Flow birefringence measurements have been performed for several linear molecules between 90 and 293 K. From a comparison with viscomagnetic effect data, information is obtained about the scalar factor of the angular momentum polarization present in viscous flow, of which only the tensorial factor ha
Flow birefringence in gases: The temperature dependence
β Scribed by H. van Houten; J. Korving; J.J.M. Beenakker
- Publisher
- Elsevier Science
- Year
- 1985
- Tongue
- English
- Weight
- 388 KB
- Volume
- 130
- Category
- Article
- ISSN
- 0378-4371
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Absolute flow birefringence data are required for a final consistency test of the kinetic theory of angular momentum polarizations. In order to obtain reliable values the possible sources of error in the experimental set-up used to measure flow birefringence in gases have been investigated. Special
A multilevel descrtption is &en of the magnero\*i.scosit) coefficient for a pol>xomic gas and !-or the cIose1~ related fIo\r birefringence coefficient. These results are generahzations of earlier single-term descriptions, nnd the ambiguuv of dctermming the appropriate normalization for the-Ppolariza
The expressions for the nonequilibrium temperature derived from the fluctuation-dissipation theorem and from the differential of the informational nonequilibrium entropy for ideal gases under shear flow are compared. Both temperatures are different, in particular, the thermodynamic temperature deriv