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# International Journal of Applied Mechanics and Engineering

### The Journal of University of Zielona Góra

Editor-in-Chief: Walicki, Edward

4 Issues per year

CiteScore 2016: 0.12

SCImago Journal Rank (SJR) 2016: 0.127
Source Normalized Impact per Paper (SNIP) 2016: 0.063

Open Access
Online
ISSN
2353-9003
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Volume 21, Issue 3

# Span-Wise Fluctuating MHD Convective Flow of a Viscoelastic Fluid through a Porous Medium in a Hot Vertical Channel with Thermal Radiation

K.D. Singh
Published Online: 2016-09-10 | DOI: https://doi.org/10.1515/ijame-2016-0040

## Abstract

An unsteady mixed convection flow of a visco-elastic, incompressible and electrically conducting fluid in a hot vertical channel is analyzed. The vertical channel is filled with a porous medium. The temperature of one of the channel plates is considered to be fluctuating span-wise cosinusoidally, i.e., $T*(y*,z*,t*)=T1+(T2−T1)cos⁡(πz*d−ω*t*)$ . A magnetic field of uniform strength is applied perpendicular to the planes of the plates. The magnetic Reynolds number is assumed very small so that the induced magnetic field is neglected. It is also assumed that the conducting fluid is gray, absorbing/emitting radiation and non-scattering. Governing equations are solved exactly for the velocity and the temperature fields. The effects of various flow parameters on the velocity, temperature and the skin friction and the Nusselt number in terms of their amplitudes and phase angles are discussed with the help of figures.

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Revised: 2016-06-15

Published Online: 2016-09-10

Published in Print: 2016-08-01

Citation Information: International Journal of Applied Mechanics and Engineering, Volume 21, Issue 3, Pages 667–681, ISSN (Online) 2353-9003, ISSN (Print) 1734-4492,

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