Convection in Porous Media by Donald A. Nield, Adrian Bejan

By Donald A. Nield, Adrian Bejan

This up to date version of a generally sought after textual content presents a straightforward creation to the sphere that calls for merely regimen arithmetic. The booklet starts off with the weather of fluid mechanics and warmth move, and covers a variety of purposes from fibrous insulation and catalytic reactors to geological strata, nuclear waste disposal, geothermal reservoirs, and the garage of heat-generating fabrics. because the common reference within the box, this publication should be necessary to researchers and training engineers, whereas last an obtainable advent for graduate scholars and others coming into the sphere. the recent version gains 2700 new references masking a couple of speedily increasing fields, together with the warmth move houses of nanofluids and functions concerning neighborhood thermal non-equilibrium and microfluidic effects.

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40) is the fraction of the total volume occupied by the a-phase. 5. 42) and note that in the other phases \jf aand Xa are zero. 46) Transport theorem: \ja'l'a) at -- ~( at 'I' a )_V-I JAa \jfW a . 47) whereA a denotes the interfaces between the

Further theoretical and experimental work is desirable, but the indications are that turbulence may change the values of drag coefficients from their laminar flow values but will not qualitatively change convective flows in porous media except when the porosity is high. If the effect of turbulence is to increase the drag, then we would expect the heat transfer to be reduced, contrary to the prediction of Rudraiah (1988). 22 1. 9. Fractured Media, Deformable Media, and Complex Porous Structures The subject of flow in fractured media is an important one in the geological context.

This leads to overprediction of the extent to which motion induced in the clear fluid is transmitted to the porous medium. The availability of the empirical constant

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