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Homogeneous turbulence subjected to mean flow with elliptic streamlinesDirect numerical simulations are performed for homogeneous turbulence with a mean flow having elliptic streamlines. This flow combines the effects of rotation and strain on the turbulence. Qualitative comparisons are made with linear theory for cases with high Rossby number. The nonlinear transfer process is monitored using a generalized skewness. In general, rotation turns off the nonlinear cascade; however, for moderate ellipticities and rotation rates the nonlinear cascade is turned off and then reestablished. Turbulence statistics of interest in turbulence modeling are calculated, including full Reynolds stress budgets.
Document ID
19950014639
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Blaisdell, G. A. (NASA Ames Research Center Moffett Field, CA, United States)
Shariff, K. (Purdue Univ. West Lafayette, IN., United States)
Date Acquired
September 6, 2013
Publication Date
December 1, 1994
Publication Information
Publication: Stanford Univ., Studying Turbulence Using Numerical Simulation Databases. 5: Proceedings of the 1994 Summer Program
Subject Category
Fluid Mechanics And Heat Transfer
Accession Number
95N21056
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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