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MHD flow and heat transfer over a stretching surface with prescribed wall temperature or heat flux

Kumari, Mahesh and Takhar, Harmindar S. and Nath, Girishwar (1990) MHD flow and heat transfer over a stretching surface with prescribed wall temperature or heat flux. Heat and mass transfer, 25 (6). pp. 331-336. ISSN 0947-7411

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Abstract

The flow and heat transfer over a stretching sheet with a magnetic field in an electrically conducting ambient fluid have been studied. The effects of the induced magnetic field and sources or sinks have been included in the analysis. Both non-isothermal wall and constant heat flux conditions have been considered. The governing equations have been solved numerically using a shooting method. It is observed that for the prescribed wall temperature the skin friction, induced magnetic field at the wall and heat transfer are enhanced due to the magnetic field, but in general, they reduce as the reciprocal of the magnetic Prandtl number increases. For constant heat flux case, the temperature at the wall reduces as the magnetic field increases, but it increases with the reciprocal of the magnetic Prandtl number. The heat transfer is strongly affected by the Prandtl number, wall temperature and sink. Whenm<−2 andPr>2.5 the unrealistic temperature distributions are encountered. The present analysis is more general than any previous investigation.

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