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A strong coupling effect between the bubble and water occurs when an explosive bubble expands and contracts near the water surface, leading to the complex changes of the flow field and various shapes of water plumes. An experimental system for small equivalent of charge RDX is designed to investigate the relations between the shapes of water plumes and the changes of the flow field. Two synchronized high speed cameras are used to record the changing process of the shapes of bubbles and water plume. Three typical shapes of bubble and six typical shapes of water plumes are observed. By theoretical analysis and direct observation of flow field changes among the bubble, the water surface, and the air, the evolution rule and formation mechanism of the six shapes of water plumes are allready revealed. Experimental results are also compared with that from the experiment of bubbles formed by electric spark. Through statistical analysis of bubble radius, expansion time, pulsation period, and bubble boundary movement, the dynamic process of bubble formation in near water surface explosion is clarified.
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Keywords:
- underwater explosion /
- plume /
- bubble /
- experiment
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[14] Swisdak M M 1978 ADA 056694
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[18] Connor J G, Higdon C E 1996 NSWCDD/TR-96/178
[19] Abdolrahman D, Khoo B C, Mohammad T, Shervani T 2009 Res. Art. 46 419
[20] Chahine G L, Frederick G S, Lambrecht C J,Harris G S, Mair H U 1995 SAVIAC Proceedings 66th Shock and Vibrations Symposium Biloxi, Oct. 30-Nov. 3, 1995 p265
[21] Zhang A M, Wang C, Wang S P, Cheng X D 2012 Acta Phys. Sin. 61 084701(in Chinese) [张阿漫, 王超, 王诗平, 程晓达 2012 61 084701]
[22] Robinson P B, Blake J R, Kodama T, Shima A, Tomita Y 2001 J. Appl. Phys. 89 12
[23] Tomita Y, Kodama T, Shima A 1991 Appl. Phys. Lett. 59 3
[24] Peter G, Rok P, Janez M 2007 J. Appl.Phys. 102 094904
[25] Li M, Wang S S, Wei J F, Zhong X 2013 J. Ship Mech. 17 1230(in Chinese) [李梅, 王树山, 魏继锋, 仲霄 2013 船舶力学 17 1230]
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[1] Gao J H, Lu L, He Y Y 2010 Shallow water explosion and its destruction effect (Beijing: National Defence Industry Press) pp38-41 (in Chinese) [高建华, 陆林, 何洋扬2010浅水中爆炸及其破坏效应(北京: 国防工业出版社)第38–41页]
[2] Zhi B W, Zhang Z J, Li J, Ma Y X 2009 Trans. BIT 29 5 (in Chinese) [郅斌伟, 张志江, 李健, 马雨祥2009北京理工大学学报 29 5]
[3] Kedrinskii V K (translated by Knyazeva S Y) 2005 Hydrodynamics of Explosion Experiments and Models (New York: Springer) pp297-347
[4] Jiang G Y, Jin H, Li B 2009 Sci. Technol. Review 27 87(in Chinese) [蒋国岩, 金辉, 李兵 2009 科技导报 27 87]
[5] Han R, Zhang A M, Li S 2014 Chin. Phys. B 23 034703
[6] Wang C H, Cheng J C 2013 Chin. Phys. B 22 014304
[7] Ni B Q, Li S, Zhang A M 2013 Acta Phys. Sin. 62 124704(in Chinese) [倪宝玉, 李帅, 张阿漫 2013 62 124704]
[8] Li S, Zhang A M 2014 Acta Phys. Sin. 63 054705(in Chinese) [李帅, 张阿漫 2014 63 054705]
[9] Blake J R, Taib B B, Doherty G 1987 J. Fluid Mech. 181 197
[10] Shervani T M T, Dadvand A, Khoo B C, Nobari M R H 2009 Theoret. Comput. FluidDynamics 23 297
[11] Wang Q X, Yeo K S, Khoo B C, Lam K Y 1996 Theoret. Comput. Fluid Dynamics 8 73
[12] Blake J R, Gibson D C 1981 J. Fluid Mech. 111 123
[13] Cole R H (translated by Luo Y J, Han R Z, Guan X) 1965 Underwater Explosion (Beijing: National DefenceIndustry Press) pp231-253 (in Chinese) [库尔R H 著(罗耀杰, 韩润泽, 官信译) 1965水下爆炸(北京: 国防工业出版社)第231–253页]
[14] Swisdak M M 1978 ADA 056694
[15] Higdon C E 1994 ADA 294929
[16] Qian D, Yuan H 2001 Torpedo Technology 9 49(in Chinese) [钱东, 袁辉 2001 鱼雷技术 9 49]
[17] Zhu Q H 1999 Inform. Comm. Contr. Syst. Simul. 11 14(in Chinese) [朱庆和 1999 情报指挥控制系统和仿真技术 11 14]
[18] Connor J G, Higdon C E 1996 NSWCDD/TR-96/178
[19] Abdolrahman D, Khoo B C, Mohammad T, Shervani T 2009 Res. Art. 46 419
[20] Chahine G L, Frederick G S, Lambrecht C J,Harris G S, Mair H U 1995 SAVIAC Proceedings 66th Shock and Vibrations Symposium Biloxi, Oct. 30-Nov. 3, 1995 p265
[21] Zhang A M, Wang C, Wang S P, Cheng X D 2012 Acta Phys. Sin. 61 084701(in Chinese) [张阿漫, 王超, 王诗平, 程晓达 2012 61 084701]
[22] Robinson P B, Blake J R, Kodama T, Shima A, Tomita Y 2001 J. Appl. Phys. 89 12
[23] Tomita Y, Kodama T, Shima A 1991 Appl. Phys. Lett. 59 3
[24] Peter G, Rok P, Janez M 2007 J. Appl.Phys. 102 094904
[25] Li M, Wang S S, Wei J F, Zhong X 2013 J. Ship Mech. 17 1230(in Chinese) [李梅, 王树山, 魏继锋, 仲霄 2013 船舶力学 17 1230]
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