Numerical Study of a New Model for the Magnetohydrodynamic Flow of Micropolar Magnetic Fluids in Straight Square Ducts

2009 ◽  
Author(s):  
P.K. Papadopoulos ◽  
P. Vafeas ◽  
P.M. Hatzikonstantinou
Keyword(s):  
Numerical Study ◽  
Magnetic Fluids ◽  
Magnetohydrodynamic Flow ◽  
New Model ◽  
Square Ducts

Topological analysis of separation phenomena in liquid metal flow in sudden expansions. Part 2. Magnetohydrodynamic flow

2011 ◽  
Vol 674 ◽  
pp. 132-162 ◽  
Author(s):  
C. MISTRANGELO
Keyword(s):  
Magnetic Field ◽  
Liquid Metal ◽  
Scaling Laws ◽  
Numerical Study ◽  
Topological Analysis ◽  
Metal Flow ◽  
Magnetohydrodynamic Flow ◽  
Sudden Expansion ◽  
Internal Layers ◽  
Flow Topology

A numerical study has been carried out to analyse liquid metal flows in a sudden expansion of electrically conducting rectangular ducts under the influence of an imposed uniform magnetic field. Separation phenomena are investigated by selecting a reference Reynolds number and by increasing progressively the applied magnetic field. The magnetic effects leading to the reduction of the size of separation zones that form behind the cross-section enlargement are studied by considering modifications of flow topology, streamline patterns and electric current density distribution. In the range of parameters investigated, the magnetohydrodynamic flow undergoes substantial transitions from a hydrodynamic-like flow to one dominated by electromagnetic forces, where the influence of inertia and viscous forces is confined to thin internal layers aligned with the magnetic field and to boundary layers that form along the walls. Scaling laws describing the reattachment length and the pressure drop in the sudden expansion are derived for intense magnetic fields.

Numerical study of entropy analysis for electrical unsteady natural magnetohydrodynamic flow of nanofluid and heat transfer

2017 ◽  
Vol 55 (5) ◽  
pp. 1821-1848 ◽  
Author(s):  
Yahaya Shagaiya Daniel ◽  
Zainal Abdul Aziz ◽  
Zuhaila Ismail ◽  
Faisal Salah
Keyword(s):  
Heat Transfer ◽  
Numerical Study ◽  
Magnetohydrodynamic Flow ◽  
Entropy Analysis

Experimental and numerical study of electrically driven magnetohydrodynamic flow in a modified cylindrical annulus. I. Base flow

2015 ◽  
Vol 27 (7) ◽  
pp. 077101 ◽  
Author(s):  
Zacharias Stelzer ◽  
David Cébron ◽  
Sophie Miralles ◽  
Stijn Vantieghem ◽  
Jérôme Noir ◽  
...  
Keyword(s):  
Numerical Study ◽  
Base Flow ◽  
Magnetohydrodynamic Flow ◽  
Cylindrical Annulus

A Numerical Study of Rayleigh-Taylor Instability in Magnetic Fluids

1995 ◽  
Vol 453 ◽  
pp. 332 ◽  
Author(s):  
Byung-Il Jun ◽  
Michael L. Norman ◽  
James M. Stone
Keyword(s):  
Numerical Study ◽  
Magnetic Fluids ◽  
Taylor Instability ◽  
Rayleigh Taylor Instability
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