A Selected Library of Transport Coefficients for Combustion and Plasma Physics Applications

Cloutman, L.D.

Lawrence Livermore National Laboratory

关键词: Navier-Stokes Equations;    Combustion;    Thermal Conductivity;    Coyotes;    Functionals;   

DOI  :  10.2172/793685
RP-ID  :  UCRL-ID-139893
RP-ID  :  W-7405-Eng-48
RP-ID  :  793685

美国|英语

来源: UNT Digital Library

【 摘 要 】

COYOTE and similar combustion programs based on the multicomponent Navier-Stokes equations require the mixture viscosity, thermal conductivity, and species transport coefficients as input. This report documents a model of these molecular transport coefficients that is simpler than the general theory, but which provides adequate accuracy for many purposes. This model leads to a computationally convenient, self-contained, and easy-to-use source of such data in a format suitable for use by such programs. We present the data for various neutral species in two forms. The first form is a simple functional fit to the transport coefficients. The second form is the use of tabulated Lennard-Jones parameters in simple theoretical expressions for the gas-phase transport coefficients. The model then is extended to the case of a two-temperature plasma. Lennard-Jones parameters are given for a number of chemical species of interest in combustion research.