水中孤立气泡对声波的耗散作用

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Dissipative Effects of an Isolated Bubble in Water on the Sound Wave

摘要: 本文从气泡壁面线性运动方程出发,对水中孤立气泡的声耗散机理进行了分析。结果表明:气泡对声波具有明显的耗散作用;耗散作用由声散射和声吸收两部份组成;热传导在气泡对声波的耗散作用中起决定性作用;气泡处于谐振时,对声波具有最大的耗散作用。
- 气泡散射 /
- 气泡吸收 /
- 声耗散
Abstract: The dissipative mechanisms of an isolated bubble in water for souad wave are analysed on the basis of the linearized theory of oscillations of a gas bubble.It is shown that the dissipative effects are obvious and contain the scattering and absorption of sound by a bubble;the heat conduction is decisive in the dissipative effects of bubble:a nd the dissipative effects are mazimum it resonance.
- scattering of bubble /
- absorption of bubble /
- dissipative on the sound wave

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