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 by F. Sharipov and V. Seleznev, J. Phys. Chem. Ref. Data 27 , 657-706 (1998). If you have questions or suggestions to improve the program, please write me: sharipov@fisica.ufpr.br
Scheme of flow

Input data:

Radius of tube R: meter
Length of tube L: meter
Inlet pressure p1: Pa
Outlet pressure p2: Pa
Temperature of gas T: K
Gas*:



Results:

Mass flow rate: kg/s
Throughput Pa m3/s at 0oC
*If you need to calculate another species of gas, write me sharipov@fisica.ufpr.br



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