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Preparation of graphene by jet cavitation
Nanotechnology, 2011Despite its bright prospects, graphene faces challenges including issues concerning mass production. Here we present a totally green approach whereby common crystal graphite can be exfoliated into graphene sheets in aqueous solution by jet cavitation. This is possible mainly because the tensile stress caused by graphite-solution interfacial reflection ...
Zhigang, Shen +4 more
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Experiments in Fluids, 2013
A cavitation cloud forms when a high-pressure water jet is submerged in a tank of quiescent water. The water jet is formed as high-pressure nitrogen forces a fixed-volume column of water through a nozzle. The diameter and exit velocity of the water jet affect the behavior and geometry of the resulting cavitation.
Michael M. Wright +3 more
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A cavitation cloud forms when a high-pressure water jet is submerged in a tank of quiescent water. The water jet is formed as high-pressure nitrogen forces a fixed-volume column of water through a nozzle. The diameter and exit velocity of the water jet affect the behavior and geometry of the resulting cavitation.
Michael M. Wright +3 more
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Journal of Basic Engineering, 1970
Mixing-throat cavitation in a liquid jet pump results from high jet velocities, low suction (NPSH) pressure, or low discharge pressure. Incipient cavitation at the jet boundary has no effect on jet pump efficiency, but under severe conditions it spreads to the walls.
R. G. Cunningham, A. G. Hansen, T. Y. Na
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Mixing-throat cavitation in a liquid jet pump results from high jet velocities, low suction (NPSH) pressure, or low discharge pressure. Incipient cavitation at the jet boundary has no effect on jet pump efficiency, but under severe conditions it spreads to the walls.
R. G. Cunningham, A. G. Hansen, T. Y. Na
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Criteria for jet cavitation and cavitation jet drilling
International Journal of Rock Mechanics and Mining Sciences, 2014Abstract The research history of cavitation jets is reviewed, and a mechanism that explains cavitation, methods to measure when cavitation occurs and factors that affect cavitation are introduced. The rationality of the cavitation number, which is often used to predict cavitation, is discussed.
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An Experimental Investigation of Cavitating Jet Dynamic Power and Cavitation Intensity
Volume 7: Fluid Flow, Heat Transfer and Thermal Systems, Parts A and B, 2010The principal focus of this investigation were the effect of hydrodynamic and geometrical parameters on cavitating jet dynamic power and cavitation intensity under different flow conditions. Jet performance indicators were taken to be the erosion rate of the target surface and the size of the erosion area..
Hutli, Ezddin +2 more
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Mapping cavitation impact field in a submerged cavitating jet
Wear, 2018Abstract A full assessment of the cavitation erosion potential of a cavitating jet necessitates the determination of the cavitation impact field. However, a detailed description of the impact intensity and spatial distribution of the large numbers of cavitation impacts has not been fully established.
Peng, Kewen +3 more
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Cavitation about a jet in crossflow
Journal of Fluid Mechanics, 2015Cavitation occurrence about a jet in crossflow is investigated experimentally in a variable-pressure water tunnel using still and high-speed photography. The 0.012 m diameter jet is injected on the centreplane of a 0.6 m square test section at jet to freestream velocity ratios ranging from 0.2 to 1.6, corresponding to jet-velocity-based Reynolds ...
P. A. Brandner +2 more
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Cavitation in Submerged Water Jet at High Jet Pressure
Volume 2: Fora, 2015Recent industrial applications have unfolded a promising prospect for submerged water jet. Apart from widely acknowledged water jet properties, submerged water jet is characterized by the formation and complex evolution of cavitation bubbles. These bubbles not just alter the flow behavior of submerged water jet but also pose a profound effect upon ...
Can Kang +3 more
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Cavitation intensity and erosion pattern of a self-excited cavitating jet
Journal of Materials Processing Technology, 2020Abstract The self-excited water jet technology is widely used in submerged conditions, while its performance is restricted under high confining pressure. To improve its erosive capability, the cavitation intensity and the erosion pattern of a self-excited cavitating jet (SECJ) were investigated through mass loss and the microscopic images of the ...
Yan Pan, Fei Ma, Boshen Liu, Tengfei Cai
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