72 Simulation Of Multiphase Flows

Mathematical models governing multiphase flows are discussed in Chapter 4. As mentioned earlier, multiphase flows may exhibit several different flow regimes, and different modeling approaches are used to simulate these different flow regimes. Three basic modeling approaches, namely (1) volume of fluid approach (VOF), (2) Eulerian-Lagrangian (EL), and (3) Eulerian-Eulerian (EE) and the corresponding basic transport equations governing multiphase flows were discussed in Chapter 4. Although the basic finite volume method is applicable to simulation of multiphase flows, each of these approaches requires different features and special algorithms to solve the governing equations. Some of these issues are briefly discussed here.

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