Weakly Nonlinear Analysis for Resonant Gas Oscillations with Evaporation and Condensation

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  • 蒸発・凝縮をともなう共鳴音波に関する弱非線形解析(分子スケール(1),一般講演)

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The behavior of resonant sound waves in a finite one-dimensional space between an oscillating plate (sound source) and a vapor-liquid interface is analyzed by applying the asymptotic theory for Kn<<M<<1, where M is the Mach number, Kn is the Knudsen number, for the case of small evaporation coefficient α. As a result, we derive a nonlinear integro-differential equation including α for determining the profile of sound.

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