Exact Solutions in 1+1 Dimensions of the General Two-Velocity Discrete Illner Model
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摘要: Illner模型是最一般的Boltzmann方程的两速模型,它包括Carleman模型和McKean模型作为两种特殊情形.离散Ilner模型1+1维精确解能够以一种简洁的方式进行研究.前人的结论需要修正.我们得到了一类新的1+1维精确解.这给出了研究类似的离散Boltzmann方程精确行波解的一般方法.
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关键词:
- 离散Boltzmann方程 /
- Illner模型 /
- 行波解 /
- 双孤子解
Abstract: The Illner,model is the most general two-velocity model of the discrete Boltoman equation.It includes,as particular cases,both the Carleman and the MeKean model.Exact solutions in 1+1 dunensions of the general two-velocity discrete Illner model can be studied in a concise way.The conclusions of the precursors need anredliorating.A new type of exact solutions in 1+1 dimensions is obtained.This gives a general method for studying non-trivial exact solutions for the similar discrete Boltzmann equation. -
[1] M.H.Ernst,Nonlinear model-Boltzmann equation and exact solutions,Phys.Rep.,78,1(1981),1-171. [2] T.Platkowski and R.Illner,Discrete velocity models of the Boltzmann equation: a survey on the muthematical aspects of the theory,SLAM Review,30,2(1988),213-255. [3] Roberto Monaco and Luigi Preziosi,Fluid Dynamic Applications of the Discrete Boltzmann Equation,World Scientific,Singapore(1991),b3-198. [4] Henri Cornille,Exact solutions in 1+1 dimensions of the general two-velocity discrete Illner model,J.Math.Phys.,28,7(1987),1567-1579. [5] J.Wick,Two classes of explicit solutions of the Carleman model,Math.Methods Appl.Sci.,6(1984),515-519.
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