Campus Units

Aerospace Engineering

Document Type

Article

Publication Version

Submitted Manuscript

Publication Date

2-2013

Journal or Book Title

International Journal of Heat and Fluid Flow

Volume

39

First Page

78

Last Page

89

DOI

10.1016/j.ijheatfluidflow.2012.11.006

Abstract

Two approaches to incorporate the effects of rotation and curvature in scalar eddy viscosity models are explored. One is the “Modified coefficients approach” – to parameterize the model coefficients such that the growth rate of turbulent kinetic energy is suppressed or enhanced. The other is the “Bifurcation approach” – to parameterize the eddy viscosity coefficient such that the equilibrium solution bifurcates from healthy to decaying solution branches. Simple, yet, predictive models in each of these two approaches are proposed and validated on some benchmark test cases characterized by profound effects of system rotation and/or streamline curvature. The results obtained with both the models are encouraging.

Comments

This article is published as Arolla, Sunil K., and Paul A. Durbin. "Modeling rotation and curvature effects within scalar eddy viscosity model framework." International Journal of Heat and Fluid Flow 39 (2013): 78-89. 10.1016/j.ijheatfluidflow.2012.11.006. Posted with permission.

Copyright Owner

Elsevier Inc.

Language

en

File Format

application/pdf

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