Physics-Preserving Turbulent Closure Models

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.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 2001
Accession Number
ADP013642

Entities

People

  • Liqiu Wang

Organizations

  • University of Hong Kong

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Computational Fluid Dynamics
  • Constitutive Equations
  • Eigenvalues
  • Engineering
  • Equations
  • Hong Kong
  • Inequalities
  • Large Eddy Simulation
  • Literature
  • Mechanical Engineering
  • Payload
  • Physics
  • Rotation
  • Technical Information Centers
  • Thermodynamics
  • Turbulence
  • Two Dimensional

Readers

  • Calculus or Mathematical Analysis
  • Computational Fluid Dynamics (CFD)
  • Systems Analysis and Design