空调客车车体顶部弓形封闭空腔自然对流换热研究

本文应用自然对流换热理论和数值计算方法，对空调客车车体顶部弓形封闭空腔自 然对流换热规律进行了模型研究，用数值方法求出了空腔当量导热系数，同时用差 分干涉仪对同尺寸模型进行了实测，两者结果取得了较好的一致。 

Research on Natural Convection Heat Transfer in Bow-Shaped Enclosed Space on the Top of Air-Conditioned Passenger Train Body

The theorem of heat transfer by natural convection and the numerical method are used to research the patterns of heat transfer by natural convection in bow-shaped enclosed space on the top of an air-conditioned passenger train body. The equivalent thermal conductivity of the enclosed space is obtained with a numerical method and the difference interferometer is utilized to survey the temperature field in a model of same size. The results of both methods agree well.