Abstract
Results of application of a subgrid-scale (SGS) model to describe turbulence arising in a stably stratified flow above an obstacle are shown for high Schmidt/Prandtl numbers. An appropriate SGS Schmidt/Prandtl number is 0.3 for the case of weakly unstable stratification in the internal wave breaking region. Use of the SGS model allows us to remove numerical noise and obtain adequate spectra, as well as fine details of secondary instabilities during the transition to turbulence.
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Yakovenko, S.N., Thomas, T.G., Castro, I.P. (2014). On Subgrid-Scale Model Implementation for a Lee-Wave Turbulent Patch in a Stratified Flow above an Obstacle. In: Talamelli, A., Oberlack, M., Peinke, J. (eds) Progress in Turbulence V. Springer Proceedings in Physics, vol 149. Springer, Cham. https://doi.org/10.1007/978-3-319-01860-7_38
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DOI: https://doi.org/10.1007/978-3-319-01860-7_38
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-01859-1
Online ISBN: 978-3-319-01860-7
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