Instability of Vertical Throughflows in Bidisperse Porous Media
Keyword(s):
In this paper, the instability of a vertical fluid motion, or throughflow, is investigated in a horizontal bidisperse porous layer that is uniformly heated from below. By means of the order-1 Galerkin approximation method, the critical Darcy–Rayleigh number for the onset of steady instability is determined in closed form. The coincidence between the linear instability threshold and the global nonlinear stability threshold, in the energy norm, is shown.
2018 ◽
Vol 474
(2213)
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pp. 20180018
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2017 ◽
Vol 18
(2)
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pp. 196-211
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Keyword(s):
2019 ◽
Vol 475
(2227)
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pp. 20190206
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2005 ◽
Vol 462
(2066)
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pp. 409-418
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2007 ◽
Vol 464
(2089)
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pp. 83-98
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