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Journal of Porous Media

Publication de 12  numéros par an

ISSN Imprimer: 1091-028X

ISSN En ligne: 1934-0508

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THERMAL DIFFUSION AND DIFFUSION THERMO IMPACT ON CHEMICAL REACTED MHD FREE CONVECTION FROM AN IMPULSIVELY STARTED INFINITE VERTICAL PLATE EMBEDDED IN A POROUS MEDIUM USING FEM

Volume 20, Numéro 12, 2017, pp. 1097-1117
DOI: 10.1615/JPorMedia.v20.i12.40
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G. Jithender Reddy
Department of Mathematics, VNR Vignana Jyothi Institute of Engineering and Technology, Hyderabad, 500090, Telangana State, India
R. Srinivasa Raju
Department of Mathematics, GITAM University, Hyderabad Campus, Rudraram, Medak (Dt), 502329, Telangana State, India
J. Anand Rao
Department of Mathematics, Faculty of Science, Osmania University, Hyderabad, 500007, Telangana State, India

RÉSUMÉ

In this paper the influence of thermal diffusion (Soret) and diffusion thermo (Dufour) on an unsteady transient radiative MHD free convective heat transfer of a viscous, incompressible, and electrically conducting fluid past a suddenly started infinite vertical plate embedded in a porous medium is studied with the presence of a chemical reaction. The dimensionless governing, coupled, boundary layer partial differential equations (PDE's) are solved by an efficient finite element method (FEM) for velocity (u), temperature (θ), and concentration (φ) fields with the various thermophysical parameters for externally heating (Gr > 0) and cooling (Gr > 0) of the plate. Also from these computations, local skin friction, and rate of heat and mass transfer coefficients at the plate are obtained. The present results are in good agreement with earlier reported studies using the Laplace transform technique (LTT) and the present results are independent of mesh size.

MOTS CLÉS: heat and mass transfer, magnetohydrodynamic flows, thermal diffusion, diffusion thermo and finite element method
CITÉ PAR

  1. Prasad D.V. Krishna, Chaitanya G.S. Krishna, Raju R. Srinivasa, Double diffusive effects on mixed convection Casson fluid flow past a wavy inclined plate in presence of Darcian porous medium, Results in Engineering, 3, 2019. Crossref

  2. Sarada K., Malleswari D., Raju R. Srinivasa, Heat and mass transfer effects on chemical reacting fluid flow past an exponentially accelerated vertical plate, ADVANCES IN BASIC SCIENCE (ICABS 2019), 2142, 2019. Crossref

  3. Waqas H., Imran M., Khan S. U., Shehzad S. A., Meraj M. A., Slip flow of Maxwell viscoelasticity-based micropolar nanoparticles with porous medium: a numerical study, Applied Mathematics and Mechanics, 40, 9, 2019. Crossref

  4. Maddileti P., Raju R. Srinivasa, Behaviour of Casson fluid on MHD convective towards a vertical plate with heat and mass transfer effects, 3RD INTERNATIONAL CONFERENCE ON CONDENSED MATTER AND APPLIED PHYSICS (ICC-2019), 2220, 2020. Crossref

  5. Maddileti P., Raju R. Srinivasa, Effect of Casson fluid on radiating free convection flow past an impulsively started vertical plate: A Soret effect, 3RD INTERNATIONAL CONFERENCE ON CONDENSED MATTER AND APPLIED PHYSICS (ICC-2019), 2220, 2020. Crossref

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