Edouard Boujo

Boujo, E., Bourquard, C., Xiong, Y. and Noiray, N., Processing time-series of randomly forced self-oscillators: the example of beer bottle whistling, Journal of Sound and Vibration, 464, 114981 (2020).

Boujo, E. and Sellier, M., Pancake making and surface coating: optimal control of a gravity-driven liquid film, Physical Review Fluids, 4 (6), 064802 (2019).

Boujo, E. and Cadot, O., Stochastic modeling of a freely rotating disk facing a uniform flow, Journal of Fluids and Structures, 86, 34-43 (2019).

Boujo, E., Bauerheim, M. and Noiray N., Saturation of a turbulent mixing layer over a cavity: response to harmonic forcing around mean flows, Journal of Fluid Mechanics, 853, 386-418 (2018)

Bonciolini, G., Ebi, D., Boujo, E. and Noiray N., Experiments and modelling of rate-dependent transition delay in a stochastic subcritical bifurcation, Royal Society Open Science, 5: 170278 (2018).

Bonciolini, G., Boujo, E. and Noiray, N., Output-only parameter identification of a colored-noise-driven Van der Pol oscillator – Thermoacoustic instabilities as an example, Physical Review E, 95 (6), 062217 (2017).

Boujo, E. and Noiray, N., Robust identification in thermo-acoustic systems with the adjoint Fokker-Planck equation, Proceedings of the Royal Society A, 473: 20160894 (2017).

Boujo, E., Denisov, A., Schuermans B. and Noiray, N., Quantifying acoustic damping using flame chemiluminescence, Journal of Fluid Mechanics, 808, 245-257 (2016).

Teaching & PhD

Teaching

Mechanical Engineering

PhD Students

Lagwankar Atharva Nilesh,

Courses

Finite element modelling and simulation

The objective of this course is to learn how to carry out rigorous and critical finite element analyzes of realistic problems in solid mechanics using state-of-the-art CAE software.

Numerical flow simulation

This course provides practical experience in the numerical simulation of fluid flows. Numerical methods are presented in the framework of the finite volume method. A simple solver is developed with Matlab, and a commercial software is used for more complex problems.

Edouard Boujo

Scientist

Publications

Infoscience publications

At EPFL:

Journal Articles

Adjoint-aided Homogenisation for Flows Through Heterogeneous Membranes

Stability and dynamics of the laminar flow past rectangular prisms

A general model for spin coating on a non-axisymmetric curved substrate

Noise-induced transitions past the onset of a steady symmetry-breaking bifurcation: The case of the sudden expansion

Three-dimensional nonlinear dynamics of a thin liquid film on a spinning ellipsoid

From thin plates to Ahmed bodies: linear and weakly nonlinear stability of rectangular prisms

Liquid film instability of an internally coated horizontal tube

Weakly nonlinear evolution of stochastically driven non-normal systems

Weak nonlinearity for strong non-normality

Thin Liquid Film Dynamics on a Spinning Spheroid

Second-order adjoint-based sensitivity for hydrodynamic stability and control

Optimal spanwise-periodic control for recirculation length in a backward-facing step flow

Second-order sensitivity in the cylinder wake: Optimal spanwise-periodic wall actuation and wall deformation

Revisiting the drag reduction problem using adjoint-based distributed forcing of laminar and turbulent flows over a circular cylinder

Numerical simulation and sensitivity analysis of a low-Reynolds-number flow around a square cylinder controlled using plasma actuators

Second-order sensitivity of parallel shear flows and optimal spanwise-periodic flow modifications

Sensitivity and open-loop control of stochastic response in a noise amplifier flow: the backward-facing step

Manipulating flow separation: sensitivity of stagnation points, separatrix angles and recirculation area to steady actuation

Controlled reattachment in separated flows: a variational approach to recirculation length reduction

Sensitivity of aerodynamic forces in laminar and turbulent flow past a square cylinder

Open-loop control of a separated boundary layer

Open-loop control of noise amplification in separated boundary layers

Conference Papers

Pushing amplitude equations far from threshold: application to the supercritical Hopf bifurcation in the cylinder wake

Open-loop control of a separated boundary layer

Etude expérimentale de l’écoulement derrière une bosse

Theses

An adjoint-based approach to the optimal control of separated flows

Talks

A linearized approach for the control of aerodynamic forces in flow past a square cylinder

Sensitivity of aerodynamic forces in laminar and turbulent flow past a square cylinder

Sensitivity of stochastic perturbations in a noise amplifier flow

Second-order sensitivity of parallel shear flows and optimal spanwise-periodic flow modifications

Forced reattachment in separated flows: a variational approach to recirculation length reduction

Sensitivity of optimal gains in a detached boundary layer

Optimal open-loop control of the recirculation length in the wake of a cylinder