Experimental investigation on the characteristics of the shock wave emitted by the cavitation bubble near the air bubble
This study explores the mitigation of cavitation damage in hydraulic engineering through air entrainment. The primary aim is to experimentally analyze the shock wave characteristics emitted by cavitation bubbles adjacent to air bubbles affixed to a tube nozzle. The schlieren optical system is utiliz...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2024-03-01
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| Series: | Ultrasonics Sonochemistry |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1350417724000944 |
| _version_ | 1797245021717528576 |
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| author | Jin Zhu Mindi Zhang Zhenkun Tan Lei Han Biao Huang |
| author_facet | Jin Zhu Mindi Zhang Zhenkun Tan Lei Han Biao Huang |
| author_sort | Jin Zhu |
| collection | DOAJ |
| description | This study explores the mitigation of cavitation damage in hydraulic engineering through air entrainment. The primary aim is to experimentally analyze the shock wave characteristics emitted by cavitation bubbles adjacent to air bubbles affixed to a tube nozzle. The schlieren optical system is utilized to visualize the shock wave, while a hydrophone measures its pressure. Experiments are conducted on cavitation bubbles induced by the spark-generated method in the vicinity of air bubbles, varying the dimensionless distances and sizes of the air bubbles. The results indicate that (1) The introduction of an air bubble noticeably changes the morphology, kinematic behavior, and shock wave features of the cavitation bubble. (2) Four distinct shock wave patterns are identified based on the quantity and shape of the shock wave, with variations in the cavitation bubble's collapsing behavior and shock wave characteristics across different patterns. (3) The dimensionless distance γ and size δ exert significant influence on the shock wave's quantity, pressure peak, shape, and energy. With γ decreases or δ increases, the shock wave quantity increases while the shock wave intensity decreases. This investigation of the interaction between cavitation bubbles and air bubbles is essential for elucidating the mechanism through which air entrainment mitigates cavitation damage. |
| first_indexed | 2024-04-24T19:20:17Z |
| format | Article |
| id | doaj.art-f7e256eeb9ef40b988b69ad1177578e3 |
| institution | Directory Open Access Journal |
| issn | 1350-4177 |
| language | English |
| last_indexed | 2024-04-24T19:20:17Z |
| publishDate | 2024-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ultrasonics Sonochemistry |
| spelling | doaj.art-f7e256eeb9ef40b988b69ad1177578e32024-03-26T04:26:40ZengElsevierUltrasonics Sonochemistry1350-41772024-03-01104106846Experimental investigation on the characteristics of the shock wave emitted by the cavitation bubble near the air bubbleJin Zhu0Mindi Zhang1Zhenkun Tan2Lei Han3Biao Huang4School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, ChinaSchool of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China; Corresponding author.School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China; Celes Automotive Company, Chongqing City 40020, ChinaSchool of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, ChinaSchool of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, ChinaThis study explores the mitigation of cavitation damage in hydraulic engineering through air entrainment. The primary aim is to experimentally analyze the shock wave characteristics emitted by cavitation bubbles adjacent to air bubbles affixed to a tube nozzle. The schlieren optical system is utilized to visualize the shock wave, while a hydrophone measures its pressure. Experiments are conducted on cavitation bubbles induced by the spark-generated method in the vicinity of air bubbles, varying the dimensionless distances and sizes of the air bubbles. The results indicate that (1) The introduction of an air bubble noticeably changes the morphology, kinematic behavior, and shock wave features of the cavitation bubble. (2) Four distinct shock wave patterns are identified based on the quantity and shape of the shock wave, with variations in the cavitation bubble's collapsing behavior and shock wave characteristics across different patterns. (3) The dimensionless distance γ and size δ exert significant influence on the shock wave's quantity, pressure peak, shape, and energy. With γ decreases or δ increases, the shock wave quantity increases while the shock wave intensity decreases. This investigation of the interaction between cavitation bubbles and air bubbles is essential for elucidating the mechanism through which air entrainment mitigates cavitation damage.http://www.sciencedirect.com/science/article/pii/S1350417724000944Cavitation bubbleAir bubbleShock waveSchlieren optical systemHydrophones |
| spellingShingle | Jin Zhu Mindi Zhang Zhenkun Tan Lei Han Biao Huang Experimental investigation on the characteristics of the shock wave emitted by the cavitation bubble near the air bubble Ultrasonics Sonochemistry Cavitation bubble Air bubble Shock wave Schlieren optical system Hydrophones |
| title | Experimental investigation on the characteristics of the shock wave emitted by the cavitation bubble near the air bubble |
| title_full | Experimental investigation on the characteristics of the shock wave emitted by the cavitation bubble near the air bubble |
| title_fullStr | Experimental investigation on the characteristics of the shock wave emitted by the cavitation bubble near the air bubble |
| title_full_unstemmed | Experimental investigation on the characteristics of the shock wave emitted by the cavitation bubble near the air bubble |
| title_short | Experimental investigation on the characteristics of the shock wave emitted by the cavitation bubble near the air bubble |
| title_sort | experimental investigation on the characteristics of the shock wave emitted by the cavitation bubble near the air bubble |
| topic | Cavitation bubble Air bubble Shock wave Schlieren optical system Hydrophones |
| url | http://www.sciencedirect.com/science/article/pii/S1350417724000944 |
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