Title

A Unified Formulation Of The Spectra Of Temperature Fluctuations In Isotropic Turbulence

Abstract

The paper gives a unified formulation of the spectra of temperature fluctuations in isotropic turbulence in all subregimes of wavenumbers. This is accomplished by making a systematic analysis of the effects of the fluid convection, viscosity and thermal diffusivity on the temperature spectrum. A generalized Heisenberg von Weizsacker type model is used to describe the statistical interaction of the Fourier components of velocity and temperature. The latter is described in terms of kinetic energy and temperature variance transfer coefficients given by moments of the two spectra for large-wavenumber modes.

Publication Date

12-1-1991

Publication Title

Journal of Physics A: Mathematical and General

Volume

24

Issue

20

Number of Pages

4721-4729

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1088/0305-4470/24/20/007

Socpus ID

0007855285 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0007855285

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