Multiphase systems

From Thermal-FluidsPedia

A multiphase system is one characterized by the simultaneous presence of several phases, the two-phase system being the simplest case. The analysis of multiphase systems can include consideration of multiphase flow and multiphase heat and mass transfer. Based on the phases that are involved in the system, phase change problems can be classified as: (1) solid-liquid phase change (melting and solidification), (2) solid-vapor phase change (sublimation and deposition), and (3) liquid-vapor phase change (boiling/evaporation and condensation).

• Basics

Overview and classifications.

• Governing Equations

Basics, integral formulation, differential formulation, claisfications of PDE and boundary conditions, boundary conditions at interfaces, and averaging formulation.

• Interfacial Phenomena

Surface tension, contact angle and wettability, phase equilibrium in microscale interfacial systems, instability, and numerical simulation of interfaces and free surfaces.

• Melting and Solidification

Classifications, boundary conditions at interface,exact solutions, integral approximate solution, numerical solution, binary system, and melting and solidification in porous media.

• Sublimation and Vapor Deposition

Sublimation and Chemical Vapor Deposition (CVD).

• Condensation

Basics, dropwise condensation, filmwise condensation, nongravitational condensate removal, film condensation in porous media, and forced convective condensation.

• Evaporation

Bascis, film evaporation, direct contact evaporation, microchannels and porous media.

• Boiling

Classification, pool boiling, boiling in porous media, and forced convective boiling.

• Two-Phase Flow

Flow Patterns, flow models, forced convective condensation, forced convective boiling, and micro- and minichannels.

• Porous Pedia

Basics, governing equations, multiphase transport, melting and solidification, condensation, eavporation, and boiling.

• Related Topics