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Effect of the Al/O ratio on the Al reaction of aluminized RDX-based explosives 被引量:4
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作者 赵倩 聂建新 +2 位作者 张伟 王秋实 焦清介 《Chinese Physics B》 SCIE EI CAS CSCD 2017年第5期259-264,共6页
Aluminum(Al) powders are used in composite explosives as a typical reducing agent for improving explosion performance. To understand energy release of aluminum in aluminized RDX-based explosives, a series of thermal... Aluminum(Al) powders are used in composite explosives as a typical reducing agent for improving explosion performance. To understand energy release of aluminum in aluminized RDX-based explosives, a series of thermal measurements and underwater explosion(UNDEX) experiments were conducted. Lithium fluoride(LiF) was added in RDX-based explosives, as a replacement of aluminum, and used in constant temperature calorimeter experiments and UNDEXs. The influence of aluminum powder on explosion heat(Qv) was measured. A rich supply of data about aluminum energy release rate was gained. There are other oxides(CO2, CO, and H2O) in detonation products besides alumina when the content of RDX is maintained at the same levels. Aluminum cannot fully combine with oxygen in the detonation products. To study the relationship between the explosive formulation and energy release, pressure and impulse signals in underwater experiments were recorded and analyzed after charges were initiated underwater. The shock wave energy(Esk), bubble energy(Eb), and total energy(Et) monotony increase with the Al/O ratio, while the growth rates of the shock wave energy,bubble energy, and total energy become slow. 展开更多
关键词 detonation explosion explosive underwater bubble calorimeter combine initiated charges powders
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Bubble dynamics and its applications 被引量:15
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作者 Shi-Ping Wang A-Man Zhang +2 位作者 Yun-Long Liu Shuai Zhang Pu Cui 《Journal of Hydrodynamics》 SCIE EI CSCD 2018年第6期975-991,共17页
Bubbles have very important applications in many fields such as shipbuilding engineering, ocean engineering, mechanical engineering, environmental engineering, chemical engineering, medical science and so on. In this ... Bubbles have very important applications in many fields such as shipbuilding engineering, ocean engineering, mechanical engineering, environmental engineering, chemical engineering, medical science and so on. In this paper, the research status and the development of the bubble dynamics in terms of theory, numerical simulation and experimental technique are reviewed, which cover the underwater explosion bubble, airgun bubble, spark bubble, laser bubble, rising bubble, propeller cavitation bubble, water entry/exit cavitation bubble and bubble dynamics in other fields. Former researchers have done a lot of researches on bubble dynamics and gained fruitful achievements. However, due to the complexity of the bubble motion, many tough mechanical problems remain to be solved. Based on the research progress of bubble dynamics, this paper gives the future research direction of bubble dynamics, aiming to provide references for researches related to bubble dynamics. 展开更多
关键词 bubble CAVITATION underwater explosion bubble high pressure airgun bubble spark bubble laser bubble rising bubble
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Using the shaping filter for removing the effcets of the bubble pulses of explosive charge
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作者 LI Saimu, ZHOU Yinhui, WU Lixin and WANG Rulin(Ocean University of Qingdao, Qingdao 266003) 《Chinese Journal of Acoustics》 1991年第3期264-273,共10页
Using the shaping filter to remove the effects of the bubble pulses of explosive charge, we obtained the impulse response function of the sea bottom. The result is quite satisfactory.
关键词 Using the shaping filter for removing the effcets of the bubble pulses of explosive charge LENGTH
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