Electron temperature measurements using N2 and Argon transitions in an ATP fast pulsed DBD
2011 Aerospace Thematic Workshop at Les Houches (Fundamentals of Aerodynamic Flow and Combustion Control by Plasmas), Les Houches, France, March 27 - April 01, 2011.Experimental Investigations of the Aerodynamics of an Annular Compressor Cascade at Reversed Flow Conditions
2011. 9th European Conference on Turbomachinery, Istanbul, Turkey, March 21-25, 2011. p. 249-259.Swirl Jet and Crossflow Interaction at Low Velocity Ratios and Incompressible Flows
2011. 9th European Conference on Turbomachinery, Istanbul, Turkey, March 21-25, 2011. p. 133-144.Influence of Blade Aspiration on the Flow Quality of an Annular Axial Compressor Cascade
2011. 9th European Conference on Turbomachinery, Istanbul, Turkey, March 21-25, 2011. p. 1345-1356.Characterization of the Flow Generated in an Annular Test Facility
2011. 9th European Conference on Turbomachinery, Istanbul, Turkey, March 21-25, 2011. p. 1413-1424.Investigation of End-Wall Film Cooling Configuration Performances in a Linear Cascade
2010. 65° Congresso Nazionale ATI, Cagliari, Italy, September 13-17, 2010.Aero Engine Flow Control by Surface Discharge Plasma
2010. III International Scientific and Technical Conference - Aeroengines of XXI Century, Moscow, RU, November 30 - December 3, 2010.Heat Transfer Measurements in a Turbine Cascade: Taking Advantage of the Thermal Bahaviour of a PSP Sensor
2010. XX Biannual Symposium on Measuring Techniques in Turbomachinery, Transonic and Supersonic Flow in Cascades and Turbomachines, Milano, Italy, September 23-24, 2010.Surface DBD’s and plasma-flow interaction
2010. Euromech Fluid Mechanics Conference - 8, Bad Reichenhall, D, September 13-16, 2010.Investigations on Axial Compressor Cascades with Aspiration on Blades and Hub
European Workshop on New Aero Engine Concepts, Munich, Germany, June 30-July 1, 2010.Application of Photoluminescent Measurement Techniques for Quantitative Assessment of Turbine Film Cooling
Lausanne, EPFL, 2010. DOI : 10.5075/epfl-thesis-4650.EPFL-LTT: Turbomachinery Laboratory
ERCOFTAC Bulletin. 2009.Experimental and Numerical Study of the Thermal Performance of a Film Cooled Turbine Platform
2009. ASME Turbo Expo 2009, Orlando, Fl, USA, June 8-12, 2009. p. 1027-1038.Effects of a surface dielectric barrier discharge on transonic flows around an airfoil
2009. 47th AIAA Aerospace Sciences Meeting, Orlando, Florida, USA, January 05-08, 2009.Interaction between a surface dielectric barrier discharge and transonic airflows
Lausanne, EPFL, 2008. DOI : 10.5075/epfl-thesis-4201.Comparison of Numerical Investigations With Measured Heat Transfer Performance of a Film Cooled Turbine Vane
2008. 53rd ASME Turbo Expo 2008, Berlin, Germany, June 9-13, 2008. p. 571-582.Application of the Transient Heater Foil Technique for Heat Transfer and Film Cooling Effectiveness Measurements on a Turbine Vane Endwall
2008. 53rd ASME Turbo Expo 2008, Berlin, Germany, June 9-13, 2008. p. 443-453.Application of the Transient Heater Foil Technique for Heat Transfer Measurements
2008. XIX Biannual Symposium on Measuring Techniques in Turbomachinery, VKI, Rhode-St-Genèse, Belgium, April 7-8, 2008.Numerical Analysis of Adiabatic Film Cooling Effectiveness Around HP-Turbine Airfoil – Decomposed Computation of Internal-External Airflows
2008. ISROMAC-12, Honolulu, Hawaii, USA, 17-22 February, 2008.LONG LIFETIME SYSTEM FOR THE GENERATION OF SURFACE PLASMAS
WO2009098662 . 2007.Leading Edge Film Cooling and the Influence of Fan Shaped Holes at Design and Off-Design Conditions
2007. ASME Turbo Expo 2007, Montreal, Canada, May 14-17, 2007.Effects of high-speed airflows on a surface dielectric barrier discharge
Journal of Physics D : Applied Physics. 2007. DOI : 10.1088/0022-3727/40/6/021.Heat Transfer Experiments on an Heavily Film Cooled Nozzle Guide Vane
2007. 7th European Turbomachinery Conference - ETC7, Athens, Greece, 5-9 March 2007. p. 1011-1020.Analysis of the Cooling Performance on a Showerhead Cooled Blunt Body using the Wall Cooling Effectiveness
2007. 7th European Turbomachinery Conference - ETC7, Athens, Greece, 5-9 March 2007. p. 989-998.Experimental Investigation of Combined/Simultaneous Gust and Oscillating Turbine Row Unsteady Aerodynamics in Transonic Flow
2007. 7th European Turbomachinery Conference - ETC7, Athens, Greece, 5-9 March 2007. p. 1285-1297.Effect of transonic airflows on a dielectric barrier discharge
2006. Gordon Research Conference on Processing Plasmas.Temperature and Pressure Sensitive Coatings
Flow Phenomena in Nature, Volume 2 - Inspiration, Learning and Application; Southampton, UK: WIT Press, 2006. p. 747-766.Experimental Investigations of Turbine Blade Showerhead Cooling
2006. 13th International Heat Transfer Conference (IHTC-13), Sydney, Australia, August 13 - 18, 2006.Influence of Mainstream Incidence Angle on Leading Edge Film Cooling Measured by the Transient Liquid Crystal Technique
2006. 11th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery (ISROMAC-11), Honolulu, Hawaii, February 26 - March 2, 2006.Effects of transonic air flows on a dielectric barrier discharge
2006. Gordon Research Conference on Plasma Processing Science (GRC-PPS), Mount Holyoke College, South Hadley, MA, July 16-21, 2006.Experimental investigations on showerhead cooling on a blunt body
International Journal of Heat and Mass Transfer. 2006. DOI : 10.1016/j.ijheatmasstransfer.2005.10.012.A comparative study on showerhead cooling performance
International Journal of Heat and Mass Transfer. 2006. DOI : 10.1016/j.ijheatmasstransfer.2005.10.013.Combined/simultaneous gust and oscillating turbine row unsteady aerodynamics in subsonic flow
Experimental Thermal and Fluid Science. 2006. DOI : 10.1016/j.expthermflusci.2005.09.001.Influence of Modeshape Mistuning on the Forced Response of a Turbine Cascade
2006. 11th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery (ISROMAC-11), Honolulu, Hawaii, February 26 - March 2, 2006.Method for Analysis of Showerhead Film Cooling Experiments on Highly Curved Surfaces
2005. 6th European Turbomachinery Conference - ETC6, Lille, France, 7-11 March 2005. p. 381-389. DOI : 10.1016/j.expthermflusci.2006.05.006.The Transient Liquid Crystal Technique: Influence of Surface Curvature and Finite Wall Thickness
Journal of Turbomachinery. 2005. DOI : 10.1115/1.1811089.Combined/Simultaneous Gust and Oscillating Turbine Row Unsteady Aerodynamics in Subsonic Flow
2005.The Transient Liquid Crystal Technique: Influence of Surface Curvature and Finite Wall Thickness
2004.Boundary Layer Suction via a Slot in a Transonic Compressor - Numerical Parameter Study and First Results
2004.Experimental Investigation of an Oscillating Airfoil in the Prescence of Downstream-Generated Aerodynamic Gusts
2000.Viscous and Inviscid Linear/Nonlinear Calculations Versus Quasi 3D Experimental Cascade Data for a New Aeroelastic Turbine Standard Configuration
Journal of Turbomachinery. 1999. DOI : 10.1115/1.2836725.The Influence of Tailboards on Unsteady Measurements in a Linear Cascade
1998.Viscous and Inviscid Linear/Nonlinear Calculations Versus Quasi 3D Experimental Cascade Data for a New Aeroelastic Turbine Standard Configuration
1998.A Basic Forced Response Experiment
1997.Computation of Unsteady 3-D Transonic Nozzle Flows due to Fluctuating Back-Pressure using k-e Turbulence Closure
AIAA Journal. 1996. DOI : 10.2514/3.13237.Experimental and Numerical Study of the Time-Dependent Pressure Response of a Shock Wave Oscillating in a Nozzle
Journal of Turbomachinery. 1995. DOI : 10.1115/1.2835625.Computation of Unsteady 3-D Transonic Flows due to Fluctuating Back-Pressure using k-e Turbulence Closure
1995.Turbine Calculations With Structured and Unstructured Meshes
1994.Experimental and Numerical Study of the Time-Dependent Pressure Response of a Shock Wave Oscillating in a Nozzle
1993.Oszillierender senkrechter Verdichtungsstoss in einer ebenen Düse
Lausanne, EPFL, 1992. DOI : 10.5075/epfl-thesis-985.Unsteady pressure response to an oscillating normal schock wave in a nozzle
1992. 11th Symposium on Measuring Techniques in Transonic and Supersonic Flow in Cascades and Turbomachines, München, Germany, 14-15 September 1992.Numerical Computation of Unsteady Inviscid Transonic Flow Through Nozzles With Fluctuating Back Pressure
EPFL Supercomputing Review. 1988.Unsteady Flow Visualization in a Vibrating Annular Turbine Cascade Operating in the Transonic Flow Regime
1987. 4th International Symposium on Unsteady Aerodynamics and Aeroelasticity in Turbomachines and Propellers, Aachen, Germany, September 6-10, 1987.Infoscience
Accuracy Improvement of the Transient Heater Foil Technique for Heat Transfer Tests: Preliminary Results
2020-09-21. XXV Biannual Symposium on Measuring Techniques in Turbomachinery, Santorini, GR, September 21-23, 2020.Mechanisms of Control Authority by Nanosecond Pulsed Dielectric Barrier Discharge Actuators on Flow Separation
Applied Sciences. 2019. DOI : 10.3390/app9152989.Narrow Impingement Channels: Recent Advancements and Future Directions
2019. ETC13 - European Turbomachinery Conference, Lausanne, CH, April 8-12, 2019.Evaluation of Heat Transfer Coefficients for an Impingement Cooling Cascade: Experimental Challenges and Preliminary Results
2018. XXIV Biannual Symposium on Measuring Techniques in Turbomachinery, Prague, CZE, August 29-31, 2018.OES Characterization of Steamers in a Nanosecond Pulsed SBDB Using N2 and Ar Transitions
Plasma Soucre Science and Technology. 2016. DOI : 10.1088/0963-0252/25/4/045002.Aerothermal Investigation of a Single Row Divergent Narrow Impingement Channel by Particle Image Velocimetry and Liquid Crystal Thermography
Transactions- American Society of Mechanical Engineers Journal of Turbomachinery. 2016. DOI : 10.1115/1.4032328.Investigation of Nanosecond Pulse Dielectric Barrier Discharges in Still Air and in Transonic Flow by Optical Methods
IOP Journal of Physics D: Applied Physics. 2016. DOI : 10.1088/0022-3727/49/2/025204.Improved Accuracy in Jet Impingement Heat Transfer Experiments Considering the Layer Thicknesses of a Triple Thermochromic Liquid Crystal Coating
Transactions- American Society of Mechanical Engineers Journal of Turbomachinery. 2016. DOI : 10.1115/1.4031786.On the Effects of Coating Thickness in Transient Heat Transfer Experiments Using Thermochromic Liquid Crystals
Experimental Thermal and Fluid Science. 2016. DOI : 10.1016/j.expthermflusci.2015.08.011.High-Resolution Heat Transfer Measurements and Crossflow Regulation in Narrow Impingement Cooling Channels with Divergent Geometries
2015. 11th International Gas Turbine Congress, Tokyo, JP, November 15-20, 2015.Impact of ns-DBD Plasma Actuation on the Boundary Layer Transition Using Convective Heat Transfer Measurements
IOP Journal of Physics D: Applied Physics. 2015. DOI : 10.1088/0022-3727/48/36/365203.Investigation of Flow Separation Control by Nanosecond Pulsed Dielectric Barrier Discharge Actuators
Progress in Flight Physics; Moscow: EUCASS, Torus Press, 2015. p. 191-210.Heat Transfer Characteristics of High Crossflow Impingement Channels: Effect of Number of Holes
Proceedings of IMechE, Part A: Journal of Power and Energy. 2015. DOI : 10.1177/0957650915594074.Aeroeleasic Investigation of an Annular Transonic Compressor Cascade: Experimental Results
2015. ASME Turbo Expo 2015, Montreal, CA, June 15-19, 2015.Turbulent scale resolving modelling of rotating stall in low-pressure steam turbines operated under low volume flow conditions
2015. ASME Turbo Expo 2015, Montreal, CA, June 15-19, 2015.On the Applicability of a Triple Thermochromic Liquid Crystal Layer for Transient Heat Transfer Experiments
2015. 1st Thermal and Fluids Engineering Summer Conference (TFESC-1), New York City, USA, August 9-12, 2015.Heat Transfer Characteristics of High Crossflow Impingement Channels: Effect of Number of Holes
2015. 11th European Turbomachinery Conference, Madrid, SP, March 23-27, 2015. p. 1-10.A method to visualise near wall fluid flow patterns using locally resolved convective heat transfer experiments
Experimental Thermal and Fluid Science. 2015. DOI : 10.1016/j.expthermflusci.2014.09.009.Effect of Varying Jet Diameter on the Heat Transfer Distributions of Narrow Impingement Channels
Journal of Turbomachinery. 2015. DOI : 10.1115/1.4028294.Fluid Flow Pattern Visualisation: An Alternative Approach Using Highly Resolved Heat Transfer Experiments
2014. XXII Symposium on Measuring Techniques in Turbomachinery, Lyon, F, September 4-5, 2014.EPFL-GTT: Group of Thermal Turbomachinery
ERCOFTAC Bulletin. 2014.Experimental Investigation of Blade Group Vibrations in an Axial Turbine Cascade
Lausanne, EPFL, 2014. DOI : 10.5075/epfl-thesis-6194.Detailed Heat Transfer Distributions of Narrow Impingement Channels with Varying Jet Diameter
2014. GT-2014: ASME Turbo Expo 2014, Düsseldorf, D, June 16-20, 2014. p. 1-11.Experimental and Numerical Assessment of the Aeroelastic Stability of Blade Pair Packages
2014. GT-2014: ASME Turbo Expo 2014, Düsseldorf, D, June 16-20, 2014. p. 1-12.Detailed Heat Transfer Distributions of Narrow Impingement Channels for Cast-In Turbine Airfoils
Transactions- American Society of Mechanical Engineers Journal of Turbomachinery. 2014. DOI : 10.1115/1.4027679.Detailed heat transfer distributions of narrow impingement channels for integrally cast turbine airfoils
Lausanne, EPFL, 2014. DOI : 10.5075/epfl-thesis-6177.Unsteady aerodynamics of low-pressure steam turbines operating under low volume flow conditions
Lausanne, EPFL, 2014. DOI : 10.5075/epfl-thesis-6096.Unsteady Aerodynamics of Low-Pressure Steam Turbines Operating Under Low Volume Flow
Transactions- American Society of Mechanical Engineers Journal of Turbomachinery. 2014. DOI : 10.1115/1.4027373.Hole Staggering Effect on the Cooling Performance of Narrow Impingement Channels Using the Transient Liquid Crystal Technique
Transactions- American Society of Mechanical Engineers Journal of Heat Transfer. 2014. DOI : 10.1115/1.4027250.A Comparative Study of the Local Heat Transfer Distributions Around Various Surface Mounted Obstacles
Journal of Thermal Science. 2014. DOI : 10.1007/s11630-014-0692-8.Numerical and Experimental Investigations of an Annular Transonic Compressor Cascade Considering Leakage Flows
2014. 15th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery (ISROMAC-15), Honolulu, USA, February 24-28, 2014.Local Heat Transfer Distributions of Small Impingement Configurations: A Detailed Experimental Procedure Using Transient Heat Transfer Methods
2014. 15th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery (ISROMAC-15), Honolulu, USA, February 24 - 28, 2014.Experimental and numerical investigation of narrow impingement cooling channels
International Journal Of Heat And Mass Transfer. 2013. DOI : 10.1016/j.ijheatmasstransfer.2013.09.003.Experimental Aeroelastic Investigation of Vibrating Turbine Blade Clusters
18th Blade Mechanics Seminar, Winterthur, CH, September 11, 2013.Unsteady Aerodynamics of Low-Pressure Steam Turbines Operating Under Low Volume Flow
ANSYS Conference & 18th Swiss CADFEM Users‘ Meeting, Zurich, CH, September 05-06, 2013.Experimental and Numerical Investigation of a Fully Confined Impingement Round Jet
International Journal of Heat and Mass Transfer. 2013. DOI : 10.1016/j.ijheatmasstransfer.2013.06.043.Investigation of Flow Separation Control by Nanosecond Pulsed Dielectric Barrier Discharge Actuators
2013. EUCCAS 2013 – 5th European Conference for Aeronautics and Space Sciences, Munich, Germany, July 1-5, 2013.Experimental Investigation of Pulsed Dielectric Barrier Discharge Actuators in Sub- and Transonic Flow
2013. 44th AIAA Plasmadynamics and Lasers Conference, San Diego, CA, USA, June 24-27, 2013. DOI : 10.2514/6.2013-2885.Experimental Aeroelastic Analysis of Clustered Turbine Blades Vibrating in Mixed Torsion/Bending Mode
2013. 31st AIAA Applied Aerodynamics Conference, San Diego, CA, USA, June 24-27, 2013. DOI : 10.2514/6.2013-3152.Unsteady Aerodynamics of Low-Pressure Steam Turbines Operating Under Low Volume Flow
2013. ASME Turbo Expo 2013, San Antonio, Texas, USA, June 3-7, 2013.Evolution of the Aerodynamic Stability of an Oscillating Annular Compressor Cascade with Inlet Reverse Flow Condition Variations
2013. ETC10 - 10th European Conference on Turbomachinery, Lappeenranta, FI, April 14-19, 2013. p. 907-916.Experimental Aeroelastic Investigation of Vibrating Turbine Blade Clusters
2013. ETC10 - 10th European Conference on Turbomachinery, Lappeenranta, FI, April 14-19, 2013. p. 210-221.High Voltage Pulsed DBD Effects on the Aerodynamic Performances and on the Shock Buffet
ERCOFTAC Bulletin. 2013.Numerical and Experimental Investigation of the Aerodynamic Excitation of a Model Low-Pressure Steam Turbine Stage Operating Under Low Volume Flow
Journal of Engineering for Gas Turbines and Power. 2013. DOI : 10.1115/1.4007334.High Voltage Pulsed DBD Effects on the Aerodynamic Performances and on the Shock Buffet
Joint ERCOFTAC/PLASMAERO Public Workshop, Toulouse; F, December 10-12, 2012.Thermocouple Thermal Inertia Effects on Impingement Heat Transfer Experiments Using the Transient Liquid Crystal Technique
Measurement Science and Technology. 2012. DOI : 10.1088/0957-0233/23/11/115303.Characterization of Kinetic Processes in Nano Pulsed SDBD
2012. NEPCAP 2012 - 5th International Symposium on "Non-Equilibrium Processes, Plasma, Combustion, and Atmospheric Phenomena", Sochi (Loo), RU, October 1-6, 2012.Experimental Investigations of an Oscillating Annular Compressor Cascade at Reverse Flow Conditions
2012. ISUAAAT13 - 13th International Symposium on Unsteady Aerodynamics, Aeroacoustics and Aeroelasticity of Turbomachines, Tokyo, JP, September 11-14, 2012.Aerodynamic Excitation of a Model Low-Pressure Steam Turbine Stage Under Low Volume Flow
17th Blade Mechanics Seminar, Winterthur, CH, September 12, 2012.Investigation of High-Pressure Turbine Endwall Film-Cooling Performance Under Realistic Inlet Conditions
AIAA Journal of Propulsion and Power. 2012. DOI : 10.2514/1.59225.Hole Staggering Effect on the Cooling Performance of Narrow Impingement Channels
2012. ASME Turbo Expo 2012 (GT2012), Copenhagen, DK, June 11-15, 2012.Numerical and Experimental Investigation of the Aerodynamic Excitation of a Model Low-Pressure Steam Turbine Stage Operating Under Low Volume Flow
2012. ASME Turbo Expo 2012 (GT2012), Copenhagen, DK, June 11-15, 2012.Swirl Jets in Crossflow at Low Velocity Ratios
Journal of Mechanics Engineering and Automation. 2012.Experimental Investigation of the Aeroelastic Stability of an Annular Compressor Cascade at Reverse Flow Conditions
Lausanne, EPFL, 2012. DOI : 10.5075/epfl-thesis-5358.Heat Transfer and Performance Characteristics of Axial Cooling Fans with Downstream Guide Vanes
Journal of Thermal Science. 2012. DOI : 10.1007/s11630-012-0531-8.Influence of Thermocouple Thermal Inertia in Impingement Heat Transfer Experiments Using Transient Techniques
2012. XXI Biannual Symposium on Measuring Techniques in Turbomachinery, Valencia, E, March 22-23, 2012.Investigation of High Pressure Turbine End-Wall Film Cooling Performances under Realistic Inlet Conditions
2011. XX International Symposium on Air Breathing Engines (ISABE), Gothenburg, S, September 12-16, 2011.Investigation on the Three-Dimensional Flow Mechanisms in Annular Axial Compressor Cascades for Aero Engines with Flow Control by Aspiration on the Hub and on the Blades
Lausanne, EPFL, 2011. DOI : 10.5075/epfl-thesis-5241.Effect of Stators on the Performance and the Thermal Capabilities of Small Axial Cooling Fans
2011. 10th International Symposium on Experimental and Computational Aerothermodynamics of Internal Flows (ISAIF-10), Brussels, Belgium, 4-7 July, 2011.Interaction Between Nanosecond Pulse DBD Actuators and Transonic Flow
2011. 41st AIAA Fluid Dynamics Conference and Exhibit, Honolulu, HI, USA, June 27-40, 2011.Aeroelasticity at Reversed Flow Conditions – Part 1: Numerical and Experimental Investigations of a Compressor Cascade with Controlled Vibration
2011. ASME Turbo Expo 2011, Power for Land, Sea & Air, Vancouver, CAN, June 6-10, 2011.Electron temperature measurements using N2 and Argon transitions in an ATP fast pulsed DBD
2011 Aerospace Thematic Workshop at Les Houches (Fundamentals of Aerodynamic Flow and Combustion Control by Plasmas), Les Houches, France, March 27 - April 01, 2011.Experimental Investigations of the Aerodynamics of an Annular Compressor Cascade at Reversed Flow Conditions
2011. 9th European Conference on Turbomachinery, Istanbul, Turkey, March 21-25, 2011. p. 249-259.Swirl Jet and Crossflow Interaction at Low Velocity Ratios and Incompressible Flows
2011. 9th European Conference on Turbomachinery, Istanbul, Turkey, March 21-25, 2011. p. 133-144.Influence of Blade Aspiration on the Flow Quality of an Annular Axial Compressor Cascade
2011. 9th European Conference on Turbomachinery, Istanbul, Turkey, March 21-25, 2011. p. 1345-1356.Characterization of the Flow Generated in an Annular Test Facility
2011. 9th European Conference on Turbomachinery, Istanbul, Turkey, March 21-25, 2011. p. 1413-1424.Investigation of End-Wall Film Cooling Configuration Performances in a Linear Cascade
2010. 65° Congresso Nazionale ATI, Cagliari, Italy, September 13-17, 2010.Aero Engine Flow Control by Surface Discharge Plasma
2010. III International Scientific and Technical Conference - Aeroengines of XXI Century, Moscow, RU, November 30 - December 3, 2010.Heat Transfer Measurements in a Turbine Cascade: Taking Advantage of the Thermal Bahaviour of a PSP Sensor
2010. XX Biannual Symposium on Measuring Techniques in Turbomachinery, Transonic and Supersonic Flow in Cascades and Turbomachines, Milano, Italy, September 23-24, 2010.Surface DBD’s and plasma-flow interaction
2010. Euromech Fluid Mechanics Conference - 8, Bad Reichenhall, D, September 13-16, 2010.Investigations on Axial Compressor Cascades with Aspiration on Blades and Hub
European Workshop on New Aero Engine Concepts, Munich, Germany, June 30-July 1, 2010.Application of Photoluminescent Measurement Techniques for Quantitative Assessment of Turbine Film Cooling
Lausanne, EPFL, 2010. DOI : 10.5075/epfl-thesis-4650.EPFL-LTT: Turbomachinery Laboratory
ERCOFTAC Bulletin. 2009.Experimental and Numerical Study of the Thermal Performance of a Film Cooled Turbine Platform
2009. ASME Turbo Expo 2009, Orlando, Fl, USA, June 8-12, 2009. p. 1027-1038.Effects of a surface dielectric barrier discharge on transonic flows around an airfoil
2009. 47th AIAA Aerospace Sciences Meeting, Orlando, Florida, USA, January 05-08, 2009.Interaction between a surface dielectric barrier discharge and transonic airflows
Lausanne, EPFL, 2008. DOI : 10.5075/epfl-thesis-4201.Comparison of Numerical Investigations With Measured Heat Transfer Performance of a Film Cooled Turbine Vane
2008. 53rd ASME Turbo Expo 2008, Berlin, Germany, June 9-13, 2008. p. 571-582.Application of the Transient Heater Foil Technique for Heat Transfer and Film Cooling Effectiveness Measurements on a Turbine Vane Endwall
2008. 53rd ASME Turbo Expo 2008, Berlin, Germany, June 9-13, 2008. p. 443-453.Application of the Transient Heater Foil Technique for Heat Transfer Measurements
2008. XIX Biannual Symposium on Measuring Techniques in Turbomachinery, VKI, Rhode-St-Genèse, Belgium, April 7-8, 2008.Numerical Analysis of Adiabatic Film Cooling Effectiveness Around HP-Turbine Airfoil – Decomposed Computation of Internal-External Airflows
2008. ISROMAC-12, Honolulu, Hawaii, USA, 17-22 February, 2008.Leading Edge Film Cooling and the Influence of Fan Shaped Holes at Design and Off-Design Conditions
2007. ASME Turbo Expo 2007, Montreal, Canada, May 14-17, 2007.Effects of high-speed airflows on a surface dielectric barrier discharge
Journal of Physics D : Applied Physics. 2007. DOI : 10.1088/0022-3727/40/6/021.Heat Transfer Experiments on an Heavily Film Cooled Nozzle Guide Vane
2007. 7th European Turbomachinery Conference - ETC7, Athens, Greece, 5-9 March 2007. p. 1011-1020.Analysis of the Cooling Performance on a Showerhead Cooled Blunt Body using the Wall Cooling Effectiveness
2007. 7th European Turbomachinery Conference - ETC7, Athens, Greece, 5-9 March 2007. p. 989-998.Experimental Investigation of Combined/Simultaneous Gust and Oscillating Turbine Row Unsteady Aerodynamics in Transonic Flow
2007. 7th European Turbomachinery Conference - ETC7, Athens, Greece, 5-9 March 2007. p. 1285-1297.Temperature and Pressure Sensitive Coatings
Flow Phenomena in Nature, Volume 2 - Inspiration, Learning and Application; Southampton, UK: WIT Press, 2006. p. 747-766.Experimental Investigations of Turbine Blade Showerhead Cooling
2006. 13th International Heat Transfer Conference (IHTC-13), Sydney, Australia, August 13 - 18, 2006.Influence of Mainstream Incidence Angle on Leading Edge Film Cooling Measured by the Transient Liquid Crystal Technique
2006. 11th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery (ISROMAC-11), Honolulu, Hawaii, February 26 - March 2, 2006.Effects of transonic air flows on a dielectric barrier discharge
2006. Gordon Research Conference on Plasma Processing Science (GRC-PPS), Mount Holyoke College, South Hadley, MA, July 16-21, 2006.Experimental investigations on showerhead cooling on a blunt body
International Journal of Heat and Mass Transfer. 2006. DOI : 10.1016/j.ijheatmasstransfer.2005.10.012.A comparative study on showerhead cooling performance
International Journal of Heat and Mass Transfer. 2006. DOI : 10.1016/j.ijheatmasstransfer.2005.10.013.Combined/simultaneous gust and oscillating turbine row unsteady aerodynamics in subsonic flow
Experimental Thermal and Fluid Science. 2006. DOI : 10.1016/j.expthermflusci.2005.09.001.Influence of Modeshape Mistuning on the Forced Response of a Turbine Cascade
2006. 11th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery (ISROMAC-11), Honolulu, Hawaii, February 26 - March 2, 2006.Method for Analysis of Showerhead Film Cooling Experiments on Highly Curved Surfaces
2005. 6th European Turbomachinery Conference - ETC6, Lille, France, 7-11 March 2005. p. 381-389. DOI : 10.1016/j.expthermflusci.2006.05.006.The Transient Liquid Crystal Technique: Influence of Surface Curvature and Finite Wall Thickness
Journal of Turbomachinery. 2005. DOI : 10.1115/1.1811089.Combined/Simultaneous Gust and Oscillating Turbine Row Unsteady Aerodynamics in Subsonic Flow
2005.The Transient Liquid Crystal Technique: Influence of Surface Curvature and Finite Wall Thickness
2004.Boundary Layer Suction via a Slot in a Transonic Compressor - Numerical Parameter Study and First Results
2004.Experimental Investigation of an Oscillating Airfoil in the Prescence of Downstream-Generated Aerodynamic Gusts
2000.Viscous and Inviscid Linear/Nonlinear Calculations Versus Quasi 3D Experimental Cascade Data for a New Aeroelastic Turbine Standard Configuration
Journal of Turbomachinery. 1999. DOI : 10.1115/1.2836725.Teaching & PhD
Teaching
Mechanical Engineering