Critical Review of Fluid Flow Physics at Micro- to Nano‐scale Porous Media Applications in the Energy Sector

Table 2

Different flow regimes as a function of liquid/solid binding force.

Interaction between		Flux	Flow regime	Physics
Liquid-liquid	Liquid-solid
Low	Low	High	Flux independent of solid-fluid binding force and increases with decreasing temperature	Surface effects are weak with no liquid adsorption. Flux is dominated by the temperature-driven friction between the solid and the liquid
Low	High	Intermediate	Flux independent of temperature and dependent on solid-fluid binding force	Surface effects become strong and liquid adsorption starts to take place that results in increasing fluid density close to the solid surface
High	Low	Intermediate	Flux independent of solid-fluid interaction and increases with decreasing temperature	Surface effects are weak with no liquid adsorption. Flux is dominated by the temperature-driven friction between the solid and the liquid
High	High	Low	Flux independent of solid-fluid interaction and increases with increasing temperature	Surface effects become strong and liquid adsorption starts to take place that results in increasing fluid density close to the solid surface. Flux is enhanced with increasing temperature as it results in desorption of the fluid molecules that merge together with the bulk liquid