Three-dimensional heat and mass transfer flow of a viscous fluid with periodic suction velocity

Singh, Ajay Kumar and Takhar, Harmindar S. (2007) Three-dimensional heat and mass transfer flow of a viscous fluid with periodic suction velocity. International journal of fluid mechanics research, 34 (3). pp. 267-286. ISSN 1064-2277

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Abstract

In this paper, three-dimensional unsteady free convection and mass transfer flow of an incompressible, viscous liquid through a porous medium past an infinite vertical porous plate is presented. It is considered that the plate is subjected to a time-dependent periodic suction velocity normal to the plate. Approximate solutions for the velocity, temperature, and concentration fields are obtained by using the series expansion method and considering ε as a reference parameter. Expressions for the skin friction, rate of heat transfer, and mass transfers are also derived. The results obtained are discussed for the cooling and heating cases of the porous plate.