Acoustic wave propagation in bubbly flow with gas, vapor or their mixtures
Acoustic wave propagation in bubbly flow with gas, vapor or their mixtures
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气体、蒸汽或其混合物的气泡流中的声波传播
DOI：
10.1016/j.ultsonch.2017.03.048
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发表时间：
2018
影响因子：
8.4
通讯作者：
Xiaoze Du
中科院分区：
文献类型：
--
作者：
Yuning Zhang;Zhongyu Guo;Yuhang Gao;Xiaoze Du
液体中气泡的存在可以显著改变声波的波速和衰减。在本文中，声波在泡状流与气体，蒸汽和气体/蒸汽混合物的传播理论研究在很宽的参数范围内（包括频率，气泡半径，空隙率，和蒸汽质量分数）。我们的发现揭示了两种类型的波的传播行为取决于蒸汽的质量分数。此外，最小波速（所需的空化模型在声化学反应器的设计关闭）进行了分析，并定量地讨论了最重要的参数对它的影响。
Presence of bubbles in liquids could significantly alter the acoustic waves in terms of wave speed and attenuation. In the present paper, acoustic wave propagation in bubbly flows with gas, vapor and gas/vapor mixtures is theoretically investigated in a wide range of parameters (including frequency, bubble radius, void fraction, and vapor mass fraction). Our finding reveals two types of wave propagation behavior depending on the vapor mass fraction. Furthermore, the minimum wave speed (required for the closure of cavitation modelling in the sonochemical reactor design) is analyzed and the influences of paramount parameters on it are quantitatively discussed.