Stabilization parameters and smagorinsky turbulence model

Akin, J. E. ; Tezduyar, T. ; Ungor, M. ; Mittal, S. (2003) Stabilization parameters and smagorinsky turbulence model Journal of Applied Mechanics, 70 (1). pp. 2-9. ISSN 0021-8936

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For the streamline-upwind/Petrov-Galerkin and pressure-stabilizing/Petrov-Galerkin formulations for flow problems, we present in this paper a comparative study of the stabilization parameters defined in different ways. The stabilization parameters are closely related to the local length scales ("element length"), and our comparisons include parameters defined based on the element-level matrices and vectors, some earlier definitions of element lengths, and extensions of these to higher-order elements. We also compare the numerical viscosities generated by these stabilized formulations with the eddy viscosity associated with a Smagorinsky turbulence model that is based on element length scales.

Item Type:Article
Source:Copyright of this article belongs to American Society of Mechanical Engineers.
Keywords:Turbulence; Flow Instability; Viscosity; External Flows; Flow Simulation
ID Code:24689
Deposited On:30 Nov 2010 09:26
Last Modified:07 Jun 2011 06:57

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