关键词: 燃料电池；格子 Boltzmann 方法；两相模型

Abstract: Fuel cell has the advantages of high efficiency and environmental friendliness. It is a new energy which can replace the traditional energy. The macroscopic dynamic behavior of two-phase flow is often accompanied by physical processes such as phase transition, interface generation, combined motion, etc. For such a complex fluid system, traditional fluid mechanics models and simulation methods are faced with great difficulties. The lattice Boltzmann method of mesoscopic scale is introduced in this paper, two-phase flow model and its progress are described, and the application of lattice Boltzmann method to two-phase flow is discussed. The results show that lattice Boltzmann method is an effective means to study the two-phase flow, which can dynamically analyze and simulate the two-phase flow in real time, and obtain clear information about the two-phase interface. These studies provide a powerful analytical means and theoretical basis for more complex multiphase flow.

Key words: Fuel cell; Lattice Boltzmann method; Two phase model