【摘要】 <正> 一、引言在真空系统设计与计算中,为了表征稀薄气体通过真空系统管路元件的流动,通常给出流导几率(即传输几率),流导几率是确定气体流量的一个重要参数。对于一些形状简单的管道通常都有解析公式可以计算,但对于一些几何形状比较复杂的真空系统管更多还原

【Abstract】 At present, Monte Carlo method is widely used in the vacuum science and technology Calculation of transmission probability of a tube is a good example.With the Monte Carlo method introduced by D. H. Davis calculation of the transmission probability of (?) tapered round tube and the simplified geometry of a vacuum baffle valve is presented in this paper. Since conical tube and baffle valve are common elements in vacuum systems, the practical value for vacuum system design and calculation is provided.更多还原