International Journal of Engineering, Science and Mathematics
(IJMRA Publications)-
Peer Reviewed Refereed Journal
 

...

Pages: 112-116

Date of Publication: 09-Jan-2018

Unsteady MHD free Convective flow in a Rotating System with Soret Effect on nth order chemical reaction

Author: S.Anuradha1 K.Sasikala2

Category: Engineering, Science and Mathematics

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Abstract:

Investigations on an unsteady MHD free convective heat and mass transfer flow over a porous medium find variety of applications in modern metal-working processes and manufacturing processes. Some of the applications are the lamination, hot rolling, crystal growing, purification of molten metals, melt-spinning processes and wire drawing etc. From model studies on the Dufour and soret effect of MHD free convective flows have been made by several investigators. Raptis et al., (1985) obtained the unsteady free convection flow through a porous medium with a semi-infinite vertical porous plate [1]. Dursunkaya et al., (1992) investigated the steady natural convection from a vertical surface with the effects of diffusion-thermo and thermal-diffusion [2]. Kafoussias et al., (1995) reported the temperature dependent viscosity on mixed free-forced convective and mass transfer flow with thermal-diffusion and diffusion-thermo effects [3]. Lavanya et al., (2004) analyzed the two-dimensional steady MHD free convection flow along a vertical porous plate with thermal radiation, heat generation, viscous dissipation and chemical reaction, Dufour and Soret effects [4]. Alam and Rahman (2005) was established the on steady MHD free convective heat and mass transfer flow past a semi-infinite vertical porous plate with Dufour and Soret effects [5]. On numerical study of MHD combined free-forced convective and mass transfer flow past a semi-infinite vertical plate in the presence of dufour and soret effect was reported by Alam (2006) [6]. Alam et al., (2006) examined an unsteady MHD free convective flow past a vertical porous plate in a porous medium with the presence of heat and mass transfer effect [7]. Nazmul Islam and Mahmud Alam (2007) investigated the steady MHD free convection heat and and mass transfer fluid flow through a porous medium with thermal diffusion and diffusion thermo past a semi-infinite vertical porous plate in a rotating system [8]. Emmunuel et al., (2008) discussed the combined heat and mass transfer of a steady MHD convective and slip flow due to a rotating disk with the effects of Thermal-diffusion and diffusion thermos, viscous dissipation and ohmic heating [9]. Anjali Devi and Uma Devi (2011) studied the MHD slip flow with thermal radiation over a porous rotating infinite disk in the presence of Soret and Dufour effects [10]. Sharma and Borgohain (2014) explained the effects of Soret and Dufour on heat and mass transfer of a binary fluid mixture in porous medium over a rotating disk [11]. In view of the above studies, an investigation on Soret effect with nth order chemically

Keywords: Magnetohydronamics (MHD); Soret Effect; Rotating system; Thermal Diffusion; Chemical reaction;.