The Lorentz forces on an electrically conducting sphere in an alternating magnetic field

1996 ◽  
Vol 32 (2) ◽  
pp. 386-399 ◽  
Author(s):  
U.B. Sathuvalli ◽  
Y. Bayazitoglu
Keyword(s):  
Magnetic Field ◽  
Alternating Magnetic Field ◽  
Conducting Sphere ◽  
Electrically Conducting ◽  
Lorentz Forces

scholarly journals Magnetohydrodynamic entry flow for a plane channel in an axial magnetic field

1977 ◽  
Vol 80 (2) ◽  
pp. 209-221 ◽  
Author(s):  
Gerald P. D'Arcy ◽  
Philip S. Schmidt
Keyword(s):  
Magnetic Field ◽  
Axial Magnetic Field ◽  
Plane Channel ◽  
Magnetic Interaction ◽  
Wall Region ◽  
Mean Flow ◽  
Entry Length ◽  
Electrically Conducting ◽  
Lorentz Forces ◽  
The Magnetic Field

An integral solution is described for flow of an electrically conducting fluid in a plane channel in a magnetic field which is aligned with the direction of the mean flow. It is shown that the presence of the magnetic field retards the development of the velocity profile by producing Lorentz forces which oppose the movement of fluid from the viscous wall region to the core. Solutions are presented for the entry length as a function of the magnetic interaction parameter. Solutions are also given for the dependence of the frictional component of the pressure drop on the magnetic field strength. The transverse pressure gradient produced by Lorentz forces is discussed for a typical case.

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