ISSN:
1089-7550
Quelle:
AIP Digital Archive
Thema:
Physik
Notizen:
Simple, easy to use analytic formulas for the calculation of neutral-gas transport properties such as viscosity, thermal conductivity, and diffusion coefficients are presented. The formulas are based on least-squares parametrizations of accurate numerical calculations of collision integrals for Lennard–Jones (n,6) fluids with n=9, 12, and 18. The accuracy of these formulas is shown to be of the order of 1%–2% for a wide range of fluid conditions. Analytic formulas for reduced transport coefficients are also proposed. The simplicity and accuracy of these results allow the inclusion of reliable neutral-gas transport properties in the computer modeling of high-pressure discharges, e.g., arc lamps, without the penalty of large increases in execution times.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1063/1.339478
