AM05-16-005 新13モーメント近似によるボルツマン方程式の衝撃波解の存在(波動・音・衝撃波1,一般講演)

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  • AM05-16-005 On the existence of a shock wave solution of the Boltmann kinetic equation

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A one-dimensional steady shock-wave solution of the Boltzmann kinetic equation is studied by utilizing a new type of 13-moment approximation proposed by Oguchi (1997). The collision term is expressed in an explicit function of the molecular velocity. We can examine directly the nature of the singularity of the distribution function to this particular problem caused by the vanishing molecular velocity. Moment integrals is thus obtained directly because of its explicit expression.

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