Anisotropic RANS Turbulence Modeling for Wakes in an Active Ocean Environment

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TR Number
Date
2020-12-18
Journal Title
Journal ISSN
Volume Title
Publisher
MDPI
Abstract

The problem of simulating wakes in a stratified oceanic environment with active background turbulence is considered. Anisotropic RANS turbulence models are tested against laboratory and eddy-resolving models of the problem. An important aspect of our work is to acknowledge that the environment is not quiescent; therefore, additional sources are included in the models to provide a non-zero background turbulence. The RANS models are found to reproduce some key features from the eddy-resolving and laboratory descriptions of the problem. Tests using the freestream sources show the intuitive result that background turbulence causes more rapid wake growth and decay.

Description
Keywords
stratified wakes, Turbulence, RANS, stress-transport
Citation
Wall, D.; Paterson, E. Anisotropic RANS Turbulence Modeling for Wakes in an Active Ocean Environment. Fluids 2020, 5, 248.