A DYNAMIC SUBGRID-SCALE MODEL FOR COMPRESSIBLE TURBULENCE AND SCALAR TRANSPORT

被引：1032

作者：

MOIN, P ^{[1
]}

SQUIRES, K ^{[1
]}

CABOT, W ^{[1
]}

LEE, S ^{[1
]}

机构：

[1] NASA,AMES RES CTR,MOFFETT FIELD,CA 94035

来源：

PHYSICS OF FLUIDS A-FLUID DYNAMICS | 1991年 / 3卷 / 11期

关键词：

D O I：

10.1063/1.858164

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The dynamic subgrid-scle (SGS) model of Germano et al. [Phys. Fluids A 3, 1760 (1991)] is generalized for the large eddy simulation (LES) of compressible flows and transport of a scalar. The model was applied to the LES of decaying isotropic turbulence, and the results are in excellent agreement with experimental data and direct numerical simulations. The expression for the SGS turbulent Prandtl number was evaluated using direct numerical simulation (DNS) data in isotropic turbulence, homogeneous shear flow, and turbulent channel flow. The qualitative behavior of the model for turbulent Prandtl number and its dependence on molecular Prandtl number, direction of scalar gradient, and distance from the wall are in accordance with the total turbulent Prandtl number from the DNS data.

引用

页码：2746 / 2757

页数：12

共 21 条

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