Accession Number:

ADP013649

Title:

Velocity Filtered Density Function for Large Eddy Simulation of a Turbulent Mixing Layer

Descriptive Note:

Conference paper

Corporate Author:

STATE UNIV OF NEW YORK AT BUFFALO DEPT OF MECHANICAL AND AEROSPACE ENGINEERING

Report Date:

2001-08-01

Pagination or Media Count:

9.0

Abstract:

The velocity filtered density function VFDF methodology is employed for large eddy simulation LES of a three-dimensional, temporally developing, turbulent mixing layer. A transport equation is derived for the VFDF in which the effects of the subgrid scale SGS convection appear in closed form. The unclosed terms in this equation are modeled. A system of stochastic differential equations SDEs which yields statistically equivalent results to the modeled VFDF transport equation is proposed. These SDEs are solved numerically by a Lagrangian Monte Carlo procedure. The VFDF results are compared with those obtained via several existing SGS closures and with data obtained by direct numerical simulation DNS of the mixing layer.

Subject Categories:

  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE