FREE MOLECULAR GAS FLOW THROUGH A CYLINDRICAL TUBE
The applet provides
the mass flow rate of a gas through a tube of
arbitrary length in the free-molecular regime
assuming the diffuse (cosine law) gas-surface interaction.
The details can be found in Sec. 5.2.2 of paper
F. Sharipov and V. Seleznev, J. Phys. Chem. Ref. Data
27 , 657-706 (1998).
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Scheme of flow