Modeling and Reliability Evaluation of the Motion and Fluid Flow Characteristics of Spark Bubbles in a Tube
Bubbles in pipes are widely present in marine engineering, transmission, and fluid systems with complex environments. This paper divides tubes into short, longer, and long tubes due to different lengths. In short tubes, the formation, development, and stability of spark bubbles are deeply analyzed t...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-02-01
|
| Series: | Applied Sciences |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2076-3417/15/5/2569 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850226191553789952 |
|---|---|
| author | Yuxin Gou Dongyan Shi Jiuqiang Wang |
| author_facet | Yuxin Gou Dongyan Shi Jiuqiang Wang |
| author_sort | Yuxin Gou |
| collection | DOAJ |
| description | Bubbles in pipes are widely present in marine engineering, transmission, and fluid systems with complex environments. This paper divides tubes into short, longer, and long tubes due to different lengths. In short tubes, the formation, development, and stability of spark bubbles are deeply analyzed through numerical simulation and experimental measurement, and the morphology and period of vortex rings generated in the surrounding fluid are studied. The results show that bubbles in tubes are significantly elongated compared with those in free fields. Changing the parameters of tubes can affect the size and oscillation speed of vortex rings. Secondary cavitation is found in asymmetric positions in longer tubes. The conditions, positions, and periods of multiple secondary cavitations are summarized in a series of experiments on long tubes. It is found that bubbles in tubes are related to the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mi>γ</mi><mi>t</mi></msub></semantics></math></inline-formula> and <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mi>γ</mi><mi>L</mi></msub></semantics></math></inline-formula> tube parameters. More secondary cavitation is easily generated in thinner and longer tubes. In addition, the pumping effect brought about by the movement of bubbles in tubes is studied. By designing reasonable tube parameters, the life cycle of bubbles can be changed, and the pumping efficiency can be improved. This study provides important theoretical support for the reliability of the movement of bubbles and surrounding fluid in tubes and lays a foundation for the optimization and promotion of this technology in practical applications. |
| format | Article |
| id | doaj-art-d71fa362300b4f9b807dd91f7239ecb4 |
| institution | OA Journals |
| issn | 2076-3417 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj-art-d71fa362300b4f9b807dd91f7239ecb42025-08-20T02:05:08ZengMDPI AGApplied Sciences2076-34172025-02-01155256910.3390/app15052569Modeling and Reliability Evaluation of the Motion and Fluid Flow Characteristics of Spark Bubbles in a TubeYuxin Gou0Dongyan Shi1Jiuqiang Wang2College of Mechanical and Electrical Engineering, Harbin Engineering University, Harbin 150001, ChinaCollege of Mechanical and Electrical Engineering, Harbin Engineering University, Harbin 150001, ChinaCollege of Mechanical and Electrical Engineering, Harbin Engineering University, Harbin 150001, ChinaBubbles in pipes are widely present in marine engineering, transmission, and fluid systems with complex environments. This paper divides tubes into short, longer, and long tubes due to different lengths. In short tubes, the formation, development, and stability of spark bubbles are deeply analyzed through numerical simulation and experimental measurement, and the morphology and period of vortex rings generated in the surrounding fluid are studied. The results show that bubbles in tubes are significantly elongated compared with those in free fields. Changing the parameters of tubes can affect the size and oscillation speed of vortex rings. Secondary cavitation is found in asymmetric positions in longer tubes. The conditions, positions, and periods of multiple secondary cavitations are summarized in a series of experiments on long tubes. It is found that bubbles in tubes are related to the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mi>γ</mi><mi>t</mi></msub></semantics></math></inline-formula> and <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mi>γ</mi><mi>L</mi></msub></semantics></math></inline-formula> tube parameters. More secondary cavitation is easily generated in thinner and longer tubes. In addition, the pumping effect brought about by the movement of bubbles in tubes is studied. By designing reasonable tube parameters, the life cycle of bubbles can be changed, and the pumping efficiency can be improved. This study provides important theoretical support for the reliability of the movement of bubbles and surrounding fluid in tubes and lays a foundation for the optimization and promotion of this technology in practical applications.https://www.mdpi.com/2076-3417/15/5/2569bubbleboundarybubble motionsecondary cavitationreliability |
| spellingShingle | Yuxin Gou Dongyan Shi Jiuqiang Wang Modeling and Reliability Evaluation of the Motion and Fluid Flow Characteristics of Spark Bubbles in a Tube Applied Sciences bubble boundary bubble motion secondary cavitation reliability |
| title | Modeling and Reliability Evaluation of the Motion and Fluid Flow Characteristics of Spark Bubbles in a Tube |
| title_full | Modeling and Reliability Evaluation of the Motion and Fluid Flow Characteristics of Spark Bubbles in a Tube |
| title_fullStr | Modeling and Reliability Evaluation of the Motion and Fluid Flow Characteristics of Spark Bubbles in a Tube |
| title_full_unstemmed | Modeling and Reliability Evaluation of the Motion and Fluid Flow Characteristics of Spark Bubbles in a Tube |
| title_short | Modeling and Reliability Evaluation of the Motion and Fluid Flow Characteristics of Spark Bubbles in a Tube |
| title_sort | modeling and reliability evaluation of the motion and fluid flow characteristics of spark bubbles in a tube |
| topic | bubble boundary bubble motion secondary cavitation reliability |
| url | https://www.mdpi.com/2076-3417/15/5/2569 |
| work_keys_str_mv | AT yuxingou modelingandreliabilityevaluationofthemotionandfluidflowcharacteristicsofsparkbubblesinatube AT dongyanshi modelingandreliabilityevaluationofthemotionandfluidflowcharacteristicsofsparkbubblesinatube AT jiuqiangwang modelingandreliabilityevaluationofthemotionandfluidflowcharacteristicsofsparkbubblesinatube |