Unsteady laminar incompressible second-order boundary-layer flow at a three-dimensional stagnation point

Kumari, M (1987) Unsteady laminar incompressible second-order boundary-layer flow at a three-dimensional stagnation point. In: Acta Mechanica, 66 (1-4). pp. 61-81.

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Abstract

The unsteadely laminar incompressible second-order boundary-layer flow at the stagnation point of a three-dimensional body has been studied for both nodal and saddle point regions. The effects of mass transfer and Prandtl number have been taken into account. The equations governing the flow have been solved numerically using an implicit finite-difference scheme. It has been found that the parameter characterizing the unsteadiness in the velocity of the free stream, the nature of the stagnation point, the mass transfer and Prandtl number strongly affect the second-order skin friction and heat transfer. The overall skin friction becomes less due to second-order effects but the heat transfer has the opposite behaviour. For large injection, the second-order skin-friction and heat-transfer results prevail over the first-order boundary layer results whereas for the case of large suction the behaviour is just the opposite.

Item Type:	Journal Article
Publication:	Acta Mechanica
Publisher:	Springer
Additional Information:	Copy right of this article belongs to Springer.
Department/Centre:	Division of Physical & Mathematical Sciences > Mathematics
Date Deposited:	11 Jan 2010 08:05
Last Modified:	19 Sep 2010 05:35
URI:	http://eprints.iisc.ac.in/id/eprint/21043

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