Boltzmann Equation Analyses for the Relaxation of Velocity Distribution of Neutrals with the Transient FTI Method

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概要

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• The relaxation process of the velocity distribution of neutral atonas injected intodilute atomic gases witla Maxwellian aztd non-Maxwellian velocity distributions hasbeen analysed by numerically solving the Boltzxnanua equation using the transient FTImethod. Here, only isotropic scattering in tlae center of mass frame and tlae collisioncharacteristics of constant collision frequency and of constant collision cross sectionare assuxned. Numerical analysis for the relaxation of the velocity distribution of theeuatire gas with a non-Maxwell initial distribution was also carried out Ivy linearizingthe Boltzmann equation seq uentially in tinae. TIIC results obtained are very simple andsuggestive. The mechanism driving tlae neutrals tow'ard the Maxw'ell distx'ibution is dis-cussed.[Maxwe1I distribution, center of mass s','stern, isotropic sca1.teriuag, relaxation, ve- l] locity distribution, H function, energy exchauage, velocity' dispersionl

• 社団法人日本物理学会の論文
• 1992-08-15

著者

• NAKAJIMA Sadanojo

  Department of Electrical and Electronic Engineering, The University of Tokushinna

• Nakajima Sadanojo

  Department Of Electrical And Electronic Engineering The University Of Tokushinna

• Nakajima Sadanojo

  Department Of Electrical And Electronic Engineering Tokushima University

• Nakajima Sadanojo

  Tokushima University

• Nakajima Sadanojo

  Faculty Of Engineering Tokushima University

• Ikuta Nobuaki

  Tokushima University

• Ikuta N

  Chiba Institute Of Technology

• Ikuta Nobuaki

  Department Of Electronic Engineering Technical College Tokushima University

• NISHI Eiji

  Department of Electrical and Electronic Engineering,Tokushima University

• MORIKAWA Hiroki

  Mitubishi Electric Co. Ltd.,

• Nishi E

  Tokushima University

• Nishi Eiji

  Department Electrical And Electronic Engineering Tokushima University

• Morikawa Hiroki

  Mitubishi Electric Co. Ltd.

• Ikuta Nobuaki

  Department Electrical And Electronic Engineering Tokushima University

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