(8)Investigations of Soret, Joule and Hall effects on MHD rotating mixed convective flow past an infinite vertical porous plate
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M. Veera Krishna a,∗, B.V. Swarnalathamma b, Ali J. Chamkha c,d
a Department of Mathematics, Rayalaseema University, Kurnool, Andhra Pradesh 518007, India
b Department of Science and Humanities, Stanley College of Engineering & Technology for Women, Abids, Hyderabad, Telangana 500001, India
c Department of Mechanical Engineering, Prince Sultan Endowment for Energy and Environment, Prince Mohammad Bin Fahd University, Al-Khobar 31952, Saudi Arabia
d RAK Research and Innovation Center, American University of Ras Al Khaimah, 10021, United Arab Emirates
Received 23 March 2019; received in revised form 10 May 2019; accepted 10 May 2019
Available online 16 May 2019
Abstract
We made an elaborate scrutiny on the Soret and Joule effects of MHD mixed convective flow of an incompressible and electrically conducting viscous fluid past an infinite vertical porous plate taking Hall effects into account. Perturbation technique is used to solve the non-dimensional equations. The effects of the various non-dimensional parameters on velocity, temperature and concentration within the boundary layer are examined. Besides that, computational deliberations or discussions are also undertaken on the effects of the pertinent or significant parameters on the skin-friction coefficient and rates of heat and mass transfer in terms of the Nusselt and Sherwood numbers respectively. The concentration distribution increases with increase in Soret effect and decrease with increase in chemical reaction parameter. An increase in Prandtl number results to decrease the temperature distribution. Both the primary and secondary velocity components and temperature increases with increasing heat source parameter. Skin friction coefficient decreases with an increase in permeability parameter, whereas it shows reverse effect for thermal and mass Grashof numbers. Nusselt number increases with an increase in Prandtl number. Sherwood number reduces with increasing Soret number.
© 2019 Shanghai Jiaotong University. Published by Elsevier B.V.
http://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the CC BY-NC-ND license. ()
Keywords: Hall effects; Soret number; Porous medium; Joules dissipation; Chemical reaction.