Journal
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
Volume 34, Issue 9-10, Pages 1041-1047Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.icheatmasstransfer.2007.05.006
Keywords
dielectric fluid; d.c. electric field; thermoelectroconvection; heat generation
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The combined effects of vertical d.c. electric field and uniform internal heat generation on the onset of convection in a horizontal poorly conducting dielectric fluid layer heated uniformly from below are investigated. The Galerkin method is used to solve the resulting eigenvalue problem. Parametric study is conducted to know the effects of varying electric Rayleigh number, R-e and dimensionless heat source strength, N-s. It is found that these two parameters exhibit a dual effect on the onset of natural convection; a result noticed in contrast to their effects when they are acting in isolation. (c) 2007 Elsevier Ltd. All rights reserved.
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