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Journal articles on the topic 'High pressure jet'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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1

Dahlman, P. "A comparison of temperature reduction in high-pressure jet-assisted turning using high pressure versus high flowrate." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 216, no. 4 (2002): 467–73. http://dx.doi.org/10.1243/0954405021520067.

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Cooling with high pressures in turning operations is an effective method for providing higher productivity. Reduced temperature and improved chip control are dependent on the pressure and flowrate of the fluid jet. The aim of the tests was to investigate how the relationship between pressure and flowrate affects the heat dissipation from the cutting zone. Tests were performed on two steel grades and one titanium alloy, allowing the same jet momentum for all materials to enable comparison between pressure and flow. Conventional cooling was used as a reference. Measurements were conducted with t

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2

Weifeng, Wu*1 Zhao Zhang1 Liangwei Yang1 Zhijun Wu1 &. Juan Nie2. "AN INVESTIGATION OF PRESSURE PULSATION AT SOLID SURFACE UNDER IMPACT OF HIGH SPEED WATER-AIR JET." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY 8, no. 8 (2019): 97–106. https://doi.org/10.5281/zenodo.3369216.

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It was published that the water-air two-phase jet could show better impact erosion ability than the common water jet. However, its mechanism remains unproved. This paper tried to investigate the mechanism. Simulation of an air bubble in the water jet impacting on solid surface was carried out. It showed that the bubble burst near the solid surface resulted in pressure pulsation on the solid surface. A test platform was established to compare the pressure pulsations resulted by the water-air jet and water jet impacting on solid surface, respectively. Results validated that impacting pressure pu

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3

&NA;. "High-pressure water jet injury." Journal of Trauma: Injury, Infection, and Critical Care 26, no. 7 (1986): 689. http://dx.doi.org/10.1097/00005373-198607000-00099.

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4

Miller, P., and M. Wilson. "Wall jets created by single and twin high pressure jet impingement." Aeronautical Journal 97, no. 963 (1993): 87–100. http://dx.doi.org/10.1017/s0001924000025173.

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SummaryAn extensive experimental investigation into the nature of the wall jets produced by single and twin normal jet impingement has been undertaken. Wall jet velocity profiles have been recorded up to 70 jet diameters from the impingement point, at pressures representative of current VStol technology. The tests used fixed convergent nozzles, with nozzle height and spacing and jet pressure being varied. Single jet impingement displays a consistent effect of nozzle height on wall jet development. For twin jet cases a powerful reinforcement exists along the wall jet interaction plane. Remote f

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5

Matthujak, Anirut, Chaidet Kasamnimitporn, Wuttichai Sittiwong, and Kulachate Pianthong. "Effect of Stand-Off Distance on Impact Pressure of High-Speed Water Jet Injected in Water." Applied Mechanics and Materials 52-54 (March 2011): 1873–78. http://dx.doi.org/10.4028/www.scientific.net/amm.52-54.1873.

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This study is to measure the impact pressure of high-speed water jet injected in water at the stand-off distance from the nozzle exit. The high-speed water jets are generated by the impact of a projectile, which known as impact acceleration method, launched by Horizontal Single Stage Power Gun. The maximum averaged jet velocity of about 374.24 m/s in water was generated in this experiment. The impact pressure of high-speed water jet in water at the stand-off distance 15, 20, 30 and 40 mm from the nozzle exit was measured by the PVDF pressure sensor. Moreover, the impact phenomena of the jet we

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6

Huang, Fei, Jianyu Mi, Dan Li, and Rongrong Wang. "Impinging Performance of High-Pressure Water Jets Emitting from Different Nozzle Orifice Shapes." Geofluids 2020 (August 14, 2020): 1–14. http://dx.doi.org/10.1155/2020/8831544.

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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-designed experimental platform using a PVDF piezoelectric film sensor and a high-speed camera to record the impacting data. Additionally, the computational fluid dynamics (CFD) method was also applied to study the velocity distribution. The results show that the pressure profiles of different water jet shapes impacting onto a solid surface present

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7

Ni, Jun, Lianhua Hu, Shixian Chen, and Zhengye Wang. "Flow Field Simulation and Parametric Design of High-pressure Water Jet Cutting Leather Based on Fluent." Architecture Engineering and Science 3, no. 2 (2022): 155. http://dx.doi.org/10.32629/aes.v3i2.900.

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This paper studies the flow field simulation process of high-speed water jet cutting leather. Based on the water jet impact model, Fluent is used to analyze different jet pressures, spray distances and nozzles diameter. The effect of the outlet diameter on the jet impact velocity and the impact area is studied. Through the study of three factors, it is found that the jet pressure has the greatest and most direct influence on the jet velocity. Therefore, adjusting the jet pressure is an important means to successfully complete the water jet cutting. The above research has a good guiding for cut

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8

Li, Hai Cheng, Xu Jing Zhang, and Fu Min Liang. "Research on Hole Making Mechanism of High Pressure Hydraulic Perforation." Applied Mechanics and Materials 590 (June 2014): 96–100. http://dx.doi.org/10.4028/www.scientific.net/amm.590.96.

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In this paper, we integrated use hydraulics, seepage flow mechanics, rock mechanics, and finite element simulation analysis and other methods to study the rock fragmentation mechanism of high pressure water jet. We make tensile stress - crack expansion comprehensive rock fragmentation model for the screw drilling of high pressure water jet. We make finite element simulation according to the mechanism of integrated model of high pressure water jet process, to analysis the internal rock stress distribution and external rock stress distribution of the fluid, and come to the reasonable number of h

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9

Guo, Fumin, Chunyan Song, Qingxin Ba, Jiaxin Zhang, Zhonglong He, and Xuefang Li. "Modeling of jet spreading and flame hazard distances for high pressure hydrogen releases." Journal of Physics: Conference Series 2723, no. 1 (2024): 012003. http://dx.doi.org/10.1088/1742-6596/2723/1/012003.

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Abstract Hydrogen is a promising clean and sustainable energy carrier. Hydrogen is usually stored at high pressure due to its low density. Hydrogen releases from high pressure storage can result in underexpanded jets that will mix with air, forming a large combustible cloud. If the jets are ignited, jet flames will form with a large hazard area. This study simulated hydrogen jets and jet flames for storage pressures of 1~70 MPa and nozzle diameters of 1~2 mm using the HyRAM software. The results show that the jet diffusion distance increased with the hydrogen stagnation pressure and the nozzle

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10

Zhong, Dong Jie. "Dispersion Properties of High Pressure Emulsified Jets." Applied Mechanics and Materials 446-447 (November 2013): 437–42. http://dx.doi.org/10.4028/www.scientific.net/amm.446-447.437.

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Atomization quality affects directly burning process in the cylinder so as to further impact on dynamic characteristics, economical efficiency and emission standard. In theory, based on influences of jet dispersion properties for cavitations and jet development model of the mixture of emulsified oil and gas, it is found that high pressure emulsified oil contains lots of tiny water drops, which can increase a atomizing angle for spraying. Compared with the atomizing shapes of absolute diesel oil and emulsified diesel oil at various time, the results show: jet form of mixture changes dynamical c

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11

Sun, Zhi, Yan Wei Sui, Jun Li, and Yan Ni Zhou. "Structure of Emulsion Cavitation Jet and Jet Peening Impact on the Fatigue of Plan Carbon Steel Q235A." Advanced Materials Research 189-193 (February 2011): 476–83. http://dx.doi.org/10.4028/www.scientific.net/amr.189-193.476.

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Due to developing the strengthening effect of liquid jet peening on the surface modification for metallic materials, in this study, an emulsion jet peening is produced by injecting a high-speed emulsion jet into an emulsion filled tank. The test system and fixed emulsion of cavitation jet was developed. High speed photography technique was used to observe and analysis the structure of emulsion cavitation jet at various upstream pressures . The results indicate that the structure of emulsion cavitation jet in terms of jet impact pressure, intensive degree and uniformity is better than that wate

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12

Ma, Fei, Yong Li, and Zhi Ming Song. "Jet Performance Testing of High-Pressure Waterjet Descaling Nozzles." Advanced Materials Research 314-316 (August 2011): 2408–13. http://dx.doi.org/10.4028/www.scientific.net/amr.314-316.2408.

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Descaling nozzles, generator of high-speed waterjets, are key components in high-pressure waterjet descaling system. Jet performance of the nozzle has great effect on hot-rolling steel billet descaling. Most domestic manufactures provide nozzle structural data and impact force scale with rated pressure, such as orifice diameter, injecting angle and scattering angle. However, jet distribution shape and jet impact force distribution and strength, which are major parameters affecting steel billet descaling quality, are not available from manufactures. A jet performance test device for nozzles was

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13

Habak, Malek, Jean Lu Lebrun, Stefan Waldmann, Patrick Robert, and Cyril Fischer. "Residual Stress in High-Pressure Water Jet Assisted Turning of Austenitic Stainless Steel." Materials Science Forum 524-525 (September 2006): 581–86. http://dx.doi.org/10.4028/www.scientific.net/msf.524-525.581.

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In this paper, the effect of a high pressure water jet, directed into the tool chip interface, on surface residual stresses and chip shape, in face turning of AISI 316L stainless steel has been investigated. Tests have been carried out with a standard cutting tool. This tool is not specifically meant for the machining of this type of material. The cutting speeds used were 80 m/min and 150 m/min, with a constant feed rate of 0.1 mm/rev and a constant cutting depth of 0.1 mm. Three jet pressures were used: 20, 50 and 80 MPa. Residual stress profiles have been analysed using the X-ray diffraction

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14

SHIMADA, Sohei, and Toshiyuki OOSAWA. "Development of High-Pressure Jet Burner." Shigen-to-Sozai 110, no. 3 (1994): 215–19. http://dx.doi.org/10.2473/shigentosozai.110.215.

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15

Li, Xiao Hong, Hu Si, and Yan Ming Xie. "Numerical Simulation of Rock Fracture under High Pressure Water Jet." Key Engineering Materials 462-463 (January 2011): 785–90. http://dx.doi.org/10.4028/www.scientific.net/kem.462-463.785.

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The evolvement of rock fracture is a complicated and nonlinear dynamic problem. On the assumption that rock is homogeneous and isotropic, a numerical model was developed to simulate rock fracture under high pressure water jet based on continuum damage mechanics and nonlinear finite element method. The dynamic effect of rock was simulated by the dynamic contact method under high pressure water jet. The numerical simulation results showed that rock failure occurred within several milliseconds and the evolvement of it was for step under high pressure water jet and that the stress propagation in r

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16

Nakatsukasa, Ryuta, Mamoru Hayashi, Tatsumi Ohno, Toshiyuki Obikawa, Takayuki Kumakiri, and Hidebumi Takahashi. "B022 High Speed Machining of Stainless Steel Using Low-Pressure Jet Coolant." Proceedings of International Conference on Leading Edge Manufacturing in 21st century : LEM21 2013.7 (2013): 255–58. http://dx.doi.org/10.1299/jsmelem.2013.7.255.

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17

Pan, Yue, Shengyu Zhai, Kangchao Pei, Hao Yuan, and Fulin Huo. "Rock-Breaking Characteristics of High-Pressure, Dual-Stranded Water Jets." Processes 11, no. 9 (2023): 2562. http://dx.doi.org/10.3390/pr11092562.

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Because of the unclear understanding of the characteristics associated with coupled rock breaking using multiple water jets, a numerical model combining smoothed particle hydrodynamics (SPH) and the finite element method (FEM) was established to investigate the rock-breaking capacity of a high-pressure, double-stranded water jet structure. The effectiveness of this model was verified through field experiments. The study further examined the specific energy required for rock breaking using the high-pressure double water jets and analyzed the effects of jet pressure, nozzle diameter, jet impact

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18

Shi, H. H., J. E. Field, and C. S. J. Pickles. "High Speed Liquid Impact Onto Wetted Solid Surfaces." Journal of Fluids Engineering 116, no. 2 (1994): 345–48. http://dx.doi.org/10.1115/1.2910278.

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The mechanics of impact by a high-speed liquid jet onto a solid surface covered by a liquid layer is described. After the liquid jet contacts the liquid layer, a shock wave is generated, which moves toward the solid surface. The shock wave is followed by the liquid jet penetrating through the layer. The influence of the liquid layer on the side jetting and stress waves is studied. Damage sites on soda-lime glass, PMMA (polymethylmethacrylate) and aluminium show the role of shear failure and cracking and provide evidence for analyzing the impact pressure on the wetted solids and the spatial pre

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19

Mitsutake, Yuichi, and Masanori Monde. "Ultra High Critical Heat Flux During Forced Flow Boiling Heat Transfer With an Impinging Jet." Journal of Heat Transfer 125, no. 6 (2003): 1038–45. http://dx.doi.org/10.1115/1.1621899.

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An ultra high critical heat flux (CHF) was attempted using a highly subcooled liquid jet impinging on a small rectangular heated surface of length 5∼10mm and width 4 mm. Experiments were carried out at jet velocities of 5∼60m/s, a jet temperature of 20°C and system pressures of 0.1∼1.3MPa. The degree of subcooling was varied from 80 to 170 K with increasing system pressure. The general correlation for CHF is shown to be applicable for such a small heated surface under a certain range of conditions. The maximum CHF achieved in these experiments was 211.9 MW/m2, recorded at system pressure of 0.

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20

Takemura, Ryohei, Hiroshi Fukuoka, Shinichi Enoki, Shigeto Nakamura, and Kazuki Hiro. "Observation of Supersonic Jet Using Small Volume High-Pressure Shock Tube." Materials Science Forum 910 (January 2018): 143–48. http://dx.doi.org/10.4028/www.scientific.net/msf.910.143.

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The unsteady supersonic jet and the shock wave injected by the small volume shock tube are experimentally studied in this paper. The experimental was performed by the background oriented schlieren method. The main parameters for the jet are the pressure ratio by the high pressure chamber/ a back pressure 10.9-53.0 and the length of high pressure chamber/diameter ratio 1 and 10. The velocity of the shock wave and supersonic jet were estimated by using the principle of the background oriented schlieren method. The results showed that the influence of the length of the high pressure chamber on th

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21

Liu, Zeng Wen, Chuan Zhen Huang, H. T. Zhu, H. L. Liu, and B. Zou. "Study on Jet Formation and Modeling for High Pressure Abrasive Water-Jet." Key Engineering Materials 487 (July 2011): 468–72. http://dx.doi.org/10.4028/www.scientific.net/kem.487.468.

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High pressure abrasive water jet (HPAWJ) machining has many advantages in hard brittle material processing. In this paper, the hole formation on stone by HPAWJ is analyzed based on brittle and plastic fracture theories. The formation and construction of jet are studied. The distribution of jet velocity, abrasives and energy in the jet-beam section of HPAWJ is analyzed. It is shown that the cross-section of the hole is characterized by a ‘Reverse-bell’ shape on stones by a HPAWJ. The jet velocity of HPAWJ gets lower from jet center to jet margin and it’s distribution is consistent with normal d

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22

Bilz, Martin, and Eckart Uhlmann. "Dry and Residue-Free Cutting with High-Pressure CO₂-Blasting." Advanced Materials Research 1018 (September 2014): 115–22. http://dx.doi.org/10.4028/www.scientific.net/amr.1018.115.

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Jet cutting with high-pressure CO2 jets has the potential for a dry and residue-free machining of materials. However, a high-pressure CO2 blasting plant as well as experimental expertise for the continuous jet cutting with high-pressure CO2 at atmospheric conditions are not available. A pilot plant for the continuous jet cutting with liquid carbon dioxide was developed and realized at the Fraunhofer-Institute for Production Systems and Design Technology. Identical cutting tests were carried out in polyurethane blocks of different Shore D-hardness and density with high-pressure CO2 and water je

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23

Wu, Guang, Jia Hui Song, Ke Bang Hou, and Cong Dong Wang. "Application of High-Pressure Water Jet in Mine." Advanced Materials Research 1033-1034 (October 2014): 1323–26. http://dx.doi.org/10.4028/www.scientific.net/amr.1033-1034.1323.

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The principle of high pressure water jet technology and its unique characteristics and advantages were introduced in this paper, specific applications of the high pressure water jet technology in coal mine production and security aspects were analyzed. It was widely used in coal mine tunneling, preventing and controlling ground pressure and gas outburst, the application of the dedusting fan, cutting the coal mine machine and cleaning and descaling downhole equipment. Finally, the feasibility and safety of the high pressure water jet technology in coal mine was summarized, and the article made

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24

Ma, Zhong Fei, Peng Gang Jin, and Feng Zhao. "Test on Characteristics of the High-Pressure Secondary Rotary Water Gas Jet Ventilation." Advanced Materials Research 594-597 (November 2012): 2167–70. http://dx.doi.org/10.4028/www.scientific.net/amr.594-597.2167.

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In order to reduce the concentration of explosive gas, experimental research was carried out on the high pressure secondary rotating water jet ventilation characteristic, and the principle of high pressure secondary rotating water jet ventilation was analyzed. Experiments of the relationship between pressure and the suction air flow characteristics were carried out with different structure of jet pipe, different structure of nozzles, different throat in high pressure single rotating water jet ventilation, and the secondary rotating ventilation characteristic were tested with different guide va

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25

Mirmohammadsadeghi, Sayed E., and H. Amirabadi. "High-pressure jet-assisted turning of AISI 304: Experimental and multi-objective optimization approach." Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering 232, no. 6 (2017): 734–50. http://dx.doi.org/10.1177/0954408917738488.

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High-pressure jet-assisted turning is an effective method to decrease the cutting force and surface roughness. Efficiency of this process is related to application of proper jet pressure proportional to other process parameters. In this research, experiments were conducted for high-pressure jet-assisted turning in finishing AISI 304 austenitic stainless steel, based on response surface method. Against the expectations, the maximum jet pressure could not lead to the most efficient results, which means that applying high-pressure jet-assisted turning without considering optimal process parameter

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26

Votavová, Helena, and Michal Pohanka. "Study of Water Jet Collision of High Pressure Flat Jet Nozzles for Hydraulic Descaling." Applied Mechanics and Materials 821 (January 2016): 152–58. http://dx.doi.org/10.4028/www.scientific.net/amm.821.152.

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One of the most effective methods for descaling hot-rolled steel products is performed using highpressure flat jet nozzles. These descaling nozzles are arranged in rows in hot rolling mills and areset in such a way that each adjoining pair of nozzles creates an overlapping area of water jet streams.Good homogeneity of the pressure distribution over the width of the hot-rolled plate is often used as anindicator of quality of the homogeneity of descaling. The presented laboratory measurements examineone pair of adjoining nozzles with a particular focus on the pressure distribution in the overlap

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27

Zhang, Dong Su, Gan Lin Cheng, and Jian Deng. "Research on High-Pressure Water Jet Target Object Detection Parameter Optimization." Advanced Materials Research 591-593 (November 2012): 771–76. http://dx.doi.org/10.4028/www.scientific.net/amr.591-593.771.

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By using the unique characteristics of high pressure water jet, sound test, analysis and recognition techniques combined with high pressure water jet, collecting target reflected sound signal characteristic value, then by the analysis processing, to achieve recognition for classification purposes, can form a kind of brand-new landmine detection method. For the ultimate realization of the target of effective detection and classification, it must be determined on the reflected sound signal of water jet hydraulic parameters and reasonable choice of the walking device and a signal acquisition devi

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28

Beithou, N., and H. S. Aybar. "High-Pressure Steam-Driven Jet Pump—Part II: Parametric Analysis." Journal of Engineering for Gas Turbines and Power 123, no. 3 (2000): 701–6. http://dx.doi.org/10.1115/1.1365935.

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The steam-driven jet pump (SDJP) is a device without moving parts, in which steam is used as an energy source to pump cold water from a pressure much lower than the steam pressure to a pressure higher than the steam pressure. In the previous part of this study, the mathematical modeling of the SDJP has been done, and reported. The results of the mathematical modeling of the SDJP have been compared with Cattadori’s experimental results. The comparisons show that the experimental and calculated pressure distributions are in good qualitative agreement. For the same steam inlet pressure of 8.7 MPa

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29

Moustafa, G. H. "Further study of high speed single free jets." Aeronautical Journal 97, no. 965 (1993): 171–76. http://dx.doi.org/10.1017/s0001924000026129.

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AbstractExperiments to study the behaviour of a compressible free jet issuing from an axisymmetric convergent nozzle are reported. Detailed measurements of the mean flow field for subsonic, sonic and underexpanded sonic jets was made within the pressure ratio range of 1.13 to 4. The results show that the spread and decay rates of the jet vary significantly with pressure ratio. The results further indicate the radial velocity/total pressure collapse within the two-dimensional shear layer data. The underexpanded jet propagates to a greater distance downstream than the low speed jets; this leads

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30

BABA, Keishi, Zenjiro HOKAO, and Sohei SHIMADA. "Development of High Pressure Flame Jet Burner." Journal of the Mining Institute of Japan 101, no. 1168 (1985): 357–61. http://dx.doi.org/10.2473/shigentosozai1953.101.1168_357.

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31

Brennan, S. L., D. V. Makarov, and V. Molkov. "LES of high pressure hydrogen jet fire." Journal of Loss Prevention in the Process Industries 22, no. 3 (2009): 353–59. http://dx.doi.org/10.1016/j.jlp.2008.12.007.

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32

van Vught, A. J., A. Versprille, and J. R. C. Jansen. "Alveolar pressure during high-frequency jet ventilation." Intensive Care Medicine 16, no. 1 (1990): 33–40. http://dx.doi.org/10.1007/bf01706322.

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33

Menovsky, Tomas, and Dirk De Ridder. "Hydrodissection versus high-pressure water jet dissection." Microsurgery 27, no. 4 (2007): 354. http://dx.doi.org/10.1002/micr.20368.

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34

Nguyễn, Xuân Bàng, Viết Chinh Mai, Đức Tiệp Phạm та Hoàng Long Nguyễn. "Mô phỏng số ứng xử của tấm bê tông dưới tác động của tia nước tốc độ cao". Vietnam Institute for Building Science and Technology 2025, vi.vol1 (2025): 12–19. https://doi.org/10.59382/j-ibst.2025.vi.vol1-2.

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The high-pressure water jet technology has been widely applied in the construction industry. However, understanding the complicated interactions between high-velocity water jets and concrete surfaces remains a significant challenge. This paper employs a numerical simulation method using the Coupled Eulerian-Lagrangian (CEL) technique to analyze the behavior of concrete slabs under the impact of high-velocity water jets. The study focuses on the pressure distribution at the impact zone and the deformation characteristics of concrete under water jet velocities ranging from 100 m/s to 1000 m/s. T

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35

Yang, Hao, Meng Meng Niu, Dong Su Zhang, and Jing Xi Li. "The Research of Intelligent High-Pressure Water Jet Target Detection Experimental System." Advanced Materials Research 791-793 (September 2013): 866–69. http://dx.doi.org/10.4028/www.scientific.net/amr.791-793.866.

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As a new technology, high-pressure water jet technology is widely used in various fields .However high-pressure water jet is used for the detection of the target material in China and abroad, is still in its infancy. So this article studies on high-pressure water jet target material detection technology .This paper aims to study the target object detection experimental device and the follow-up process of detect sound signal.

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36

Nie, Shishuai, Peng Cai, Huan Liu, Yonghao Zhou, Yi Liu, and Anfeng Yu. "Experimental Study on Cryogenic Compressed Hydrogen Jet Flames." Fire 7, no. 11 (2024): 406. http://dx.doi.org/10.3390/fire7110406.

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Cryogenic compressed hydrogen (CcH2) technology combines the advantages of high pressure and low temperature to achieve high hydrogen storage density without liquefying the hydrogen, which has broad application prospects. However, the safety concerns related to cryogenic hydrogen need to be carefully addressed beforehand. In the present work, cryogenic hydrogen jet flames are experimentally investigated for various release pressures and initial temperatures. The flame length and thermal radiation flux were measured for horizontally releasing with nozzle diameters of 0.5–2 mm, temperatures rang

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37

Liu, Da, Weijiang Xie, Jianglin Gao, et al. "Study on the Construction Method and Effects of Ipsilateral, Multi-Nozzle, High-Pressure Jet Grouting Cut-Off Wall." Sustainability 14, no. 16 (2022): 10383. http://dx.doi.org/10.3390/su141610383.

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High-pressure jet grouting is widely used in the construction of cut-off wall in hydraulic engineering. Compared to the high-pressure jet grouting used for foundation improvement, the high-pressure jet grouting cut-off wall of hydraulic engineering has lower requirements for the advance consolidation and provision of bearing capacity, and more focus on providing an anti-seepage effect and ensuring the continuous integrity of the wall. In the past, the research on high-pressure jet grouting focused more on the application to foundation treatments, and the research on the construction efficiency

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38

Liu, Lai Guo, Xiao Jun Zhang, and Song Lin Nie. "CFD Flow Model and its Effects on the Calculations of High Pressure Sprays." Applied Mechanics and Materials 553 (May 2014): 174–79. http://dx.doi.org/10.4028/www.scientific.net/amm.553.174.

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The computational fluid dynamics (CFD) model has been used to investigate the two-phase flow phenomena such as high-pressure water jet. High-pressure water jet is a new technology and develops rapidly due to its advantages in recent years. In this research, the effects of different models on the macroscopic parameters of jet propagation characteristics of high pressure water jet have been investigated numerically through the CFD technique. The simulations of the water jet with three kinds of k-ε models (i.e., standard, RNG, and realizable k-ε models) have been compared under the same condition

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Cao, Li Ping, Shi Liu, Yao Song Huang, Qian Liu, and Zhi Hong Li. "Study of High-Pressure Waterjet Characteristics Based on CFD Simulation." Applied Mechanics and Materials 224 (November 2012): 307–11. http://dx.doi.org/10.4028/www.scientific.net/amm.224.307.

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Nozzle spacing is an important factor influencing the effect of high-pressure water jet cleaning. When the nozzle incidence angle, the deflection angle and the target distance are determined, the size of the nozzle spacing determines the overlap of the water jet, the overlap is too large or too small will reduce the cleaning effect. In this paper ,using CFD software to simulate the flow field inside and outside of the high-pressure water jet nozzle, analysis the jet axial velocity, pressure distribution, and discussed this changes in the case of different spacing between the nozzles when the n

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40

Yi, Xian Zhong, Song Lin Yi, Hui Shu, Yuan Qiang Ji, and Sheng Zong Jiang. "Flow-Field and Hydromechanics Analysis of High Pressure Water-Jet Single Nozzle in Radial Horizontal Drilling." Advanced Materials Research 952 (May 2014): 186–89. http://dx.doi.org/10.4028/www.scientific.net/amr.952.186.

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The technology of high pressure water jet in radial drilling has currently been used widely at home and abroad. A numerical simulation and analysis of the internal and external flow fields of jet nozzle will 1ay the foundation for the further study of high pressure water jet rock breaking. The physical and mathematical models of axial-symmetrical submerged jet rock breaking with single nozzle were established. And a numerical simulation of the internal and external flow fields of high pressure water jet nozzle in radial drilling was conducted with the Fluent software. The 1aws of the internal

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Liu, Lei, Maolong Bai, Zhihao Wang, et al. "Investigation of Flow Control in an Ultra-Compact Serpentine Inlet with Fluidic Oscillators." Aerospace 11, no. 12 (2024): 1011. https://doi.org/10.3390/aerospace11121011.

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For optimal aerodynamic efficiency of specific ultra-compact serpentine intake, fluid oscillators are utilized to regulate airflow. This study employs advanced numerical simulation techniques to examine the effects of various control positions, jet angles, and excitation pressures on flow control efficacy. Control position significantly impacts the flow field structure within the intake, with a lower surface jet configuration outperforming an upper surface scheme. Optimal performance is achieved with the upper and lower surface jet angles set at 20° and 25°, respectively, under an input pressu

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Guo, Shenggang, Yan Lei, Xiaofeng Wang, et al. "Experimental Research of High-Pressure Methane Pulse Jet and Premixed Ignition Combustion Performance of a Direct Injection Injector." Processes 9, no. 11 (2021): 1977. http://dx.doi.org/10.3390/pr9111977.

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Natural gas (NG) direct injection (DI) technology benefits the engine with high efficiency and clean emissions, and the high-pressure gas fuel injection process causes crucial effects on the combustion. This study presents an optical experimental investigation on the high-pressure methane single-hole direct injection and premixed ignition combustion based on a visualization cuboid constant volume bomb (CVB) test rig. The experimental results show that the methane jet process is divided into two stages. The methane gas jet travels at a faster speed during the unstable stage I than that during t

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Li, Zhen, and Wen Ting Di. "Fluid Factors Research in High Pressure Abrasive Water Jet." Applied Mechanics and Materials 496-500 (January 2014): 986–89. http://dx.doi.org/10.4028/www.scientific.net/amm.496-500.986.

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Basisning on two-phase flow theory and using the FLUENT fluid analysis software to do numerical simulation in High pressure abrasive water jet. Changing the viscositythe flow and the density to observe the Influence in the field of force and velocity distribution. The results show that: density increases can improve the force and velocity significantly; but viscosity increase has a opposite effect, since the flow resistance increasing, making the outlet velocity fast decay. On the other hand, the flow of the working medium can also have a greater impact on the inlet velocity and jet results. A

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He, Meng, Liu Zhang, Chang Li, and Lei Zhao. "Flow Characteristics and Parameter Influence of the Under-Expansion Jet on Circulation Control Airfoil." Energies 16, no. 9 (2023): 3818. http://dx.doi.org/10.3390/en16093818.

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The enhancement in the jet pressure ratio and jet velocity contributes to expanding the control efficiency and control boundary of circulation control airfoil under high subsonic incoming flow. However, because of an excessive jet pressure ratio, the jet separates prematurely on the Coanda surface, resulting in control failure. In a bid to improve the adhesion capability of the jet under a high pressure ratio, a circulation control airfoil with a converging nozzle and back-facing step structure at the trailing edge was numerically simulated based on the Reynolds averaged Navier−Stokes equation

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Gong, Xue Min, Jia Yong Zhang, and Li Wen Guo. "Numerical Simulation of Outburst Prevention Effect of High-Pressure Mini-Jet Fracturing Coal." Applied Mechanics and Materials 182-183 (June 2012): 1338–42. http://dx.doi.org/10.4028/www.scientific.net/amm.182-183.1338.

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Through ANSYS/LS-DYNA simulates mini-jet fracturing coal effect, this paper verifies that high-pressure mini-jet forms ahead hole on working face coal, which increases coal exposing area and relieves pressure inside the coal bed to creative conditions for gas relieving and flowing. Additionally underground stress, the coal around hole shifts to the hole space and enlarges the hole relieving pressure and gas exhausting scope further, which removes the coal outburst potential within the control scope and provides theoretical basis for studing the equipment of high-pressure mini-jet cutting hole

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Gates, E. M., and R. W. Toogood. "A Model for Jet Piercing of Oil Sands." Journal of Energy Resources Technology 107, no. 4 (1985): 516–22. http://dx.doi.org/10.1115/1.3231228.

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The impact of a stationary confined high pressure water jet on a solid surface has been investigated. Flow visualization by high-speed photography and measurements of average surface pressures show the action of the jet is to exert a series of discrete impulses rather than a steady force. It appeared more appropriate then to analyze the pressure data statistically to obtain the probability of occurrence of pressures above a critical value required for failure of the material. These probability values were then incorporated into a cutting model to predict jet piercing rates and expected maximum

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Kurzydłowski, Dominik, and Patryk Zaleski-Ejgierd. "High-pressure stabilization of argon fluorides." Physical Chemistry Chemical Physics 18, no. 4 (2016): 2309–13. http://dx.doi.org/10.1039/c5cp05725f.

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Argon forms isolated molecules stable solely in low temperature matrices or supersonic jet streams. We present hybrid DFT theoretical investigations into a new high-pressure reaction pathway, which enables synthesis of argon difluoride (ArF<sub>2</sub>) in bulk and at room temperature.

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Wang, Gaowei, Yongfei Yang, Chuan Wang, Weidong Shi, Wei Li, and Bo Pan. "Effect of Nozzle Outlet Shape on Cavitation Behavior of Submerged High-Pressure Jet." Machines 10, no. 1 (2021): 4. http://dx.doi.org/10.3390/machines10010004.

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A submerged high-pressure water jet is usually accompanied by severe cavitation phenomenon. An organ pipe nozzle can greatly improve the cavitation performance of the jet, making use of the self-excited oscillation of the flow. In order to study the effect of organ pipe nozzles of different nozzle outlet shapes on cavitation behavior of submerged high-pressure jet, in this paper we build a high-pressure cavitation jet experiment system and carried out a high-speed photography experiment to study cavitation cloud characteristics of a high-pressure submerged jet. Two organ pipe nozzles with and

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Yu, Wei, Baoshou Wang, and Chun Zhang. "A Numerical Simulation of the Underwater Supersonic Gas Jet Evolution and Its Induced Noise." Applied Sciences 13, no. 14 (2023): 8336. http://dx.doi.org/10.3390/app13148336.

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To explore the complex flow field and noise characteristics of underwater high-speed gas jets, the mixture multiphase model, large eddy simulation method, and Ffowcs Williams–Hawking (FW–H) acoustic model were used for simulations, and the numerical methods were validated by the gas jet noise experimental results. The results revealed that during the initial stages, the jet collided with the water surface and created low-pressure high-temperature gas bubbles, accompanied by much high-frequency noise. When the jet reached its maximum length, its impact weakened, the bubble broke, the jet transf

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Pogrebnyak, V. G., I. I. Chudyk, A. V. Pogrebnyak, and I. V. Perkun. "High-efficiency casing perforation oil and gas wells." SOCAR Proceedings, SI2 (December 30, 2021): 112–20. http://dx.doi.org/10.5510/ogp2021si200578.

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The energetic capabilities of a high-speed jet of an aqueous solution of polyethylene oxide (PEO) with varying concentration and different outflow pressures from a jetforming nozzle were investigated using the length of the forming channel in the model of the casing of an oil and gas well, cement sheath and rock layer, as well as impact of the jet force on a metal plate fixed on a physical pendulum. The experimental data made it possible to obtain a calculated dependence in a dimensionless form to determine the quality (initial sections) of jets of aqueous solutions with different concentratio

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