Results 21 to 30 of about 38,900 (302)

Visualized experimental study on the process of high-pressure gas jet impacting on liquid-water column [PDF]

AIP Advances
To 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, Shenshen Cheng, Xinggan Lu, Kun Jiang   +3 more
doaj   +1 more source

Modulation of annular fluid enhanced self-excited pulsed water jet and its coal breaking characteristics

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, Liqun LONG, Weiqin ZUO, Huaizhen LI, Hongkai HAN, Jin SHI, Yunqiang LI, Jian MIAO, Haojie JIA   +8 more
doaj   +1 more source

A study of mixing and intermittency in a coaxial turbulent jet [PDF]

, 2010
A large eddy simulation study of mixing and intermittency of a coaxial turbulent jet discharging into an unconfined domain has been conducted. The work aims to gain insight into the mixing and intermittency of turbulent coaxial jet configurations. The
Savill, A.M., Jenkins, K.W., Ranga Dinesh, K.K.J., Kirkpatrick, M. P., Savill, Mark A., Jenkins, Karl W., Ranga Dinesh, K. K. J., Kirkpatrick, M.P.   +7 more
core   +1 more source

Transient Calculation Studies of Liquid–Solid Collision in Jet Descaling

Energies, 2022
Sichuan is gradually being transformed and is utilizing groundwater and thermal resources. However, this investigation found that the high mineralization rate of geothermal resources in the Sichuan Basin is common and efficient, and environmentally ...
Shu Hu, Zhaohui Teng, Shan Huang, Na Li, Qulan Zhou   +4 more
doaj   +1 more source

Study on the optimal parameter matching model of rotary cutting coal-rock for abrasive water jet

Meitan kexue jishu
As 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, Pengwei XIAO, Huidong ZHANG, Changjiang CHEN, Yong LIU   +4 more
doaj   +1 more source

Study on the Erosion Morphology of Cohesive Soil under the Vertical Impact of a High-Pressure Moving Water Jet

Applied Sciences, 2022
In the in situ leaching process of ionic rare earth ore, high-pressure moving water jet technology has been applied to improve floor leakage problems.
Jian Liu, Xiongdong Lan, Guanshi Wang, Sihai Luo, Zhipeng Yang   +4 more
doaj   +1 more source

Preliminary study on occurrence of composite material delamination processed by abrasive water jet cutting

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, Bâlc Nicolae, Popan Alina Ioana   +2 more
doaj   +1 more source

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, Zhaolong Ge, Feng Yang, Binwei Xia, Jiren Tang   +4 more
doaj   +1 more source

A Numerical Simulation of the Underwater Supersonic Gas Jet Evolution and Its Induced Noise

Applied Sciences, 2023
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 ...
Wei Yu, Baoshou Wang, Chun Zhang
doaj   +1 more source

Influence of Processing Parameters on Coating Removal for High Pressure Water Jet Technology Based on Wall-Climbing Robot

Applied Sciences, 2020
The shipbuilding industry is very important for many countries. As an essential process in the shipbuilding industry, surface preparation (or coating removal) is gaining more and more attention.
Feifei Zhang, Xuerong Sun, Zhanpeng Li, Imran Mohsin, Yanan Wei, Kai He   +5 more
doaj   +1 more source