Theory of Zero Sound in a Nearly Perfect Boltzmann Gas
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概要
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A detailed study is given of density waves in nearly perfect Boltzmann gases under those conditions which invalidate the usual phenomenological theory of sound waves. It is shown that thermal agitation of gas particles behaves as a barrier against the propagation of density waves in an unbounded system; and that forced density waves in a system bounded by a single rigid plane vary as exp[-(3/2)(α/2)^<2/3>]cos[3√<3>/2(α/2)^<2/3>-ωt] for large values of α;α=√<m/2KT>・ωz,where ω is the angular frequency and z is the distance from the plane. A discussion of the results is given with reference to previous experimental work.
- 理論物理学刊行会の論文
- 1964-07-25
著者
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Takimoto Noboru
Department Of Applied Mathematics University Of New South Wales : Tohoku University
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NINHAM Barry
Department of Applied Mathematics University of New South Wales
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