Mixed Convection Unsteady Stagnation-Point Flow towards a Stretching Sheet with Slip Effects

Hui Chen

Mathematical Problems in Engineering, 2014, vol. 2014, 1-7

Abstract:

The paper studies the unsteady mixed convection flow of an incompressible viscous fluid about a stagnation point on a stretching sheet in presence of velocity and thermal slips. The governing equations are transformed into the ordinary differential equations by using similarity transformations. The transformed equations are solved numerically by an efficient shooting method. The characteristics of the flow and heat transfer features for governing parameters are analyzed and discussed for both the assisting and opposing flows. It is found that dual solutions exist for certain range of buoyancy parameter which again depend on the unsteadiness parameter and the slip parameters (i.e., and ). The numerical results show that the increase of unsteadiness parameter and the slip effects cause increment in the existence range of similarity solution. The effects of unsteadiness parameter, the velocity ratio parameter, and the velocity and thermal slip parameters on the velocity and temperature distributions are analyzed and discussed.

Date: 2014
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jnlmpe:435697

DOI: 10.1155/2014/435697

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