Basic research of thermoacoustic gas oscillation induced by phase changes at a vapor-liquid interface

气液界面相变引起的热声气体振荡基础研究

• 批准号: 24656125
• 负责人: YANO Takeru
• 金额: $ 2.58万
• 依托单位: Osaka University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Challenging Exploratory Research
• 财政年份: 2012
• 资助国家: 日本
• 起止时间: 2012 至 无数据
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-24656125/
• 关键词: 熱音響; 非平衡相変化; 気体分子運動論; 蒸発・凝縮; 混相流; エネルギー変換; 相変化; 自励振動; 非平衡; 分子気体力学; Boltzmann方程式; 分子動力学

The theoretical foundation of conventional thermoacoustic devices are the linear instability induced thermoacoustic boundary layer on the side wall of resonance tube. In the present study, we explore a possibility of new type of thermoacoustic oscillation. The results may be summarized as follows:(1) The construction of general theory which is capable of describing the cyclic phase change (evaporation and condensation) at the interface. The theory is based on the kinetic theory of gases.(2) The stability analysis of the phase-change-induced thermoacoustic oscillations.(3) The consideration of realization of new devices based on the phase-change-induced thermoacoustic oscillations.

传统热声器件的理论基础是共振管侧壁热声边界层的线性失稳。在本研究中，我们探索了一种新型热声振荡的可能性。总结如下：(1)建立了能够描述界面处循环相变（蒸发和冷凝）的一般理论。这个理论是以气体的运动理论为基础的。(2)相变热声振荡的稳定性分析。(3)基于相变诱发热声振荡的新型器件实现的考虑。

项目成果

Acoustic waves accompanied with phasechange at vapor-liquid interface

伴随气液界面相变的声波

• 发表时间: 2012
• 作者: Hirotaka Kameyama;Ikuru Otomo;Masahiko Onosato and Fumiki Tanaka;Takeru Yano
• 通讯作者: Takeru Yano

Acoustic waves accompanied with phase change at vapor-liquid interface

气液界面伴随相变的声波

• 发表时间: 2012
• 作者: Hirotaka Kameyama;Ikuru Otomo;Masahiko Onosato and Fumiki Tanaka;Takeru Yano;Takeru Yano
• 通讯作者: Takeru Yano