Results 1 to 10 of about 286 (119)

Flow Characteristics of Oblique Submerged Impinging Jet at Various Impinging Heights

open access: yesJournal of Marine Science and Engineering, 2022
To study the influence of impinging height H/D on the flow field characteristics of oblique submerged impinging jets, the numerical calculation of an oblique submerged impinging jet was carried out based on Wray–Agarwal (W–A) turbulence model.
Chuan Wang, Yong Zhu, Bo Hu
exaly   +3 more sources

Flow Structures of Submerged Gas Jet in Liquid Currents [PDF]

open access: yesE3S Web of Conferences, 2021
The flow structure of the submerged gas jet in liquid currents is important to engineering applications. In the present study, the development of a submerged gas jet subjected to liquid current is experimentally investigated to evaluate the effects of ...
Dong Ping   +5 more
doaj   +1 more source

Sensitivity analysis of main control factors for efficiency of submerged jet crushing coal containing gas

open access: yesMeikuang Anquan, 2021
In order to study the influencing factors of crushing efficiency of coal containing gas under submerged jet, the influence of different water jet impact conditions on coal crushing efficiency was studied, and the fluid solid coupling model of water jet ...
MA Xiongwei   +5 more
doaj   +1 more source

Research on Cavitation Characteristics of Two-Throat Nozzle Submerged Jet

open access: yesApplied Sciences, 2022
Ship fouling not only increases ship resistance and fuel consumption but is equally a type of biological invasion, which causes severe ecological damage. Submerged cavitation jet cleaning is an environmentally friendly, high-efficiency, and energy-saving
Jingming Dong   +4 more
doaj   +1 more source

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

open access: yesMeitan 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
doaj   +1 more source

Sediment Removal from Deep Reservoir Dams by Suction and Jet Flow [PDF]

open access: yesE3S Web of Conferences, 2022
One method of sediment removal from dam reservoirs is the use of submerged pumps and suction mixes of sediment and water. This method is usually considered for shallow rivers but we want to adopt this method for large dams.
Kianmehr Ali Ahmad   +1 more
doaj   +1 more source

Development of turbulence in subsonic submerged jets [PDF]

open access: yesPhysics Reports, 2004
Abstract The development of turbulence in subsonic submerged jets is reviewed. It is shown that the turbulence results from a strong amplification of the weak input noise that is always present in the jet nozzle exit section. At a certain distance from the nozzle the amplification becomes essentially nonlinear.
Landa, Polina S.   +1 more
openaire   +1 more source

Effect of Nozzle Outlet Shape on Cavitation Behavior of Submerged High-Pressure Jet

open access: yesMachines, 2021
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.
Gaowei Wang   +5 more
doaj   +1 more source

Bed load transport by submerged jets [PDF]

open access: yesProceedings of the National Academy of Sciences, 1979
Some similarities are presented between the bed load transport of noncohesive grains in long rivers and at a local, jet-induced scour. Experiments are described in which a submerged two-dimensional slot nozzle, inclined downward, eroded a deep sand bed.
J R, Francis, P S, McCreath
openaire   +2 more sources

Experimental investigation of two-phase flow evolution in a high-speed submerged water jet with air ventilation

open access: yesJournal of Fluid Science and Technology, 2023
In order to improve the submerged cutting performance of water abrasive suspension jet an experimental investigation on the two-phase flow structure of submerged water jet with semi-coaxial air ventilation is conducted by the method of high-speed camera ...
Guoyi PENG   +4 more
doaj   +1 more source

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