Abonnement à la biblothèque: Guest
Portail numérique Bibliothèque numérique eBooks Revues Références et comptes rendus Collections
Journal of Porous Media
Facteur d'impact: 1.49 Facteur d'impact sur 5 ans: 1.159 SJR: 0.43 SNIP: 0.671 CiteScore™: 1.58

ISSN Imprimer: 1091-028X
ISSN En ligne: 1934-0508

Volumes:
Volume 22, 2019 Volume 21, 2018 Volume 20, 2017 Volume 19, 2016 Volume 18, 2015 Volume 17, 2014 Volume 16, 2013 Volume 15, 2012 Volume 14, 2011 Volume 13, 2010 Volume 12, 2009 Volume 11, 2008 Volume 10, 2007 Volume 9, 2006 Volume 8, 2005 Volume 7, 2004 Volume 6, 2003 Volume 5, 2002 Volume 4, 2001 Volume 3, 2000 Volume 2, 1999 Volume 1, 1998

Journal of Porous Media

DOI: 10.1615/JPorMedia.v17.i3.60
pages 255-265

COMPRESSIBILITY EFFECTS ON THE RAYLEIGH−TAYLOR INSTABILITY GROWTH BETWEEN TWO IMMISCIBLE FLUIDS THROUGH DARCY POROUS MEDIA

Gamal Hoshoudy
South valley Uni.

RÉSUMÉ

The influence of compressibility on the Rayleigh−Taylor instability problem of two fluids through porous media in the presence of surface tension is studied. A general dispersion relation has been obtained and analyzed for special cases and numerically has been discussed. The results have been compared with the previous work (incompressible and compressible case) of Livescu. For incompressible flow, the porosity of the lower layer plays a fundamental role in generating the happening stability, whereas for compressible flow, this role is attributed to the porosity of the upper layer. The growth rate for a compressible flow through porous media (the surface tension is constant) is bounded by the growth rates of the incompressible flows (classical case, from above) and the compressible case at the ratio of specific heat tending to infinity (γ → ∞, from below). Generally, the porosity beside the compressibility effect will bring about more stability on the growth rate of unstable configuration.


Articles with similar content:

Wake stability enhancement by mean of non-isothermal blowing
International Heat Transfer Conference 12, Vol.16, 2002, issue
Lionel Mathelin, Andre Lallemand, Francoise Bataille
THROUGHFLOW EFFECT ON WEAKLY NONLINEAR OSCILLATORY CONVECTION IN A VISCOELASTIC FLUID SATURATING POROUS MEDIUM UNDER TEMPERATURE MODULATION
Journal of Porous Media, Vol.20, 2017, issue 6
Beer S. Bhadauria
ABSOLUTE AND CONVECTIVE INSTABILITY OF CYLINDRICAL LIQUID JETS IN CO-FLOWING GAS STREAMS
Atomization and Sprays, Vol.8, 1998, issue 1
Xianguo Li, Jihua Shen
MAGNETO-ROTATIONAL CONVECTION FOR FERROMAGNETIC FLUIDS IN THE PRESENCE OF COMPRESSIBILITY AND HEAT SOURCE THROUGH A POROUS MEDIUM
Special Topics & Reviews in Porous Media: An International Journal, Vol.5, 2014, issue 4
Seema Sharma, V. Singh, Kapil Kumar
ANALYSIS OF WAVE PROPAGATION IN A BUBBLY LIQUID BASED ON A TWO-FLUID AND THREE-PRESSURE MODEL
Multiphase Science and Technology, Vol.17, 2005, issue 1-2
Shigeo Fujikawa, Ryu Egashira, Takeru Yano