TU Darmstadt / ULB / TUbiblio

Hydromagnetic rotating flow of a fourth-order fluid past a porous plate

Wang, Yongqi and Hayat, Tasawar (2004):
Hydromagnetic rotating flow of a fourth-order fluid past a porous plate.
In: Mathematical Methods in the Applied Sciences, John Wiley and Sons, pp. 477-496, 27, (4), ISSN 0170-4214,
DOI: 10.1002/mma.469,
[Article]

Abstract

The rotating flow in the presence of a magnetic field is a problem belonging to hydromagnetics and deserves to be more widely studied than it has been to date. In the non-linear regime the literature is scarce. We develop the governing equations for the unsteady hydromagnetic rotating flow of a fourthorder fluid past a porous plate. The steady flow is governed by a boundary value problem in which the order of differential equations is more than the number of available boundary conditions. It is shown that by augmenting the boundary conditions based on asymptotic structures at infinity it is possible to obtain numerical solutions of the nonlinear hydromagnetic equations. Effects of uniform suction or blowing past the porous plate, exerted magnetic field and rotation on the flow phenomena, especially on the boundary layer structure near the plate, are numerically analysed and discussed. The flow behaviours of the Newtonian fluid and second-, third- and fourth-order non-Newtonian fluids are compared for the special flow problem, respectively.

Item Type: Article
Erschienen: 2004
Creators: Wang, Yongqi and Hayat, Tasawar
Title: Hydromagnetic rotating flow of a fourth-order fluid past a porous plate
Language: English
Abstract:

The rotating flow in the presence of a magnetic field is a problem belonging to hydromagnetics and deserves to be more widely studied than it has been to date. In the non-linear regime the literature is scarce. We develop the governing equations for the unsteady hydromagnetic rotating flow of a fourthorder fluid past a porous plate. The steady flow is governed by a boundary value problem in which the order of differential equations is more than the number of available boundary conditions. It is shown that by augmenting the boundary conditions based on asymptotic structures at infinity it is possible to obtain numerical solutions of the nonlinear hydromagnetic equations. Effects of uniform suction or blowing past the porous plate, exerted magnetic field and rotation on the flow phenomena, especially on the boundary layer structure near the plate, are numerically analysed and discussed. The flow behaviours of the Newtonian fluid and second-, third- and fourth-order non-Newtonian fluids are compared for the special flow problem, respectively.

Journal or Publication Title: Mathematical Methods in the Applied Sciences
Volume: 27
Number: 4
Publisher: John Wiley and Sons
Uncontrolled Keywords: fourth-order fluid; non-Newtonian fluid; hydromagnetic rotating flow
Divisions: 16 Department of Mechanical Engineering
16 Department of Mechanical Engineering > Fluid Dynamics (fdy)
Date Deposited: 23 Aug 2011 14:58
DOI: 10.1002/mma.469
Export:
Suche nach Titel in: TUfind oder in Google

Optionen (nur für Redakteure)

View Item View Item