【摘要】 本文给出了衡量加热、加质大小的无量纲参数,定义了热质阻力系数,并对各种流动参数进行了分析和计算。更多还原

【Abstract】 Heating and mass-adding will cause a drag and mass block to a flow system, called heat-mass drag. The coefficient of heat-mass drag and the dimensionless number for measuring the effect of heat and mass-adding are defined. Calculation results show that the exit Mach number M2(M2<1) will decrease in the sub-critical flow state and the value of Ctm will not exceed 2. There is a critical value of mass-adding, at which the velocity of the system at the entrance is 0.更多还原