MODELING OF TURBULENT FLOWS WITH A SURFACE-PLACED OBSTACLE AND A LINE SOURCE OF PASSIVE SCALAR

Kurbatskii, Albert F.; Yakovenko, Sergey N.

Turbulence and Shear Flow Phenomena -1 First International Symposium

ISBN 打印: 1-56700-135-1

MODELING OF TURBULENT FLOWS WITH A SURFACE-PLACED OBSTACLE AND A LINE SOURCE OF PASSIVE SCALAR

Albert F. Kurbatskii Institute of Theoretical and Applied Mechanics of Russian Academy of Sciences, Siberian Branch, Novosibirsk State University, 630090 Novosibirsk, Russia

Sergey N. Yakovenko Khristianovich Institute of Theoretical and Applied Mechanics SB RAS, Institutskaya Street, 4/1, Novosibirsk 630090, Russia

Abstract

Results of modeling a turbulent flow around a two-dimensional surface-placed obstacle of square cross-section have been obtained. Possibilities of algebraic and differential second-order models have been studied for the cases of a channel flow with a rib and turbulent boundary layer on a plate with a line source of passive contaminant. Scalar diffusion from the source in a flow behind a backward-facing step and in the boundary layer with the obstacle has been calculated.

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