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Mixed convection in a two-dimensional buoyant plume

Published online by Cambridge University Press:  20 April 2006

Noor Afzal
Noor Afzal
Affiliation:
Department of Mechanical Engineering, Aligarh Muslim University, Aligarh, India
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Abstract

The mixed convection in a two-dimensional line heat source is studied for the situations where buoyancy effects are favourable or adverse with respect to the oncoming vertical stream. The problem is analysed in terms of two co-ordinate expansions, direct and inverse, valid for small and large values of streamwise distance from the heat source. The solution for the first eleven and seven terms in direct and inverse co-ordinate expansions, respectively, are obtained. The direct expansion, when suitably transformed by Euler transformation and other techniques, predicts the velocity and temperature to two-digit accuracy for all values of streamwise coordinates, with a maximum error of 0·1% for velocity, 0·8% for temperature and 2·2% for displacement thickness far downstream from the source.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 105 , April 1981 , pp. 347 - 368
Copyright
© 1981 Cambridge University Press

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