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International Journal of Fluid Mechanics Research
ESCI SJR: 0.22 SNIP: 0.446 CiteScore™: 0.5

ISSN Imprimir: 2152-5102
ISSN En Línea: 2152-5110

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International Journal of Fluid Mechanics Research

DOI: 10.1615/InterJFluidMechRes.v35.i1.10
pages 1-18

Chemical Reaction and Variable Viscosity Effects on MHD Mixed Convection Heat and Mass Transfer for Hiemenz Flow Over a Porous Wedge in the Presence of Suction or Injection

Ramasamy Kandasamy
Shree Venkateshwara Hi – Tech Engineering College, Anna University, Gobichettipalayam – 638455, Tamil Nadu, India.
Ishak Hashim
School of Mathematical Sciences & Solar Energy Research Institute, Faculty of Science & Technology, Universiti Kebangsaan Malaysia 43600 UKM Bangi, Selangor DE, Malaysia
Muhaimin
Centre for Science Studies, Universiti Tun Hussein Onn Malaysia, 86400 Parit Raja, Batu Pahat Johor, Malaysia

SINOPSIS

The effects of chemical reaction and variable viscosity on MHD mixed convection heat and mass transfer for Hiemenz flow over a porous wedge plate has been studied in the presence of suction or injection. The wall of the wedge is embedded in a uniform Darcian porous medium in order to allow for possible fluid wall suction or injection and has a power-law variation of both the wall temperature and concentration. An approximate numerical solution for the steady laminar boundary-layer flow over a wall of the wedge in the presence of species concentration and mass diffusion has been obtained by solving the governing equations using numerical technique. The fluid is assumed to be viscous and incompressible. Numerical calculations are carried out for different values of dimensionless parameters and an analysis of the results obtained shows that the flow field is influenced appreciably by the magnetic effect, chemical reaction, the buoyancy ratio between species and thermal diffusion and suction / injection at wall surface. Effects of these major parameters on the transport behaviors are investigated methodically and typical results are illustrated to reveal the tendency of the solutions. Representative results are presented for the velocity, temperature, and concentration distributions. Comparisons with previously published works are performed and excellent agreement between the results is obtained.


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