Transport coefficients of helium and argon-helium plasmas

Author

Murphy, Anthony B.

Author_Institution

CSIRO Telecommun. & Ind. Phys., Lindfield, NSW, Australia

Volume

25

Issue

5

fYear

1997

fDate

10/1/1997 12:00:00 AM

Firstpage

809

Lastpage

814

Abstract

Calculated values of the viscosity, thermal conductivity, and electrical conductivity of helium, and mixtures of argon and helium, at high temperatures are presented. In addition, combined ordinary, pressure, and thermal diffusion coefficients are given for the mixtures. The calculations, which assume local thermodynamic equilibrium, are performed for atmospheric pressure plasmas in the temperature range from 300 to 30000 K. The results are compared with those of previously published studies. Significant discrepancies are found; these are attributed to the improved values of the collision integrals used here in calculating the transport coefficients

Keywords

argon; helium; plasma transport processes; thermal conductivity; thermal diffusion; viscosity; 1 atm; 300 to 30000 K; Ar-He plasmas; He; He plasmas; He-Ar; atmospheric pressure; electrical conductivity; high temperature; local thermodynamic equilibrium; pressure coefficients; thermal conductivity; thermal diffusion coefficients; transport coefficients; viscosity; Argon; Atmospheric-pressure plasmas; Helium; Plasma properties; Plasma temperature; Plasma transport processes; Plasma welding; Thermal conductivity; Uncertainty; Viscosity;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/27.649574

Filename

649574