Effect of longitudinal surface curvature on boundary layers

Narasimha, Roddam ; Ojha, S. K. (1967) Effect of longitudinal surface curvature on boundary layers Journal of Fluid Mechanics, 29 (1). pp. 187-199. ISSN 0022-1120

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Official URL: http://journals.cambridge.org/abstract_S0022112067...

Related URL: http://dx.doi.org/10.1017/S0022112067000710


We consider here the higher order effect of moderate longitudinal surface curvature on steady, two-dimensional, incompressible laminar boundary layers. The basic partial differential equations for the problem, derived by the method of matched asymptotic expansions, are found to possess similarity solutions for a family of surface curvatures and pressure gradients. The similarity equations obtained by this anaylsis have been solved numerically on a computer, and show a definite decrease in skin friction when the surface has convex curvature in all cases including zero pressure gradient. Typical velocity profiles and some relevant boundary-layer characteristics are tabulated, and a critical comparison with previous work is given.

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Deposited On:29 Nov 2010 08:45
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