Invariant Solutions for the Unsteady Magnetohydrodynamics (MHD) Flow of a Fourth-Grade Fluid Induced Due to the Impulsive Motion of a Flat Porous Plate
Título del documento: Invariant Solutions for the Unsteady Magnetohydrodynamics (MHD) Flow of a Fourth-Grade Fluid Induced Due to the Impulsive Motion of a Flat Porous Plate
Revista: Brazilian journal of physics
Base de datos: PERIÓDICA
Número de sistema: 000385168
ISSN: 0103-9733
Autores: 1
1
1
Instituciones: 1University of the Witwatersrand, School of Computational and Applied Mathematics, Johannesburgo, Transvaal. Sudáfrica
Año:
Periodo: Feb
Volumen: 45
Número: 1
Paginación: 120-131
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Experimental, aplicado
Resumen en inglés 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
Disciplinas: Física y astronomía
Palabras clave: 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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