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The merging of two gaseous bubbles with an application to underwater explosions |
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| Authors: | S. RungsiyaphornratE. Klaseboer B.C. Khoo K.S. Yeo |
| Affiliation: | a Faculty of Engineering at Si Racha Kasetsart University, 199 Sukumvit Road, Tungsukkla, Si Racha, Chonburi 20230, Thailand b Institute of High Performance Computing, 1 Science Park Road #01-01, The Capricorn, Singapore 117528 c Department of Mechanical Engineering, National University of Singapore, 10 Kent Ridge Crescent, Singapore 119260 d Singapore--MIT Alliance, 4 Engineering Drive 3, Singapore 117576 |
| Abstract: | A numerical study of two gaseous bubbles merging into a single coalesced bubble as in underwater explosions is investigated in this paper. This explosive phenomenon is modeled using a boundary integral method. Two configurations, which are in-phase and out-of-phase explosions, are simulated and compared with available experimental results. The thickness of the liquid film between the two bubbles determines our coalescence criterion. Bubble shapes and periods of oscillation are predicted well, compared to those of the experiments. |
| Keywords: | Bubbles Underwater explosion Coalescence Boundary integral method |
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