100 research outputs found
Low-Prandtl-number B\'enard-Marangoni convection in a vertical magnetic field
The effect of a homogeneous magnetic field on surface-tension-driven
B\'{e}nard convection is studied by means of direct numerical simulations. The
flow is computed in a rectangular domain with periodic horizontal boundary
conditions and the free-slip condition on the bottom wall using a
pseudospectral Fourier-Chebyshev discretization. Deformations of the free
surface are neglected. Two- and three-dimensional flows are computed for either
vanishing or small Prandtl number, which are typical of liquid metals. The main
focus of the paper is on a qualitative comparison of the flow states with the
non-magnetic case, and on the effects associated with the possible
near-cancellation of the nonlinear and pressure terms in the momentum equations
for two-dimensional rolls. In the three-dimensional case, the transition from a
stationary hexagonal pattern at the onset of convection to three-dimensional
time-dependent convection is explored by a series of simulations at zero
Prandtl number.Comment: 26 pages, 9 figure
COVID-19 and use of non-traditional masks: how do various materials compare in reducing the risk of infection for mask wearers?
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Towards convertability The sterling policy of the Conservative governments 1951-1958
SIGLEAvailable from British Library Document Supply Centre- DSC:DX95612 / BLDSC - British Library Document Supply CentreGBUnited Kingdo
ABNORMAL T LYMPHOPROLIFERATIVE DISORDER DEMONSTRATING IN VITRO SUPPRESSOR AND HELPER CHARACTERISTICS ASSOCIATED WITH CROHN'S DISEASE
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