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Transport properties of N2 gas at cryogenic temperaturesThe viscosity and thermal conductivity of nitrogen gas for the temperature range 5 K - 135 K have been computed from the second Chapman-Enskog approximation. Quantum effects, which become appreciable at the lower temperatures, are included by utilizing collision integrals based on quantum theory. A Lennard-Jones (12-6) potential was assumed. The computations yield viscosities about 20 percent lower than those predicted for the high end of this temperature range by the method of corresponding states, but the agreement is excellent when the computed values are compared with existing experimental data.
Document ID
19740013196
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Technical Note (TN)
Authors
Pearson, W. E.
(NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
September 3, 2013
Publication Date
April 1, 1974
Subject Category
Physics, General
Report/Patent Number
A-5327
NASA-TN-D-7565
Accession Number
74N21309
Funding Number(s)
PROJECT: RTOP 502-07-01
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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