Chapter 5: Physicochemical flow in porous media
Different from the simple Newtonian fluid in the classical flow theory of porous media, there will be some physical property changes and chemical reactions in the physicochemical flow process. These physical properties can be viscosity, surface tension, phase state, concentration, temperature, and so on. The flow problems mainly include non-Newtonian fluid flow, mass transfer by diffusion, and the multiphase and multicomponent fluid flow. In this chapter, we will introduce the flow characteristics and key parameters considered in the establishment of the mathematical model, so as to provide the basis to quantitatively describe the physicochemical flow problem in porous media.