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多孔介质期刊
影响因子: 1.061 5年影响因子: 1.151 SJR: 0.504 SNIP: 0.671 CiteScore™: 1.58

ISSN 打印: 1091-028X
ISSN 在线: 1934-0508

多孔介质期刊

DOI: 10.1615/JPorMedia.v3.i1.50
pages 61-68

Oscillatory Motion of a Viscoelastic Fluid over a Stretching Sheet in Porous Media

K. V. Prasad
Department of Mathematics, Central College Campus, Bangalore University, Bangalore, India
M Su8bhas Abel
Gulbarga University
Ambuja Joshi
Department of Mathematics, Gulbarga University, Gulbarga Karnataka, India

ABSTRACT

The effects of an oscillatory motion of a viscoelastic fluid over infinite stretching sheet in porous media have been studied. The surface absorbs the fluid with a porous medium, and the velocity oscillates depending on the stretching rate (b) and the vertical distance (z). Analytical expressions for the velocity and coefficient of skin friction have been studied, first by the perturbation technique and then by Taylor series method. The effect of viscoelastic parameter (K1), permeability parameter (K2), and the vertical distance (z) on the velocity and on the flow characteristics are discussed. The velocity of the viscoelastic fluid is found to decrease in the presence of porous media, as compared to the viscous fluid.


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