Unsteady nonsimilar compressible laminar two-dimensional and axisymmetric boundary-layer flows |
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Authors: | Miss R. Vasantha Prof. G. Nath |
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Affiliation: | (1) Department of Applied Mathematics, Indian Institute of Science, 560012 Bangalore, India |
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Abstract: | Summary Unsteady nonsimilar laminar compressibletwo-dimensional and axisymmetric boundarylayer flows have been studied when external velocity varies arbitrarily with time and the flow is nonhomentropic. The governing nonlinear partial differential equations with three independent variables have been solved using an implicit finite difference scheme with quasilinearization technique from the origin to the point of zero skin-friction. The results have been obtained for (i) an accelerating stream and (ii) a fluctuating stream. The skin friction responds to the fluctuations in the free stream more compared to the heat transfer. It is observed that Mach number and hot wall cause the point of zero skin friction to occur earlier whereas cold wall delays it.With 16 Figures |
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