Non-spherical multi-oscillations of a bubble in a compressible liquid
Bubble dynamics are associated with wide and important applications in cavitation erosion in many industrial systems, medical ultrasonics and underwater explosions. Two recent developments to this classical problem are reviewed in this paper. Firstly, computational studies on the problem have common...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
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2015
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| Online Access: | https://hdl.handle.net/10356/80818 http://hdl.handle.net/10220/38860 |
| _version_ | 1824453953537966080 |
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| author | Wang, Qian-xi Yang, Yuan-xiang Tan, Danielle Sweimann Su, Jian Tan, Soon Keat |
| author2 | School of Civil and Environmental Engineering |
| author_facet | School of Civil and Environmental Engineering Wang, Qian-xi Yang, Yuan-xiang Tan, Danielle Sweimann Su, Jian Tan, Soon Keat |
| author_sort | Wang, Qian-xi |
| collection | NTU |
| description | Bubble dynamics are associated with wide and important applications in cavitation erosion in many industrial systems, medical ultrasonics and underwater explosions. Two recent developments to this classical problem are reviewed in this paper. Firstly, computational studies on the problem have commonly been based on an incompressible fluid model. However, a bubble usually undergoes significantly damped oscillation due to the compressible effects. We model this phenomenon using weakly compressible theory and a modified boundary integral method. This model considers the energy loss due to shock waves emitted at minimum bubble volumes. Secondly, the computational studies so far have largely been concerned with the first-cycle of oscillation. However, a bubble usually oscillates for a few cycles before it breaks into much smaller ones. We model both the first- and second-cycles of oscillation and predict damped oscillations. Our computations correlate well with the experimental data. Key words: compressible bubble dynamics; weakly compressible theory; boundary integral method |
| first_indexed | 2025-02-19T03:14:36Z |
| format | Journal Article |
| id | ntu-10356/80818 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2025-02-19T03:14:36Z |
| publishDate | 2015 |
| record_format | dspace |
| spelling | ntu-10356/808182020-03-07T11:43:32Z Non-spherical multi-oscillations of a bubble in a compressible liquid Wang, Qian-xi Yang, Yuan-xiang Tan, Danielle Sweimann Su, Jian Tan, Soon Keat School of Civil and Environmental Engineering Maritime Research Centre Nanyang Environment and Water Research Institute compressible bubble dynamics; weakly compressible theory; boundary integral method Bubble dynamics are associated with wide and important applications in cavitation erosion in many industrial systems, medical ultrasonics and underwater explosions. Two recent developments to this classical problem are reviewed in this paper. Firstly, computational studies on the problem have commonly been based on an incompressible fluid model. However, a bubble usually undergoes significantly damped oscillation due to the compressible effects. We model this phenomenon using weakly compressible theory and a modified boundary integral method. This model considers the energy loss due to shock waves emitted at minimum bubble volumes. Secondly, the computational studies so far have largely been concerned with the first-cycle of oscillation. However, a bubble usually oscillates for a few cycles before it breaks into much smaller ones. We model both the first- and second-cycles of oscillation and predict damped oscillations. Our computations correlate well with the experimental data. Key words: compressible bubble dynamics; weakly compressible theory; boundary integral method Accepted version 2015-11-20T05:48:49Z 2019-12-06T13:59:36Z 2015-11-20T05:48:49Z 2019-12-06T13:59:36Z 2015 Journal Article Wang, Q. X., Yang, Y. X., Tan, D. S., Su, J., & Tan, S. K. (2015). Non-spherical multi-oscillations of a bubble in a compressible liquid. Journal of Hydrodynamics, Ser. B, 26(6), 848-855. 1001-6058 https://hdl.handle.net/10356/80818 http://hdl.handle.net/10220/38860 10.1016/S1001-6058(14)60093-7 en Journal of Hydrodynamics © 2015 Publishing House for Journal of Hydrodynamics. Published by Elsevier Ltd. This is the author created version of a work that has been peer reviewed and accepted for publication by Journal of Hydrodynamics, Elsevier. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [http://dx.doi.org/10.1016/S1001-6058(14)60093-7]. 12 p. application/pdf |
| spellingShingle | compressible bubble dynamics; weakly compressible theory; boundary integral method Wang, Qian-xi Yang, Yuan-xiang Tan, Danielle Sweimann Su, Jian Tan, Soon Keat Non-spherical multi-oscillations of a bubble in a compressible liquid |
| title | Non-spherical multi-oscillations of a bubble in a compressible liquid |
| title_full | Non-spherical multi-oscillations of a bubble in a compressible liquid |
| title_fullStr | Non-spherical multi-oscillations of a bubble in a compressible liquid |
| title_full_unstemmed | Non-spherical multi-oscillations of a bubble in a compressible liquid |
| title_short | Non-spherical multi-oscillations of a bubble in a compressible liquid |
| title_sort | non spherical multi oscillations of a bubble in a compressible liquid |
| topic | compressible bubble dynamics; weakly compressible theory; boundary integral method |
| url | https://hdl.handle.net/10356/80818 http://hdl.handle.net/10220/38860 |
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