Results 31 to 40 of about 3,940 (221)
Structure optimization of submerged water jet cavitating nozzle with a hybrid algorithm
Engineering Applications of Computational Fluid Mechanics, 2019 It is critical to obtain a suitable geometry for a cavitating nozzle of submerged water jet, since a suitable geometry determines its cavitation intensity and cavitation distribution.
Yanzhen Chen, Yihuai Hu, Shenglong Zhang
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Enhancement of an aggressive intensity of a cavitating jet by water flow holes near nozzle outlet
Nihon Kikai Gakkai ronbunshu, 2019 The cavitation cloud generated by submerged high-speed water jet has periodicity. The periodicity is provided by alternately repeating the bubbles generation and shedding process and cavitation nucleus filling process.
Hirokazu KAMISAKA, Hitoshi SOYAMA
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Journal 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
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A Note on the Unsteady Cavity Flow in a Tunnel [PDF]
, 1974 The unsteady internal cavitating flow such as the one observed in a pump or a turbine is studied for a simple two-dimensional model of a base-cavitating wedge in an infinite tunnel and it is shown how the cavitation compliance can be calculated using the
Acosta, A. J., Kim, J. H.
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Passive control of cavitating flow around an axisymmetric projectile by using a trip bar
Theoretical and Applied Mechanics Letters, 2017 Quasi-periodical evolutions such as shedding and collapsing of unsteady cloud cavitating flow, induce strong pressure fluctuations, what may deteriorate maneuvering stability and corrode surfaces of underwater vehicles.
Jian Huang +4 more
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Appearance of high submerged cavitating jet: The cavitation phenomenon and sono luminescence [PDF]
Thermal Science, 2013 In order to study jet structure and behaviour of cloud cavitation within time and space, visualization of highly submerged cavitating water jet has been done using Stanford Optics 4 Quick 05 equipment, through endoscopes and other lenses with Drello3244 and Strobex Flash Chadwick as flashlight stroboscope.
Ezddin Hutli +4 more
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Numerical investigations on bubble-induced jetting and shock wave focusing: application on a needle-free injection [PDF]
, 2019 The formation of a liquid jet into air induced by the growth of a laser-generated bubble inside a needle-free device is numerically investigated by employing the compressible Navier–Stokes equations.
Gavaises, E. +2 more
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Bulletin of JSME, 1979 Based on the similarity law of jet pump, a new cavitation parameter σ is proposed which has the similar meaning to Thoma's cavitation parameter in turbo pumps. The σ values are determined theoretically and presented as the function of specific speed nsj so that we may predict cavitation directly by using it in the designing. Experiments are carried out
Hiroshi NARUI, Shoichiro HARADA
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Water Science and Engineering, 2020 Based on a self-developed hydrodynamic cavitation device with different geometric parameters for circular multi-orifice plates, turbulence characteristics of cavitating flow behind multi-orifice plates, including the effects of orifice number and orifice
Zhi-ping Guo, Xi-huan Sun, Zhi-yong Dong
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Vortex formation with a snapping shrimp claw. [PDF]
PLoS ONE, 2013 Snapping shrimp use one oversized claw to generate a cavitating high speed water jet for hunting, defence and communication. This work is an experimental investigation about the jet generation.
David Hess +4 more
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