Titlebook: Convection in Porous Media; Donald A. Nield,Adrian Bejan Textbook 19992nd edition Springer-Verlag New York 1999 energy.fluid mechanics.hea

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Mass Transfer in a Porous Medium: Multicomponent and Multiphase Flows,The term “mass transfer” is used here in a specialized sense, namely the transport of a substance that is involved as a component (constituent, species) in a fluid mixture. An example is the transport of salt in saline water. As we shall see below, convective mass transfer is analogous to convective heat transfer.

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Internal Natural Convection: Heating from Below,We start with the simplest case, that of zero flow through the fluid-saturated porous medium.For an equilibrium state the momentum equation is satisfied if..

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Mechanics of Fluid Flow Through a Porous Medium,usual situation) or it undergoes small deformation. The interconnectedness of the void (the pores) allows the flow of one or more fluids through the material. In the simplest situation (“single-phase flow”) the void is saturated by a single fluid. In “two-phase flow” a liquid and a gas share the voi

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Heat Transfer Through a Porous Medium,the medium is isotropic, and where radiative effects, viscous dissipation, and the work done by pressure changes are negligible. Very shortly we shall assume that there is local thermal equilibrium so that .. = .. = ., where .. and .. are the temperatures of the solid and fluid phases, respectively.

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External Natural Convection,ortant. For small values of the Rayleigh number Ra, perturbation methods are appropriate. At large values of Ra thermal boundary layers are formed, and boundary layer theory is the obvious method of investigation. This approach forms the subject of much of this chapter. We follow, to a large extent,

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Double-Diffusive Convection,s that provide the driving buoyancy force are induced by the combined effects of temperature and species concentration nonuniformities present in the fluid saturated medium. The present chapter is guided by the review of Trevisan and Bejan (1990), which began by showing that the conservation stateme

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Convection with Change of Phase, matter how intense the heating or cooling effect. In the present chapter we turn our attention to situations in which a change of phase occurs, for example, melting or evaporation upon heating, and solidification or condensation upon cooling. These convection problems constitute a relatively new an