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Stability of Convection in a Vibrating Porous Layer

[+] Author Affiliations
S. Govender

University of Kwa-Zulu Natal, Durban, South Africa

Paper No. HT-FED2004-56488, pp. 335-340; 6 pages
  • ASME 2004 Heat Transfer/Fluids Engineering Summer Conference
  • Volume 1
  • Charlotte, North Carolina, USA, July 11–15, 2004
  • Conference Sponsors: Heat Transfer Division and Fluids Engineering Division
  • ISBN: 0-7918-4690-3 | eISBN: 0-7918-3740-8
  • Copyright © 2004 by ASME


The linear stability theory is used to investigate analytically the effects of vibration on convection in a homogenous porous layer heated from below. The gravitational field consists of a constant part and a sinusoidally varying part, which is tantamount to a vertically oscillating porous layer subjected to constant gravity. The linear stability results are presented for the specific case of low amplitude vibration for which it is shown that increasing the frequency of vibration stabilizes the convection.

Copyright © 2004 by ASME
Topics: Stability , Convection



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