Fundarmentalof two-phase flow s1 10-2 Summary of two-phase flow So called phase is existing form for matter. Generally, there are three phases solid, liquid and gas. Mixed flow of any two or more phases infusible matter called multiphase flow Multiphase flow is common phenomenon in nature, daily life and many project Such as cloud, fog, rain and snow phenomenon dirt in atmosphere, sand in river blood flow in organism; engine burning in boiler, generate electricity refrigerate, vaporize in distil flow in congeal cycle, oil, mine and transportation of natural gas, matter flowed in all kinds of stove pagoda in chemical production; mill run in mining industry, removing dirt in environment defense and so on 77 So called “phase”is existing form for matter. Generally, there are three phases solid,liquid and gas. Mixed flow of any two or more phases infusible matter called multiphase flow. Multiphase flow is common phenomenon in nature,daily life and many project.Such as cloud,fog, rain and snow phenomenon;dirt in atmosphere,sand in river blood flow in organism; engine,burning in boiler, generate electricity, refrigerate, vaporize in distil ; flow in congeal cycle, oil, mine and transportation of natural gas，matter flowed in all kinds of stove , pagoda in chemical production; mill run in mining industry, removing dirt in environment defense and so on. §10-2 Summary of two-phase flow