Results 11 to 20 of about 29,648 (213)
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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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
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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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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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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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Visualized experimental study on the process of high-pressure gas jet impacting on liquid-water column [PDF]
AIP AdvancesTo investigate the interaction laws governing the interaction between a gas jet and a liquid medium during the process of liquid-balanced launching, and to elucidate the influence of high-temperature gas on the characteristics of the gas–liquid ...
Jian Wang +3 more
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Meitan xuebao, 2023 There are some bottleneck problems in the pressure relief and antireflection technology of submerged water jet in a downward hole, such as weak impact force, low coal breaking efficiency, less coal cutting and poor adaptability.
Yanwei LIU +8 more
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Study on the optimal parameter matching model of rotary cutting coal-rock for abrasive water jet
Meitan kexue jishuAs coal mining extends deeper, pure water jet technology is gradually unable to meet the demand for coal penetration enhancement under high stress and high coal rock strength conditions.
Jianping WEI +4 more
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MATEC Web of Conferences, 2017 The paper presents a preliminary experimental study on processing composite materials (CFRP) using abrasive water jet cutting (AWJC) process, analysing the possibilities of occurrence of material delamination.
Popan Ioan Alexandru +2 more
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Progress on the hydraulic measures for grid slotting and fracking to enhance coal seam permeability
International Journal of Mining Science and Technology, 2017 A method of hydraulic grid slotting and hydraulic fracturing was proposed to enhance the permeability of low permeability coal seam in China. Micro-structural development and strength characteristics of coal were analysed to set up the failure criterion ...
Yiyu Lu +4 more
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