Rapidly sheared homogeneous stratified turbulence in a rotating frame
| Autor: | Kassinos, Stavros C., Akylas, Evaggelos, Langer, C. A. |
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| Přispěvatelé: | Kassinos, Stavros C. [0000-0002-3501-3851] |
| Jazyk: | angličtina |
| Rok vydání: | 2007 |
| Předmět: |
Environmental Engineering
Rotation K-epsilon turbulence model Computational Mechanics Stratified flows Stratification (water) K-omega turbulence model Numerical solutions Turbulent flow Physics::Fluid Dynamics symbols.namesake Tensor methods Turbulent flows Stratified flow Rotating flows Rapid distortion theory Fluid Flow and Transfer Processes Physics Mathematical models Turbulence Mechanical Engineering Statistics Isotropy Mechanics Condensed Matter Physics Fourier analysis Rotating frame Fourier transform Classical mechanics Mechanics of Materials symbols Engineering and Technology Reynolds stress modeling |
| Zdroj: | Physics of Fluids |
| Popis: | Rapid distortion theory is applied to stratified homogeneous turbulence that is sheared in a rotating frame. Insight into the stabilizing and destabilizing effects of the combined stratification and frame rotation is gained by considering initial fields that are two-dimensional, with the axis of independence aligned with the flow direction. For these conditions, we derive solutions for the Fourier components of the flow variables, and for one-point statistics in physical space. The analytical results are in qualitative agreement with the exact numerical solution for initially isotropic homogeneous turbulence, and they could be a reference point for the development of turbulence models. © 2007 American Institute of Physics. 19 |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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