Return to isotropy of homogeneous shear-released turbulence
| Autor: | Ping-Fan Yang, Haitao Xu, Alain Pumir |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Fluid Flow and Transfer Processes
Physics Field (physics) Turbulence Isotropy Computational Mechanics Reynolds number Mechanics Vorticity 01 natural sciences 010305 fluids & plasmas Physics::Fluid Dynamics Shear (sheet metal) symbols.namesake Modeling and Simulation 0103 physical sciences symbols 010306 general physics Shear flow Anisotropy |
| Zdroj: | Physical Review Fluids. 6 |
| ISSN: | 2469-990X |
| DOI: | 10.1103/physrevfluids.6.044601 |
| Popis: | In homogeneous shear flow, turbulence exhibits anisotropic properties affecting all scales of motion at finite Reynolds numbers. Upon releasing the mean shear, the anisotropy characterizing the velocity field decays over a large eddy turnover time. The decay of the anisotropy of the vorticity field, however involves a range of time-scales, from the short (Kolmogorov) time scale, up to the large eddy turnover time. |
| Databáze: | OpenAIRE |
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