Thirteen-moments model kinetic equation and its parameters

The generalized model kinetic equation representing a hybrid of Shakhov equation and ellipsoidal statistical Holway equation is offered. This is so-called thirteen-moments equation. Equation constants at first are expressed through transport coefficients — viscosity of gas, its heat conductivity and self-diffusion coefficient. Then transport coefficients are expressed through integral brackets, and for model molecules — hard spheres are finished to number in the first and the second approximations.