Details for Paper Id: 117

Title: THERMAL STABILITY OF A FLUID LAYER IN A VARIABLE GRAVITATIONAL FIELD IN POROUS MEDIUM
Abstract: The instability of a heated layer of viscous fluid in porous medium confined between two horizontal planes and subjected to variables gravitational field varying spatially with height is investigated. For a layer confined between two stress free boundaries, irrespective of whether gravitational acceleration is increasing or decreasing with height. It is shown that (i) the principle of exchange of stabilities is valid, when it is heated from below, [ampersand] (ii) the layer is stable when it is heated from above. In the latter case, the complex growth rate of an arbitrary oscillatory mode lies out side of a circle whose radius depends on the
Keywords viscous fluid, Rayleigh Number
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Submission Time 2017-07-08 08:34:35
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