Effect of magnetic Reynolds number on the two-dimensional hydromagnetic flow around a cylinder

Numerical experiments have been conducted to study the effect of magnetic Reynolds number on the steady, two‐dimensional, viscous, incompressible and electrically conducting flow around a circular cylinder. Besides usual Reynolds number Re, the flow is governed by the magnetic Reynolds number Rm and...

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Bibliographic Details
Published inInternational journal for numerical methods in fluids Vol. 59; no. 12; pp. 1351 - 1368
Main Authors Sekhar, T. V. S., Sivakumar, R., Ravi Kumar, T. V. R.
Format Journal Article
LanguageEnglish
Published Chichester, UK John Wiley & Sons, Ltd 30.04.2009
Wiley
Subjects
Computational methods in fluid dynamics
drag coefficient
Exact sciences and technology
Flow control
flow-separation
Fluid dynamics
full MHD
Fundamental areas of phenomenology (including applications)
magnetic Reynolds number
magnetohydrodynamics
Magnetohydrodynamics and electrohydrodynamics
Physics
flow-separation
Computational fluid dynamics
Flow separation
full MHD
Digital simulation
magnetohydrodynamics
Boundary conditions
MHD flow
Multigrid
Flow control
Circular cylinder
magnetic Reynolds number
Modelling
Incompressible fluid
Magnetic fields
Conducting fluid
Viscous fluids
Drag coefficient
Finite difference method
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Summary:Numerical experiments have been conducted to study the effect of magnetic Reynolds number on the steady, two‐dimensional, viscous, incompressible and electrically conducting flow around a circular cylinder. Besides usual Reynolds number Re, the flow is governed by the magnetic Reynolds number Rm and Alfvén number β. The flow and magnetic field are uniform and parallel at large distances from the cylinder. The pressure Poisson equation is solved to find the pressure fields in the entire flow region. The effects of the magnetic field and electrical conductivity on the recirculation bubble, drag coefficient, standing vortex and pressure are presented and discussed. For low interaction parameter (N<1), the suppression of the flow‐separation is nearly independent of the conductivity of the fluid, whereas for large interaction parameters, the conductivity of the fluid strongly influences the control of flow‐separation. Copyright © 2008 John Wiley & Sons, Ltd.
Bibliography:istex:8641AFB78DD1BD6BBD20658CC8E826B963505460
ark:/67375/WNG-X000NL9K-K
ArticleID:FLD1870
ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0271-2091
1097-0363
DOI:10.1002/fld.1870