Numerical simulation of acoustic field under mechanical stirring

doi:10.1088/1674-1056/abf4bb

中国物理B ›› 2021, Vol. 30 ›› Issue (10): 104302-104302.doi: 10.1088/1674-1056/abf4bb

Numerical simulation of acoustic field under mechanical stirring

Jin-He Liu(刘金河), Zhuang-Zhi Shen(沈壮志)^†, and Shu-Yu Lin(林书玉)

School of Physics and Information Technology, Shaanxi Normal University, Shaanxi Key Laboratory of Ultrasonics, Xi'an 710119, China

收稿日期:2021-01-19 修回日期:2021-03-05 接受日期:2021-04-05 发布日期:2021-09-30
通讯作者: Zhuang-Zhi Shen E-mail:szz6@163.com
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos. 11674207 and 11674206).

Numerical simulation of acoustic field under mechanical stirring

Jin-He Liu(刘金河), Zhuang-Zhi Shen(沈壮志)^†, and Shu-Yu Lin(林书玉)

School of Physics and Information Technology, Shaanxi Normal University, Shaanxi Key Laboratory of Ultrasonics, Xi'an 710119, China

Received:2021-01-19 Revised:2021-03-05 Accepted:2021-04-05 Published:2021-09-30
Contact: Zhuang-Zhi Shen E-mail:szz6@163.com
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 11674207 and 11674206).

摘要/Abstract

摘要： The present study analyzes the effect of stirring on ultrasonic degradation experiments through acoustic field distribution, which provides a guidance for further improvement of the degradation rate of organic solutions. It is known that in order to eliminate the standing wave field formed by ultrasonic radiation in the water tank, the liquid in the water tank needs to be stirred and the corresponding distribution of acoustic field is simulated by using the finite element method (FEM). The standing wave leads to an uneven distribution of the acoustic field when it is not stirred, and disappears after being stirred, which increases the cavitation area in the ultrasonic cleaning tank. Then, the degradation experiment with agitation is carried out. The experimental results show that the degradation rate of the solution is higher than that when there is no agitation, which confirms the importance of the acoustic field distribution to ultrasonic degradation. In addition, it is clear that with the increase of the stirring speed, the degradation rate increases first and reaches a maximum at 600 rpm before decreasing. Finally, the distribution of flow field is simulated and analyzed.

关键词: ultrasonic degradation, acoustic field, finite element method, flow field

Abstract: The present study analyzes the effect of stirring on ultrasonic degradation experiments through acoustic field distribution, which provides a guidance for further improvement of the degradation rate of organic solutions. It is known that in order to eliminate the standing wave field formed by ultrasonic radiation in the water tank, the liquid in the water tank needs to be stirred and the corresponding distribution of acoustic field is simulated by using the finite element method (FEM). The standing wave leads to an uneven distribution of the acoustic field when it is not stirred, and disappears after being stirred, which increases the cavitation area in the ultrasonic cleaning tank. Then, the degradation experiment with agitation is carried out. The experimental results show that the degradation rate of the solution is higher than that when there is no agitation, which confirms the importance of the acoustic field distribution to ultrasonic degradation. In addition, it is clear that with the increase of the stirring speed, the degradation rate increases first and reaches a maximum at 600 rpm before decreasing. Finally, the distribution of flow field is simulated and analyzed.

Key words: ultrasonic degradation, acoustic field, finite element method, flow field

中图分类号: (Nonlinear acoustics)

43.25.+y

43.35.+d (Ultrasonics, quantum acoustics, and physical effects of sound) 43.38.+n (Transduction; acoustical devices for the generation and reproduction of sound)

Jin-He Liu(刘金河), Zhuang-Zhi Shen(沈壮志), and Shu-Yu Lin(林书玉). Numerical simulation of acoustic field under mechanical stirring[J]. 中国物理B, 2021, 30(10): 104302-104302.

Jin-He Liu(刘金河), Zhuang-Zhi Shen(沈壮志), and Shu-Yu Lin(林书玉). Numerical simulation of acoustic field under mechanical stirring[J]. Chin. Phys. B, 2021, 30(10): 104302-104302.

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Numerical simulation of acoustic field under mechanical stirring

Numerical simulation of acoustic field under mechanical stirring

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