Results 11 to 20 of about 3,835 (233)
Research on Improving the Working Efficiency of Hydraulic Jet Submarine Cable Laying Machine
Journal of Marine Science and Engineering, 2021 The anchoring and hooking of ships, bedrock friction and biological corrosion threaten the safety and stability of submarine cables. A hydraulic jet submarine cable laying machine manages to bury the submarine cables deep into the seabed, and effectively
Jiawang Chen, Yongqiang Ge, Chen Cao
exaly +3 more sources
Development and field application of a pulse-jet hydraulic impactor
Natural Gas Industry B, 2018 The current studies on hydraulic pulse jet mainly focus on the pulse jet flow field and its effect, but have never extended to the collaboration of hydraulic impact and pulse jet for rock breaking.
Shihui Sun
exaly +3 more sources
Numerical Investigation of Erosion Wear in the Hydraulic Amplifier of the Deflector Jet Servo Valve
Applied Sciences (Switzerland), 2020 Although possessing a remarkable anti-contamination capacity, the deflector jet valve is still confronted with erosion wear brought by solid particles in hydraulic oil.
Yukai Ren
exaly +3 more sources
Evolution of jets generated by noncircular nozzles with varying aspect ratios [PDF]
Scientific ReportsTwo types of non-circular nozzles (NCNs) with diamond and elliptical shapes are designed, and the jet breakup characteristics of NCNs with different aspect ratios are investigated via high-speed photography.
Zhao Haiyan +4 more
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Experimental investigation on the characteristics of hydraulic jump in expanding channels with a water jet injection system [PDF]
Journal of Hydraulic Structures, 2022 The high flow velocity downstream of weirs and gates can cause the destruction of erosive beds in rivers or even non-erosive channels. To reduce the flow's kinetic energy, structures are needed to consume this energy.
Shokoofeh Sharoonizadeh +4 more
doaj +1 more source
Cleaner Engineering and Technology, 2023 In this study, roughened absorber plate and jet nozzle are simultaneously employed to enhance the efficiency of a solar based air heater. The impact of jet nozzle hole shape is comprehensively investigated for the mentioned system which have not been ...
Sameer Ali Alsibiani
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Capillary Hydraulic Jump in a Viscous Jet [PDF]
Nelineinaya Dinamika, 2019 Summary: Stationary waves in a cylindrical jet of a viscous fluid are considered. It is shown that when the capillary pressure gradient of the term with the third derivative of the jet radius in the axial coordinate is taken into account in the expression, the previously described self-similar solutions of hydrodynamic equations arise. Solutions of the
Safronov, Andreĭ A. +3 more
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Drilling and Rock Mechanics Symposium, 1969 Abstract As a result of a detailed survey of over 25 novel drilling techniques, a laboratory study of hydraulic jet drilling was made. In initial tests, a cannon was used to fire 1.45-gal water pulses at rocks at pressures up to 25,000 psi.
William Maurer, Joe Heilhecker
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Improvement and Application of Key Tools for Hydraulic Jet Fracturing [PDF]
E3S Web of Conferences, 2021 Aiming at the problems of poor reliability, low construction efficiency, and short service life of fracturing string in the application of hydraulic jet technology in Daqing Oilfield, targeted research has been carried out on key tools such as rubber ...
Zhang Yibo
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PLoS ONE, 2018 Oil shale is an unconventional energy source, and it is also a potential petroleum substitute. Nowadays, the energy shortage is becoming more and more prominent, oil shale has attracted the attention of energy researchers all over the world.
Jiwei Wen, Chen Chen, Urso Campos
doaj +1 more source