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|Title:||Rapid shear of initially anisotropic turbulence in a rotating frame||Authors:||Akylas, Evangelos
Langer, C. A.
|Major Field of Science:||Engineering and Technology||Field Category:||Civil Engineering||Keywords:||Turbulent flows;Tensor methods;Isotropic turbulence;Eddies;Reynolds stress modeling||Issue Date:||Feb-2007||Source:||Physics of Fluids, 2007, vol. 19, no. 2||Volume:||19||Issue:||2||Journal:||Physics of Fluids||Abstract:||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||ISSN:||1089-7666||DOI:||10.1063/1.2675939||Rights:||© American Institute of Physics||Type:||Article||Affiliation :||Institute of Environmental Research
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