Numerical simulation and modeling of turbulent combustion
Main research topics
Theory, modeling and numerical simulations are used to address turbulent combustion related problems. Three main research topics are developed:
Study the fundamentals of flames using asymptotic analysis and simulation of canonical combustion problems;
Develop advanced numerical methods, algorithm and codes for high fidelity simulation of turbulent combustion;
Propose innovative subgrid scale modeling for Large Eddy Simulation of turbulent reacting flows and implement these closures in computer codes to help in combustion system design.
Recent results and ongoing projects:
1. Modeling of combustion/turbulence interaction a. Large Eddy Simulation (LES) i. Development of advanced methods to include detailed kinetics in LES. ii. Influence of the turbulent mixing time history on turbulent flames local structure. iii. Characterization of ignition mechanisms and pollutants prediction.
b. Asymptotic methods i. Representation of the turbulent flame through Evolution Equation Modelling (EEM) for the flame front. ii. Coupling EEM with Direct Numerical Simulation (DNS).
2. High performance simulation i. Development of a novel approach for the treatment of three-dimensional boundary conditions in compressible solvers. ii. YALES2 project: Highly resolved simulations of liquid fuel combustion, from primary atomization to pollutants prediction. Application to car engines, gas turbines or industrial furnaces, ... iii. Direct Numerical Simulation of realistic combustion systems featuring several billions of cells (unstructured mesh).
3. Multiphysics modeling i. Flame control using electrodynamics. ii. Meso-combustion: combustion at the centimetric scale. iii. Coupling radiative transport and combustion.