Natural convection driven by buoyancy and surface tension forces under external magnetic field
Abstract
Twodimensional natural convection driven both by buoyancy and surface tension forces in the horizontal layer of an electrically conducting liquid which is subjected to a horizontal temperature gradient and a vertical magnetic field is studied theoretically. The flow and temperature distribution in the liquid layer is analyzed for two cases: (1) the top surface is free and the bottom is a rigid wall, and (2) both the surfaces are rigid. The effect of the magnetic field on the flow velocity and the temperature distribution is made clear and the simple expressions are obtained for two extreme cases of the sufficiently large magnetic field and the small magnetic field. Furthermore, the frequency response of the velocity field to the oscillation of the gravitational acceleration is analyzed and the effect of the magnetic field on the frequency response is obtained.
 Publication:

Applied Microgravity Technology
 Pub Date:
 February 1988
 Bibcode:
 1988ApMT....1...77M
 Keywords:

 Free Convection;
 Interfacial Tension;
 Magnetic Effects;
 Marangoni Convection;
 Microgravity Applications;
 Buoyancy;
 Conducting Fluids;
 Frequency Response;
 Magnetohydrodynamic Flow;
 Space Commercialization;
 Space Processing;
 Temperature Distribution;
 Velocity Distribution;
 Wall Flow;
 Fluid Mechanics and Heat Transfer