In this chapter we summarize the preliminary information on the Boltzmann equation (the definitions, notations, formulas, etc.) for the convenience of the discussions in the following chapters. With this preliminary summary, the readers will proceed faster to the discussion of gas-dynamic problems treated in those chapters. Its detailed or supplementary explanation is given in Appendix A. Related information is found in Boltzmann [1896, 1898], Grad , Vin-centi & Kruger , Kogan , Cercignani , Sone & Aoki , and Sone .
KeywordsBoltzmann Equation Collision Frequency Maxwell Distribution Velocity Distribution Function Collision Term
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