Abstract

Nonlinear oscillations of a gas and deposition of tobacco smoke at resonance in a narrow closed tube were experimentally studied. The resulting oscillograms show asymmetry of the leading and trailing edges of the pressure wave. With an increase in piston oscillation amplitude, an increase in the sound pressure level of the gas was revealed to 163 dB at a maximum studied excitation amplitude of 0.3 mm. The deposition of tobacco smoke particles in resonance oscillation mode with an excitation amplitude of 0.3 mm occurs 24 times faster compared to natural deposition.

中文翻译：

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共振振荡模式下窄闭管中多分散气溶胶的沉积

摘要

通过实验研究了狭窄封闭管中气体的非线性振荡和烟草烟雾在共振下的沉积。所得波形图显示压力波前缘和后缘的不对称性。随着活塞振荡幅度的增加，在所研究的最大激励幅度为 0.3 毫米时，气体的声压级增加到 163 分贝。与自然沉积相比，在激励幅度为 0.3 毫米的共振振荡模式下，烟草烟雾颗粒的沉积速度要快 24 倍。