Control of Rayleigh-Benard convection in small aspect ratio containers

Journal Article

If the temperature gradient across a horizontal fluid layer is great enough, Rayleigh-Benard convection (RBC) is initiated and thermal transport is increased. Eliminating RBC at higher than critical temperature gradient would allow these gradients to be maintained at lower energy cost. Conversely, causing convection to occur at a lower thermal gradient would allow greater thermal transport at lower temperatures. In any case, controlling RBC would optimize many processes involving thermal gradients across fluids. Thus, the active suppression or enhancement of convection through selective perturbation of the thermal boundary conditions was investigated by considering a bulk fluid contained within a 2:1:1 rectangular cell.

Duke Authors

Cited Authors

  • Gustafson, MR; Howle, LE

Published Date

  • December 1, 1995

Published In

  • American Society of Mechanical Engineers, Fluids Engineering Division (Publication) Fed

Volume / Issue

  • 216 /

Start / End Page

  • 77 - 81

Citation Source

  • Scopus