Numerical simulations of non-spherical bubble collapse [PDF]
, 2009 A high-order accurate shock- and interface-capturing scheme is used to simulate the collapse of a gas bubble in water. In order to better understand the damage caused by collapsing bubbles, the dynamics of the shock-induced and Rayleigh collapse of a ...
Colonius, Tim, Johnsen, Eric
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Impinging Performance of High-Pressure Water Jets Emitting from Different Nozzle Orifice Shapes
Geofluids, 2020 The impinging pressure of a water jet is a key factor in engineering applications, and the jet shape has a great influence on this pressure. In this paper, five different nozzle shapes were designed, and impacting tests were conducted based on a self ...
Fei Huang +3 more
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Rock Breaking Performance of TBM Disc Cutter Assisted by High-Pressure Water Jet
Applied Sciences, 2020 A high-pressure water jet can break rock efficiently, which is of great potential to overcome the problems of a tunnel boring machine (TBM) in full-face hard rock tunnel digging, such as low digging efficiency and high disc cutter wear rate.
Fengchao Wang +4 more
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Formation Principle and Characteristics of Self-Supercharging Pulsed Water Jet
Chinese Journal of Mechanical Engineering, 2022 High-pressure pulsed water jet technology has considerable development potential in the field of rock fragmentation. To overcome the shortcomings of existing pulsed jets, a self-supercharging pulsed water jet (SSPWJ) generation method is proposed, which ...
Zhaolong Ge +6 more
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A study of cavitation induced surface erosion in abrasive waterjet cutting systems [PDF]
, 2008 Current jet cutting systems experience severe nozzle erosion and associated maintenance and downtime costs. An experimental investigation was conducted to qualitatively and quantitatively analyse the generation of cavitation in a high pressure water jet ...
Madadnia, J +3 more
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Study on the Influence of Bottom Hole Confining Pressure on High-Pressure Jetting Techniques
Shiyou jixie, 2021 As the development of oil and gas resources continues to deepen, the impact of bottom hole confining pressure on high-pressure water jetting has become more and more prominent. To compare the rock-breaking performance of high-pressure water jet under the
Li Jingbin +5 more
doaj
Experimental study on jet flow characteristics of fire water monitor
The Journal of Engineering, 2018 Fire water monitor is an important part of a sprinkler system. In this study, the jet flow characteristics of the external jet of the fire water monitor are studied. The water jet system is used to launch the water jet experiment under six pressures.
Xiumei Liu +3 more
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Pulsirajući vodeni mlaz dobiven multiplikacijom impulsa [PDF]
, 2016 First theoretical papers, summarizing the high mechanical energy cumulation when high-speed drops impact on the solid surface as a result of the water hammer effect, have been known since 1960’s.
Dvorský, Richard +2 more
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Field Study on the Waterstop of the Rodin Jet Pile Method in a Water-Rich Sandy Gravel Stratum
Applied Sciences, 2019 Due to the increasing depths of underground urban construction, the surrounding environment and hydrogeological conditions are becoming increasingly complex, and conventional high-pressure rotary jet grouting has become unable to meet construction needs.
Chengli Guan, Yuyou Yang
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Shock-induced collapse of a gas bubble in shockwave lithotripsy [PDF]
, 2008 The shock-induced collapse of a pre-existing nucleus near a solid surface in the focal region of a lithotripter is investigated. The entire flow field of the collapse of a single gas bubble subjected to a lithotripter pulse is simulated using a high ...
Colonius, Tim, Johnsen, Eric
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