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Unsteady nonsimilar two-dimensional and axisymmetric water boundary layers with variable viscosity and prandtl number

Eswara, AT and Nath, G (1994) Unsteady nonsimilar two-dimensional and axisymmetric water boundary layers with variable viscosity and prandtl number. In: International Journal of Engineering Science, 32 (2). 267-279 .

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Official URL: http://dx.doi.org/10.1016/0020-7225(94)90006-X

Abstract

The influence of temperature-dependent viscosity and Prandtl number on the unsteady laminar nonsimilar forced convection flow over two-dimensional and axisymmetric bodies has been examined where the unsteadiness and (or) nonsimilarity are (is) due to the free stream velocity, mass transfer, and transverse curvature. The partial differential equations governing the flow which involve three independent variables have been solved numerically using an implicit finite-difference scheme along with a quasilinearization technique. It is found that both the skin friction and heat transfer strongly respond to the unsteady free stream velocity distributions. The unsteadiness and injection cause the location of zero skin friction to move upstream. However, the effect of variable viscosity and Prandtl number is to move it downstream. The heat transfer is found to depend strongly on viscous dissipation, but the skin friction is little affected by it. In general, the results pertaining to variable fluid properties differ significantly, from those of constant fluid properties.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Elsevier science.
Department/Centre: Division of Physical & Mathematical Sciences > Mathematics
Date Deposited: 16 Apr 2011 12:16
Last Modified: 16 Apr 2011 12:16
URI: http://eprints.iisc.ernet.in/id/eprint/36927

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