Results 51 to 60 of about 2,904 (160)

Comparative on Flow Field Characteristics of Cavitation Jet Nozzles with Different Structures

Shiyou jixie
The type and structure of a nozzle are the key factors affecting the performance of cavitation jet.In the paper,first,the CFD numerical simulation method was used to explore the flow field characteristics of organ-pipe self-oscillation cavitation jet ...
Guo Chenrui, Li Jingbin, Li Huan, Ma Rutao, Wang Hao, Zhong Hou, Li Rui   +6 more
doaj  

Cavitation Observations in a Jet-Flow Gate-Valve

TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B, 1984
As a step for clarification of the mechanism of cavitation erosion as well as noises at a jet-flow gate-valve, the cavitation-aspects and the associated sound-pressures were simultaneously observed systematically by means of high-speed-photography and sensitive pressure-detection through a hydrophone, in a 1/10-scale model-valve for various openings ...
Risaburo OBA, Yukio ITO, Hideto MIYAKURA, Jiro HIGUCHI, Satoru NOZAKI, Yoshiro NAKAMURA, Kozo WADA   +6 more
openaire   +3 more sources

Investigation on The Flow Characteristics of Rotating Nozzle Cavitation Water Jet Flow Field [PDF]

Journal of Applied Fluid Mechanics
Rotating cavitation water jet technology is widely used in many industrial fields such as pipeline cleaning, unblocking, cutting, etc. To more accurately analyse the flow characteristics of rotating cavitating water jets, the specific impact of the ...
W. Wu, Y. Xu, Y. Yan, S. Li, J. Zhang, Z. Wang   +5 more
doaj   +1 more source

Numerical Simulation of Cavitating Water Jet by a Compressible Mixture Flow Method

Journal of Fluid Science and Technology, 2011
Concerned on the numerical simulation of high-speed water jet accompanied with intensive cavitation, a practical compressible mixture flow method is developed by coupling a simplified estimation of bubble cavitation and a flexible compressible flow ...
Guoyi PENG, Seiji SHIMIZU, Shigeo FUJIKAWA   +2 more
doaj   +1 more source

Effects of Inlet Edge Roundness on Cavitation in Injector Nozzles and Liquid Jet

International Journal of Automotive Engineering, 2018
Innovation of fuel injection technology are necessary for lower emission and higher thermal efficiency of diesel engines. The effects of the geometry of injector nozzles on cavitation flows in the nozzles and discharged liquid jets have to be understood ...
Makoto Mashida, Akira Sou
doaj   +1 more source

Interaction between cavitation bubbles and plastrons on superhydrophobic surfaces

Ultrasonics Sonochemistry
The interaction between cavitation bubbles and plastrons on superhydrophobic surfaces was investigated using a low-voltage discharge device and high-speed photography techniques.
Caisheng Huang, Xiaolong He, Jianmin Zhang   +2 more
doaj   +1 more source

Numerical and Experimental Studies of Cavitation Behavior in Water-Jet Cavitation Peening Processing

Shock and Vibration, 2013
Water-jet cavitation peening (WCP) is a new technology for the surface modification of metallic materials. The cavitation behavior in this process involves complex and changeable physics phenomena, such as high speed, high pressure, multiple phases ...
H. Zhang, B. Han, X.G. Yu, D.Y. Ju
doaj   +1 more source

Instantaneous Behavior of Cavitation Clouds at Impingement of Cavitating Water-Jet

Progress in Multiphase Flow Research, 2007
It is known that water-jet with cavitation clouds shows unsteady behavior and causes high impact. It is useful for not only the water jet technology but also various engineering fields. The unsteadiness of cavitation clouds is one of the most interesting problems for the use of the cavitating water-jet.
Yasuhiro SAITO, Keiichi SATO
openaire   +2 more sources

Numerical Simulation on Structural Optimization of Helmholtz Cavitation Jet Nozzle

Shiyou jixie
The structural size of Helmholtz cavitation jet nozzle is large and not suitable for blockage removal by cavitation jet flushing. Moreover, there is a lack of evaluation on the jet pulse property in related studies.
Li Jingbin, Guo Chenrui, Li Huan, Wang Hao, Yang Dong   +4 more
doaj  

Development and Test of Cavitation Jet Hydro-Oscillator

Shiyou jixie
Scaling in wellbore may lead to sticking and thus reduced oil production. In order to solve this problem,based on the principle of generation of shearing cavitation by drowned jet,a cavitation jet hydro-oscillator was designed,which was used together ...
Zheng Wenlong, Zhang Fei, Wang Xiaopeng, Zhang Yuanfeng, Cheng Zhanquan, Zhou Yuping, Han Yuanyuan   +6 more
doaj