Paper Information

Journal:   JOURNAL OF APPLIED FLUID MECHANICS (JAFM)   2016 , Volume 9 , Number 5; Page(s) 2195 To 2204.
 
Paper: 

FLOW OF GENERALIZED BURGERS' FLUID BETWEEN SIDE WALLS INDUCED BY SAWTOOTH PULSES STRESS

 
 
Author(s):  SULTAN Q.*, NAZAR M.
 
* CENTRE FOR ADVANCED STUDIES IN PURE AND APPLIED MATHEMATICS, BAHAUDDIN ZAKARIYA UNIVERSITY, MULTAN, 60800, PAKISTAN
 
Abstract: 

This paper presents the unsteady magnetohydrodynamic (MHD) flow of a generalized Burgers' fluid between two parallel side walls perpendicular to a plate. The flow is generated from rest at timet = 0+ induced by sawtooth pulses stress applied to the bottom plate. The solutions obtained by means of the Laplace and the Fourier cosine and sine transforms in this order are presented as a sum between the corresponding Newtonian and non-Newtonian contributions. We investigate the effect of magnetic field and permeability on the fluid motion by a numerical procedure for the inverse Laplace transform, namely Stehfest's algorithm. Moreover, the influence of side walls on the fluid motion, the effect of pulse period, magnetic and porosity parameters and material parameters is presented by graphical illustrations.

 
Keyword(s): GENERALIZED BURGERS' FLUID, SAWTOOTH PULSES STRESS, MHD FLOW, POROUS MEDIUM
 
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