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Anisotropic RANS Turbulence Modeling for Wakes in an Active Ocean Environment
Version 1
: Received: 14 November 2020 / Approved: 16 November 2020 / Online: 16 November 2020 (15:40:25 CET)
A peer-reviewed article of this Preprint also exists.
Wall, D.; Paterson, E. Anisotropic RANS Turbulence Modeling for Wakes in an Active Ocean Environment †. Fluids 2020, 5, 248. Wall, D.; Paterson, E. Anisotropic RANS Turbulence Modeling for Wakes in an Active Ocean Environment †. Fluids 2020, 5, 248.
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.
Keywords
Stratified Wakes; Turbulence; RANS; Secont-Moment Closure; Stress-transport
Subject
Engineering, Marine Engineering
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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