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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...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Elsevier
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9562418/ https://www.ncbi.nlm.nih.gov/pubmed/36209636 http://dx.doi.org/10.1016/j.ultsonch.2022.106182 |
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author | Lin, Weixiang Xiao, Juan Wen, Jian Wang, Simin |
author_facet | Lin, Weixiang Xiao, Juan Wen, Jian Wang, Simin |
author_sort | Lin, Weixiang |
collection | PubMed |
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. |
format | Online Article Text |
id | pubmed-9562418 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Elsevier |
record_format | MEDLINE/PubMed |
spelling | pubmed-95624182022-10-15 Identification approach of acoustic cavitation via frequency spectrum of sound pressure wave signals in numerical simulation Lin, Weixiang Xiao, Juan Wen, Jian Wang, Simin Ultrason Sonochem Short Communication 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. Elsevier 2022-09-27 /pmc/articles/PMC9562418/ /pubmed/36209636 http://dx.doi.org/10.1016/j.ultsonch.2022.106182 Text en © 2022 The Authors https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Short Communication Lin, Weixiang Xiao, Juan Wen, Jian Wang, Simin Identification approach of acoustic cavitation via frequency spectrum of sound pressure wave signals in numerical simulation |
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 | Short Communication |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9562418/ https://www.ncbi.nlm.nih.gov/pubmed/36209636 http://dx.doi.org/10.1016/j.ultsonch.2022.106182 |
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