WaldmannSnider Collision Intergrals for Mixtures of Polyatomic Gases. Exact and Approximate Relations
Abstract
Collision brackets of the linearized WaldmannSnider collision superoperator are studied for mixtures of polyatomic gases. Properties following f r om symmetries of molecular interaction and collisional conservation laws are discussed. For a complete system of expansion tensors bracket symbol expressions for effective cross sections are given which generalize the ChapmanCowling Ωintegrals. Exact relations between effective cross sections are derived. Approximate relations which hold for molecules with small nonsphericity and elastic scattering are also given
 Publication:

Zeitschrift Naturforschung Teil A
 Pub Date:
 November 1979
 DOI:
 10.1515/zna19791101
 Bibcode:
 1979ZNatA..34.1255K
 Keywords:

 Gas Mixtures;
 Molecular Collisions;
 Polyatomic Gases;
 Scattering Cross Sections;
 Approximation;
 Conservation Laws;
 Elastic Scattering;
 Scattering Amplitude;
 Atomic and Molecular Physics