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Double stratification effects on heat and mass transfer in unsteady MHD nanofluid flow over a flat surface

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dc.contributor.author Mutuku, Winifred Nduku
dc.contributor.author Oluwole, Daniel Makinde
dc.date.accessioned 2017-10-10T07:58:27Z
dc.date.available 2017-10-10T07:58:27Z
dc.date.issued 2017
dc.identifier.citation Asia Pac. J. Comput. Engin. (2017) 4:2 DOI 10.1186/s40540-017-0021-2 en_US
dc.identifier.issn 2196-1166
dc.identifier.uri http://ir-library.ku.ac.ke/handle/123456789/17823
dc.description Research Article en_US
dc.description.abstract The focus of this work is to theoretically investigate the problem of double stratification on heat and mass transfer in an unsteady hydromagnetic boundary layer flow of a nanofluid over a flat surface. The model employed for the nanofluid transport equations incorporate the effects of Brownian motion and thermophoresis in the presence of thermal and solutal stratification. The governing nonlinear partial differential equations and their associated boundary conditions are initially transformed into dimensionless form by using similarity variables, before being solved numerically by employing the Runge–Kutta–Fehlberg fourth-order method with shooting technique. The effects of different controlling parameters, viz. solutal and thermal stratification, Lewis number, thermophoresis, Brownian motion, magnetic field and unsteadiness on the fluid velocity, temperature, skin friction coefficient, the local Nusselt number, and the local Sherwood number are graphically depicted and quantitatively discussed in detail taking into account the practical applications of each profile. It is noted that thermal stratification reduces the fluid temperature, while the solutal stratification reduces the nanoparticle concentration. en_US
dc.language.iso en en_US
dc.publisher SpringerOpen en_US
dc.subject Heat transfer en_US
dc.subject Mass transfer en_US
dc.subject Unsteady en_US
dc.subject MHD en_US
dc.subject Nanofluid en_US
dc.subject Double stratification en_US
dc.title Double stratification effects on heat and mass transfer in unsteady MHD nanofluid flow over a flat surface en_US
dc.type Article en_US


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