Theoretical estimation of sonochemical characteristics in a single cavitation bubble under various static pressure conditions

Cavitation bubbles can be generated by introducing ultrasonic waves into the liquid. The growth and collapse of the bubbles transfer energy from ultrasonic waves to the gas mixture, resulting in the formation of an extreme environment with local high pressure and temperature, and then, multiple prod...

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Main Authors: Liang Lv, Zongyong Lou, Changdong Wan
Format: Article
Language:English
Published: AIP Publishing LLC 2024-03-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/5.0203571
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author Liang Lv
Zongyong Lou
Changdong Wan
author_facet Liang Lv
Zongyong Lou
Changdong Wan
author_sort Liang Lv
collection DOAJ
description Cavitation bubbles can be generated by introducing ultrasonic waves into the liquid. The growth and collapse of the bubbles transfer energy from ultrasonic waves to the gas mixture, resulting in the formation of an extreme environment with local high pressure and temperature, and then, multiple products (H2, ·OH, H·, O, H2O2, and so on) are produced. In the present study, the sonochemical characteristics inside an oxygen bubble have been investigated by using single bubble dynamics equations taking mass transfer, heat exchange, and chemical reactions into account. The effects of the equilibrium radius and static pressure on the temperature and the yields of H2, ·OH, and total oxidants inside the bubble are analyzed. There are optimal equilibrium radii that maximize gas temperature and the amounts of H2, ·OH, and total oxidants under different static pressures. The results of this paper are in good agreement with the previous results and can be used to explain sonochemical phenomena observed in experiments.
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spelling doaj.art-132b621abcbd41b09069346d4371977a2024-04-02T20:29:19ZengAIP Publishing LLCAIP Advances2158-32262024-03-01143035353035353-910.1063/5.0203571Theoretical estimation of sonochemical characteristics in a single cavitation bubble under various static pressure conditionsLiang Lv0Zongyong Lou1Changdong Wan2School of Mechano-Electronic Engineering, Suzhou Vocational University, Suzhou 215100, ChinaDepartment of Thermal Engineering, Hebei Petroleum University of Technology, Chengde 067000, ChinaSchool of Mechano-Electronic Engineering, Suzhou Vocational University, Suzhou 215100, ChinaCavitation bubbles can be generated by introducing ultrasonic waves into the liquid. The growth and collapse of the bubbles transfer energy from ultrasonic waves to the gas mixture, resulting in the formation of an extreme environment with local high pressure and temperature, and then, multiple products (H2, ·OH, H·, O, H2O2, and so on) are produced. In the present study, the sonochemical characteristics inside an oxygen bubble have been investigated by using single bubble dynamics equations taking mass transfer, heat exchange, and chemical reactions into account. The effects of the equilibrium radius and static pressure on the temperature and the yields of H2, ·OH, and total oxidants inside the bubble are analyzed. There are optimal equilibrium radii that maximize gas temperature and the amounts of H2, ·OH, and total oxidants under different static pressures. The results of this paper are in good agreement with the previous results and can be used to explain sonochemical phenomena observed in experiments.http://dx.doi.org/10.1063/5.0203571
spellingShingle Liang Lv
Zongyong Lou
Changdong Wan
Theoretical estimation of sonochemical characteristics in a single cavitation bubble under various static pressure conditions
AIP Advances
title Theoretical estimation of sonochemical characteristics in a single cavitation bubble under various static pressure conditions
title_full Theoretical estimation of sonochemical characteristics in a single cavitation bubble under various static pressure conditions
title_fullStr Theoretical estimation of sonochemical characteristics in a single cavitation bubble under various static pressure conditions
title_full_unstemmed Theoretical estimation of sonochemical characteristics in a single cavitation bubble under various static pressure conditions
title_short Theoretical estimation of sonochemical characteristics in a single cavitation bubble under various static pressure conditions
title_sort theoretical estimation of sonochemical characteristics in a single cavitation bubble under various static pressure conditions
url http://dx.doi.org/10.1063/5.0203571
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AT changdongwan theoreticalestimationofsonochemicalcharacteristicsinasinglecavitationbubbleundervariousstaticpressureconditions