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Fluctuating flow of a Maxwell fluid past a porous plate with variable suction

Wang, Yongqi and Hayat, Tasawar :
Fluctuating flow of a Maxwell fluid past a porous plate with variable suction.
[Online-Edition: http://www.sciencedirect.com/science/article/pii/S1468121807...]
In: Nonlinear Analysis: Real World Applications, 9 (4) pp. 1269-1282. ISSN 1468-1218
[Article] , (2008)

Official URL: http://www.sciencedirect.com/science/article/pii/S1468121807...

Abstract

The problem dealing with the two-dimensional flow of an incompressible viscoelastic Maxwell fluid past an infinite porous plate is investigated. It is assumed that the suction velocity is normal to the plate and oscillates about a mean value. The external free-stream velocity varies periodically in time. The resulting differential equation subject to the relevant boundary and initial conditions is numerically solved by means of a numerical technique, in which a coordinate transformation is employed to transform the semi-infinite physical space to a bounded computational domain. The effects of various values of the emerging parameters, e.g. the elasticity parameter, the oscillation amplitude and frequency of the external flow and the suction velocity, on the time series of velocity, especially on the boundary-layer structure near the plate, are discussed. The nature of the shear stress engendered due to the flow is also investigated.

Item Type: Article
Erschienen: 2008
Creators: Wang, Yongqi and Hayat, Tasawar
Title: Fluctuating flow of a Maxwell fluid past a porous plate with variable suction
Language: English
Abstract:

The problem dealing with the two-dimensional flow of an incompressible viscoelastic Maxwell fluid past an infinite porous plate is investigated. It is assumed that the suction velocity is normal to the plate and oscillates about a mean value. The external free-stream velocity varies periodically in time. The resulting differential equation subject to the relevant boundary and initial conditions is numerically solved by means of a numerical technique, in which a coordinate transformation is employed to transform the semi-infinite physical space to a bounded computational domain. The effects of various values of the emerging parameters, e.g. the elasticity parameter, the oscillation amplitude and frequency of the external flow and the suction velocity, on the time series of velocity, especially on the boundary-layer structure near the plate, are discussed. The nature of the shear stress engendered due to the flow is also investigated.

Journal or Publication Title: Nonlinear Analysis: Real World Applications
Volume: 9
Number: 4
Publisher: Elsevier Science
Uncontrolled Keywords: Maxwell fluid; Non-Newtonian fluid; Fluctuating flow; Variable suction
Divisions: 16 Department of Mechanical Engineering > Fluid Dynamics (fdy)
16 Department of Mechanical Engineering
Date Deposited: 24 Aug 2011 18:11
Official URL: http://www.sciencedirect.com/science/article/pii/S1468121807...
Additional Information:

doi:10.1016/j.nonrwa.2007.02.016

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