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Flow and Heat Transfer on a Continuous Flat Surface Moving in a Parallel Free Stream with Variable Fluid Properties
Author(s) -
Hassanien I.A.
Publication year - 1999
Publication title -
zamm ‐ journal of applied mathematics and mechanics / zeitschrift für angewandte mathematik und mechanik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.449
H-Index - 51
eISSN - 1521-4001
pISSN - 0044-2267
DOI - 10.1002/(sici)1521-4001(199911)79:11<786::aid-zamm786>3.0.co;2-n
Subject(s) - prandtl number , heat transfer , film temperature , mechanics , reynolds number , thermodynamics , boundary layer , heat transfer coefficient , churchill–bernstein equation , dimensionless quantity , thermal conductivity , materials science , flow (mathematics) , mathematics , nusselt number , physics , turbulence
Boundary layer flow and heat transfer on a continuous flat surface moving in a parallel free stream with variable fluid properties are investigated. The similarity solution is used to transform the problem under consideration into a boundary value problem of coupled ordinary differential equations. Numerical results are carried out for various values of the dimensionless parameters of the problem. The results have demonstrated that the assumption of constant properties may introduce severe errors in the prediction of surface friction factor and heat transfer rate. For the same Reynolds numbers, Prandtl numbers, heating parameter, temperature exponents for viscosity and thermal conductivity parameters, and the same velocity difference | U w — U ∞ |, larger skin friction, and heat transfer coefficient results for U w > U ∞ than for U w < U ∞ .