【摘要】 飞机客舱内病菌传播规律的数值模拟主要包括2个阶段，先模拟密闭空间内部空气流场，然后再在该流场基础上，研究呼吸液滴在其中的扩散。大多数研究采用湍流模型来仿真内流场，文中对比分析了各类湍流模型的特点及适用条件。离散相模型分析呼吸液滴在内流场内的扩散传播轨迹，欧拉模型分析呼吸液滴在内流场内随时间的扩散浓度变化，综述了离散相模型和欧拉模型的研究进展和应用现状。同时综述了解决旅客在客舱中移动影响病原体液滴传播规律的动网格技术，最后提出了数值仿真分析过程中亟待解决的问题。更多还原

【Abstract】 The numerical simulation of the transmission law of germs in the cabin of civil aircraft mainly includes two stages: firstly, the air flow field in the confined space is simulated, and then the diffusion of respiratory droplets in it is studied on the basis of the flow field.Most studies use turbulence models to simulate internal flow field.In this paper, the characteristics and applicable conditions of various turbulence models are compared and analyzed.Dispersed phase model is used to analyze the diffusion path of respiratory droplets in the inner flow field, while Euler model is used to analyze the change of the diffusion concentration of respiratory droplets in the inner flow field with time.Reviews the research progress and application status of discrete phase model and Euler model.At the same time, the dynamic grid technology to solve the problem that the passenger movement in the cabin affects the transmission law of the pathogen droplets is summarized.Finally, the urgent problems to be solved in the process of numerical simulation analysis are proposed.更多还原