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Subgrid-Scale Stress Modelling Based on the Square of the Velocity Gradient Tensor

Subgrid-Scale Stress Modelling Based on the Square of the Velocity Gradient Tensor A new subgrid scale model is proposed for Large Eddy Simulations in complex geometries. This model which is based on the square of the velocity gradient tensor accounts for the effects of both the strain and the rotation rate of the smallest resolved turbulent fluctuations. Moreover it recovers the proper y 3 near-wall scaling for the eddy viscosity without requiring dynamic procedure. It is also shown from a periodic turbulent pipe flow computation that the model can handle transition. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png "Flow, Turbulence and Combustion" Springer Journals

Subgrid-Scale Stress Modelling Based on the Square of the Velocity Gradient Tensor

"Flow, Turbulence and Combustion" , Volume 62 (3) – Oct 14, 2004

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References (31)

Publisher
Springer Journals
Copyright
Copyright © 1999 by Kluwer Academic Publishers
Subject
Engineering; Engineering Fluid Dynamics; Fluid- and Aerodynamics; Engineering Thermodynamics, Heat and Mass Transfer; Automotive Engineering
ISSN
1386-6184
eISSN
1573-1987
DOI
10.1023/A:1009995426001
Publisher site
See Article on Publisher Site

Abstract

A new subgrid scale model is proposed for Large Eddy Simulations in complex geometries. This model which is based on the square of the velocity gradient tensor accounts for the effects of both the strain and the rotation rate of the smallest resolved turbulent fluctuations. Moreover it recovers the proper y 3 near-wall scaling for the eddy viscosity without requiring dynamic procedure. It is also shown from a periodic turbulent pipe flow computation that the model can handle transition.

Journal

"Flow, Turbulence and Combustion"Springer Journals

Published: Oct 14, 2004

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