摘要
燃料电池是一种可以替代传统能源的发展中新能源,具有效率高、环境友好等优点。其中两相流动的宏观动力学行为往往伴随着相变、界面的产生、合并运动等物理过程,传统的流体力学方法难以模拟这种复杂的流体系统。介绍了介观尺度的格子Boltzmann方法,阐述了两相流模型及其进展情况,论述了格子Boltzmann方法在气液两相界面动力学的应用。结果表明,格子Boltzmann方法是研究两相流动的有效手段,可以实时动态分析和模拟两相流动,获得清晰的两相界面信息,这些研究为更加复杂的多相流动提供了有力的分析手段和理论基础。
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.
作者
王茜
WANG Xi(School of Automobile,Chang'an University,Xi’an 710064,China)
出处
《汽车实用技术》
2022年第10期204-207,共4页
Automobile Applied Technology