

Article
Moments Equations Based on FirstOrder ChapmanEnskog Solution
Authors: 
Söderholm, L. H. S. 
Document Type: 
Article 
Pubstate: 
Published 
Journal: 
Transport Theory and Statistical Physics 
Volume: 
27
68190 
Year: 
1998 
AbstractA modified method of 13 moments based on the first order ChapmanEnskog solution rather than the corresponding Hermite polynomials is proposed. Contrary to the Grad 13 moments equations the equations are correct to first order in the Knudsen number, having correct heat conductivity and viscosity and thus Prandtl number. The relaxation times and coupling coefficient between heat current and viscous pressure are calculated.

