An LIA+EDQNM strategy to study shocked turbulent mixtures

Direct numerical simulations (DNS) of the interaction of shock waves with turbulent mixtures are only affordable for very low Reynolds numbers. We propose here to couple the Linear Interaction Analysis (LIA) with an Eddy-Damped Quasi-Normal Markovian (EDQNM) model to get inexpensive valuable information at large Reynolds number.

Self-similar regimes in Unstably Stratified Homogeneous Turbulence

Unstably stratified homogeneous turbulence develops at late time a self-similar dynamics characterized by an exponential growth of turbulent quantities. It is believed from recent theoretical studies that different growth rates are possible, depending on the initial distribution of energy at large scales. In order to confirm these predictions,...

Self-similar regimes in Unstably Stratified Homogeneous Turbulence

Unstably stratified homogeneous turbulence develops at late time a self-similar dynamics characterized by an exponential growth of turbulent quantities. It is believed from recent theoretical studies that different growth rates are possible, depending on the initial distribution of energy at large scales. In order to confirm these predictions,...

A new Eulerian Monte Carlo method for the joint velocity-scalar PDF equations in turbulent flows

In the field of turbulent combustion, Lagrangian Monte Carlo (LMC) methods (Pope, 85) have become an essential component of the probability density function (PDF) approach. LMC methods are based on stochastic particles, which evolve from prescribed stochastic ordinary differential equations (SODEs). They are used to compute the one-point...