Effect of anisotropy and viscous dissipation on turbulence production

Details Effect of anisotropy and viscous dissipation on turbulence production Effect of anisotropy and viscous dissipation on turbulence production

May 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985ap%26ss.112..209k&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 112, no. 1, May 1985, p. 209-212.

Astronomy and Astrophysics

Astrophysics

Anisotropy, Homogeneous Turbulence, Turbulent Flow, Viscous Fluids, Energy Dissipation, Incompressible Fluids, Reynolds Stress

Scientific paper

The turbulent flow of incompressible, spatially homogeneous viscous fluid is considered. A model for the turbulence energy equation is obtained, ignoring the pressure redistribution term in dynamical equations for the Reynolds stresses. The mechanisms of dissipation on turbulence production is discussed and shown that the turbulence kinetic energy decays up to a constant value as time becomes infinitely large, i.e., for isotropy, dissipation inhibits the production process and if mean u-squared is greater than mean v-squared initially then dissipation causes reduction in anisotropy.

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