Accession Number:

ADP013642

Title:

Physics-Preserving Turbulent Closure Models

Descriptive Note:

Conference paper

Corporate Author:

HONG KONG UNIV DEPT OF MECHANICAL ENGINEERING

Personal Author(s):

Report Date:

2001-08-01

Pagination or Media Count:

12.0

Abstract:

Both necessary and sufficient conditions are derived in a systematic, rigorous way for a subgrid-scale SGS flux vector model to preserve the frame-indifference of the vector and to satisfy both the principle of material frame indifference PMFI and the second law of thermodynamics. This leads to the results either confirming the previous intuitive arguments or offering new insights into turbulence modelling, and is of significance in clarifying some controversies in the literature, examining how well existing models preserve the physics, and developing new models.

Subject Categories:

  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE