The influence of a fluid-porous interface on solar pond stability
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The linear instability of the gradient zone of a solar pond containing a fluidporous interface is investigated. It is found that the gradient zone can retain the same stability for lower values of the solute Rayleigh number with the introduction of a porous material compared with a purely fluid layer, whilst maintaining the same lower convective zone temperature. Interestingly, it is also shown that for certain parameter values the penetration of a porous medium into the gradient zone can cause the temperature of the lower convective zone to rise. However, for certain parameter ranges, when the fluid-porous interface is towards the top of the gradient zone, the solar pond can become highly unstable.
Hill , A A & Carr , M 2013 , ' The influence of a fluid-porous interface on solar pond stability ' Advances in Water Resources , vol. 52 , pp. 1-6 . https://doi.org/10.1016/j.advwatres.2012.08.009
Advances in Water Resources
This is an author version of an article published in Advances in Water Resources, available at http://www.sciencedirect.com
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