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

Hideo Shinagawa; Masaki Kuramitsu; Kikuo Okuyama

doi:10.1252/jcej.33.891

Transport Phenomena, Fluid Mechanics and Mixing

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

Hideo Shinagawa, Masaki Kuramitsu, Kikuo Okuyama

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Keywords: Free Molecular Flow, Maxwellian Distribution Function, Monte Carlo Method, Orifice, Cylindrical Tube

JOURNAL RESTRICTED ACCESS

2000 Volume 33 Issue 6 Pages 891-893

DOI https://doi.org/10.1252/jcej.33.891

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Abstract

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.

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