Identification approach of acoustic cavitation via frequency spectrum of sound pressure wave signals in numerical simulation
In a sono-reactor, complex ultrasound pressure wave signal can be detected, containing multiple information related to acoustic cavitation. In this present study, acoustic cavitation in a cylinder is investigated numerically. Via Fast Fourier Transfer (FFT), the sound pressure signals from sonotrode...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2022-11-01
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| Series: | Ultrasonics Sonochemistry |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1350417722002784 |
| _version_ | 1828122280728723456 |
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| author | Weixiang Lin Juan Xiao Jian Wen Simin Wang |
| author_facet | Weixiang Lin Juan Xiao Jian Wen Simin Wang |
| author_sort | Weixiang Lin |
| collection | DOAJ |
| description | In a sono-reactor, complex ultrasound pressure wave signal can be detected, containing multiple information related to acoustic cavitation. In this present study, acoustic cavitation in a cylinder is investigated numerically. Via Fast Fourier Transfer (FFT), the sound pressure signals from sonotrode emitting surface are separated into harmonics, sub/ultra-harmonics and cavitation white noise: (1) the appearance of harmonics proved the non-linear propagation of ultrasound, (2) at the vibratory amplitude from 5∼20μm, only harmonics exists in the frequency spectra, corresponding to expansion and compression of non-condensable gas (NCG), (3) at the vibratory amplitude range of 30∼50μm, the occurrence of sub/ultra-harmonics demonstrated gaseous cavitation occurred, and (4) at the vibratory amplitude higher than 55μm, cavitation white noise arose, pointing out the initiation of vaporous cavitation. Based on the combination of frequency spectra and cavitation zones distribution, the acoustic cavitation state in water liquid is determined. |
| first_indexed | 2024-04-11T14:32:14Z |
| format | Article |
| id | doaj.art-aedc84852ca242f88b842dc916cd4872 |
| institution | Directory Open Access Journal |
| issn | 1350-4177 |
| language | English |
| last_indexed | 2024-04-11T14:32:14Z |
| publishDate | 2022-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ultrasonics Sonochemistry |
| spelling | doaj.art-aedc84852ca242f88b842dc916cd48722022-12-22T04:18:29ZengElsevierUltrasonics Sonochemistry1350-41772022-11-0190106182Identification approach of acoustic cavitation via frequency spectrum of sound pressure wave signals in numerical simulationWeixiang Lin0Juan Xiao1Jian Wen2Simin Wang3School of Chemical Engineering and Technology, Xi’an Jiaotong University, Xi’an 710049, ChinaSchool of Chemical Engineering and Technology, Xi’an Jiaotong University, Xi’an 710049, ChinaSchool of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, ChinaSchool of Chemical Engineering and Technology, Xi’an Jiaotong University, Xi’an 710049, China; Corresponding author.In a sono-reactor, complex ultrasound pressure wave signal can be detected, containing multiple information related to acoustic cavitation. In this present study, acoustic cavitation in a cylinder is investigated numerically. Via Fast Fourier Transfer (FFT), the sound pressure signals from sonotrode emitting surface are separated into harmonics, sub/ultra-harmonics and cavitation white noise: (1) the appearance of harmonics proved the non-linear propagation of ultrasound, (2) at the vibratory amplitude from 5∼20μm, only harmonics exists in the frequency spectra, corresponding to expansion and compression of non-condensable gas (NCG), (3) at the vibratory amplitude range of 30∼50μm, the occurrence of sub/ultra-harmonics demonstrated gaseous cavitation occurred, and (4) at the vibratory amplitude higher than 55μm, cavitation white noise arose, pointing out the initiation of vaporous cavitation. Based on the combination of frequency spectra and cavitation zones distribution, the acoustic cavitation state in water liquid is determined.http://www.sciencedirect.com/science/article/pii/S1350417722002784Acoustic cavitationFast Fourier TransferNon-linear acousticAcoustic spectrum |
| spellingShingle | Weixiang Lin Juan Xiao Jian Wen Simin Wang Identification approach of acoustic cavitation via frequency spectrum of sound pressure wave signals in numerical simulation Ultrasonics Sonochemistry Acoustic cavitation Fast Fourier Transfer Non-linear acoustic Acoustic spectrum |
| title | Identification approach of acoustic cavitation via frequency spectrum of sound pressure wave signals in numerical simulation |
| title_full | Identification approach of acoustic cavitation via frequency spectrum of sound pressure wave signals in numerical simulation |
| title_fullStr | Identification approach of acoustic cavitation via frequency spectrum of sound pressure wave signals in numerical simulation |
| title_full_unstemmed | Identification approach of acoustic cavitation via frequency spectrum of sound pressure wave signals in numerical simulation |
| title_short | Identification approach of acoustic cavitation via frequency spectrum of sound pressure wave signals in numerical simulation |
| title_sort | identification approach of acoustic cavitation via frequency spectrum of sound pressure wave signals in numerical simulation |
| topic | Acoustic cavitation Fast Fourier Transfer Non-linear acoustic Acoustic spectrum |
| url | http://www.sciencedirect.com/science/article/pii/S1350417722002784 |
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