Invariant Solutions for the Unsteady Magnetohydrodynamics (MHD) Flow of a Fourth-Grade Fluid Induced Due to the Impulsive Motion of a Flat Porous Plate
Document title: Invariant Solutions for the Unsteady Magnetohydrodynamics (MHD) Flow of a Fourth-Grade Fluid Induced Due to the Impulsive Motion of a Flat Porous Plate
Journal: Brazilian journal of physics
Database: PERIÓDICA
System number: 000385168
ISSN: 0103-9733
Authors: 1
1
1
Institutions: 1University of the Witwatersrand, School of Computational and Applied Mathematics, Johannesburgo, Transvaal. Sudáfrica
Year:
Season: Feb
Volumen: 45
Number: 1
Pages: 120-131
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Experimental, aplicado
English abstract An analysis is carried out to study the timedependent flow of an incompressible electrically conducting fourth-grade fluid over an infinite porous plate. The flow is caused by the motion of the porous plate in its own plane with an impulsive velocity V (t). The governing nonlinear problem is solved by invoking the Lie group theoretic approach and a numerical technique. Travelling wave solutions of the forward and backward type, together with a steady state solution, form the basis of our analytical analysis. Further, the closed-form solutions are also compared against numerical results. The essential features of the embedded parameters are described. In particular, the physical significance o
Disciplines: Física y astronomía
Keyword: Dinámica de fluidos,
Fluídos de cuarto grado,
Magnetohidrodinámica,
Ondas viajeras,
Placa porosa
Keyword: Physics and astronomy,
Fluid dynamics,
Fourth grade fluids,
Magnetohydrodynamics,
Travelling waves,
Porous plate
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