Simulación numérica directa en turbulencia

Abstract

This paper describes the numerical technique known as Direct Numerical Simulation (DNS) applied to Fluid Mechanics. Under this approach the Navier-Stokes equations are numerically solved without additional hypothesis for both, laminar and turbulent flows (i.e., without any turbulence model). Finally, two specific cases are considered where results are presented: mixing of two scalars in homogeneous and steady turbulence and combustion of a stratified mixture.