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Calculation of axisymmetric jets and wakes with a three-equation model of turbulence

Published online by Cambridge University Press:  12 April 2006

Sedat Biringen
Sedat Biringen
Affiliation:
Von Kármán Institute, Rhode-St-Genèse, Belgium Present address: Mechanical Engineering Department, Bogaziçi University, P.K. 2, Bebek, Istanbul, Turkey.
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Abstract

The concept of diffusion by bulk convection formulated by Bradshaw is applied to the transport equations for the turbulent kinetic energy, turbulent shear stress and an integral length scale. The resulting set of hyperbolic partial differential equations is solved by an explicit finite-difference scheme for the cases of incompressible axisymmetric wakes and jets in a coflowing air stream. It is found that the profiles of mean velocity and shear stress are almost insensitive to the empirical input whereas the profiles of kinetic energy are very sensitive.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 86 , Issue 4 , 28 June 1978 , pp. 745 - 759
Copyright
© 1978 Cambridge University Press

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