【摘要】 利用Ｌｅｅ－Ｋｅｓｌｅｒ方程和一维等熵流动假设，求解了通常的天然气在不同成分、温度和压力下的文题临界流动函数Ｃ的值，此值与ＩＳＯ９３００对应数据非常接近。更多还原

【Abstract】 Basing on Lee-Keslcr equation and the assumption that the flow between the inlet and the throat of a Venturi nozzle is isentropic and one-dimensional, the values of critical flow function C for natural gases at various fractions,temperatures and pressures are obtained successfully.It is shown that these values are close to the data of ISO 9300.更多还原