WIT Press


Similarity Theory For Turbulent Flow Over Natural Rough Surface In Pressure And Temperature Gradients

Price

Free (open access)

Volume

14

Pages

10

Published

1996

Size

734 kb

Paper DOI

10.2495/AIR960281

Copyright

WIT Press

Author(s)

A.P. Trunev

Abstract

The similarity theory and the model of a turbulent flow over a natural large scale roughness in pressure and temperature gradients are presented in the paper. The general analytical results such as the logarithmic mean veloc- ity and temperature profiles for a turbulent flow over smooth and rough surfaces, the temperature and velocity profiles for a turbulent natural con- vection over a large scale roughness and the velocity defect law for the Ekman layer over a rough surface have been obtained. 1 Introduction The similarity theory was widely applied to solve the turbulent flow prob- lems including atmospheric problems (Brandt! [1], Monin & Obukhov [2], Zilitinkevich & Monin [3]). The usual application of the similarity the- ory concerns only the ave

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