Relaxation Properties of the Velocity Distribution of Gas Particles and the Variation of H Function : Atoms and Molecules

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概要

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• Temporal relaxation properties of the velocity distribution of small amount gas A of mass m_A injected into ambient gas B of mass m_B in thermal equilibrium at temperature T_B are investigated with the Boltzmann equation rewritten in a linear form. Even if started from an equilibrium state at T_A, the velocity distribution of A gas can not be in the Maxwellian form in transient stage but finally settles in the Maxwell distribution at T_B. Temporal variations of the fractional changes of the mean energy and the H function show the relaxation behavior quite frankly. The relaxation properties are discussed in various aspects.

• 社団法人日本物理学会の論文
• 2000-11-15

著者

• IKUTA Nobuaki

  Chiba Institute of Technology,Tsudanuma,

• Ikuta Nobuaki

  Chiba Institute Of Technology

• TAKEDA Akihide

  Junior College of Shikoku University

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