Heat and Mass Transport

In this chapter, our primary objective is to construct models of heat transport in porous media. However, since advection (with a fluid moving through the void space), is one of the transport modes, any heat transport model must treat, simultaneously, also the transport of fluid(s) mass. As we shall see below, the coupling between the transport of these two extensive quantities is due also to the fact that both the fluid’s density, and, perhaps, more so, its viscosity, depend on the temperature.