Details

Autor(en) / Beteiligte

• Pal, Dulal

Titel

Mixed convection heat transfer in the boundary layers on an exponentially stretching surface with magnetic field

Ist Teil von

• Applied mathematics and computation, 2010-11, Vol.217 (6), p.2356-2369

Ort / Verlag

Amsterdam: Elsevier Inc

Erscheinungsjahr

2010

Quelle

Elsevier ScienceDirect Journals

Beschreibungen/Notizen

• An analysis has been carried out to describe mixed convection heat transfer in the boundary layers on an exponentially stretching continuous surface with an exponential temperature distribution in the presence of magnetic field, viscous dissipation and internal heat generation/absorption. Approximate analytical similarity solutions of the highly non-linear momentum and energy equations are obtained. The present results are found to be in excellent agreement with previously published work on various special cases of the problem. Numerical results for temperature distribution and the local Nusselt number have been obtained for different values of the governing parameters. The numerical solutions are obtained by considering an exponential dependent stretching velocity and prescribed boundary temperature on the flow directional coordinate. The effects of various physical parameters like Prandtl number, Hartman number, Grashof number on dimensionless heat transfer characteristics are discussed in detail. In particular, it has been found that increase in Prandtl number decreases the skin-friction coefficient at the stretching surface, while increase in the strength of the magnetic field leads to increase in the local Nusselt number.