Spectral relationships between velocity and temperature fluctuations in turbulent shear flows
- 1 January 1983
- journal article
- research article
- Published by AIP Publishing in Physics of Fluids
- Vol. 26 (8) , 2105
- https://doi.org/10.1063/1.864415
Abstract
The frequency dependence of a turbulent Prandtl number, defined using the Reynolds shear stress and normal heat flux co‐spectra, in various turbulent shear flows accentuates the inadequacy of the Reynolds analogy from a spectral point of view. For the same flows, the analogy between spectral distributions of the kinetic energy and the temperature variance is validated over a significant frequency domain. This analogy suggests a spectral parameter which is very close to unity in this frequency range for all the flows considered.Keywords
This publication has 0 references indexed in Scilit: