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      Permanent link:
      https://www.ias.ac.in/article/fulltext/pmsc/107/02/0213-0220

    • Keywords

       

      RT instability; flow past porous media; Brinkmann model; Saffmann boundary condition

    • Abstract

       

      The Rayleigh-Taylor (RT) instability at the interface between fluid and fluid saturated sparsely packed porous medium has been investigated making use of boundary layer approximation and Saffmann [8] boundary condition. An analytical solution for dispersion relation is obtained and is numerically evaluated for different values of the parameters. It is shown that RT instability can be controlled by a suitable choice of the thickness of porous layer, ratio of viscosities and the slip parameter.

    • Author Affiliations

       

      N Rudraiah1 B S Krishnamurthy1 2 T Masuoka1 3

      1. UGC-DSA Centre in Fluid Mechanics, Department of Mathematics, Bangalore University, Central College Campus, Bangalore - 560001, India
      2. Department of Physics, Gulbarga University, Gulbarga - 585 106, India
      3. Department of Mechanical Engineering, Kitakushu Institute of Technology, Japan

    • Dates

       
      Published
      May 1997
      Manuscript received
      2 July 1996
      Manuscript revised
      14 December 1996
      Final version published online
      1 May 1997

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