Ferrohydrodynamic boundary layers
Abstract
Since ferroliquids are opaque, diagnostics will require the insertion of probes into the flow, so some theory is developed here to provide insight into whether such probes are likely to significantly affect the flow. Boundary layers are analyzed, with emphasis on the question of separation. Simplified boundary layer equations are derived, which are identical to those governing convection boundary layers for which viscous dissipation is neglected and the Boussinesq approximation is adopted. Changes in location of the separation point with the magnetic field strength at the wall are plotted for a particular flow, and it is shown that separation can only be completely suppressed in the limit of infinite wall magnetic field. Negative values of this parameter can promote separation.
 Publication:

Thermomechanics of Magnetic Fluids: Theory and applications
 Pub Date:
 1978
 Bibcode:
 1978tmft.proc..213B
 Keywords:

 Boundary Layer Separation;
 Ferrofluids;
 Viscous Flow;
 Boundary Layer Equations;
 Boundary Layer Flow;
 Convective Flow;
 Hydrodynamics;
 Magnetic Field Configurations;
 Magnetic Flux;
 Opacity;
 Optical Properties;
 Fluid Mechanics and Heat Transfer