Molecular Flow Analysis in Orifice-Restricted Tube Using Maxwellian Distribution Function

抄録

Free molecular flow through a long conduit with an orifice-restricted exit was analyzed theoretically using a local Maxwellian distribution function. The theoretically derived transmission probabilities for the conduit with the ratio of length to tube diameter greater than 15, and the cross-sectional area ratio of tube and orifice openings greater than 70 agrees well with those computed using a Monte Carlo method.