Model Calculations of Transport Coefficients for Diatomic Gases in an External Magnetic Field. II. The Cartesian Tensor Perturbation Scheme

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Abstract
Model calculations are used to examine the convergence of a Cartesian tensor perturbation scheme for computing transport coefficients of diatomic gases in a static magnetic field. Numerical results are given to fourth order in the “nonsphericity” for the thermal conductivity and viscosity coefficients. For the shear viscosity only the second‐order contributions are significant. However, for the thermal conductivity, bulk viscosity, and coupling coefficients third‐order contributions are important. It is found that the addition of Sonine polynomials in the linear and angular momenta in the expansion for the shear viscosity makes no substantial contribution.