Results 111 to 120 of about 3,940 (221)

Numerical Analysis of the Turbulent Flow Structure Induced by the Cavitation Shedding using LES

open access: yesJournal of Applied Fluid Mechanics, 2017
To analyze the interaction between the turbulent flow structure with the cavitation shedding dynamics, a three-dimensional unsteady cavitating turbulent flow around the three-dimension NACA009 hydrofoil is investigated in this study.
H. Kanfoudi   +4 more
doaj  

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

open access: yesProgress 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

Feasibility study on the micro-forming of novel metal foil arrays based on submerged cavitating water-jet impingement

open access: yesAdvances in Mechanical Engineering
With the increasing demand for metal foil parts with micro-array structures in micro-electromechanical systems (MEMS), it is urgent to explore a novel array micro-forming technology with high efficiency, low cost, and high flexibility.
Lian Zhou   +5 more
doaj   +1 more source

On the limiting parameters of artificial cavitation applied to reduce drag [PDF]

open access: yes, 2003
Artificial cavitation, or ventilation, is produced by releasing gas into liquid flow. One objective of creating such a multiphase flow is to reduce frictional and sometimes wave resistance of a marine vehicle completely or partially immersed in the ...
Matveev, Konstantin
core  

Investigation of three-dimensional effects on a cavitating Venturi flow

open access: yes, 2013
International audienceA numerical investigation of the behaviour of a cavitation pocket developing along a Venturi geometry has been performed using a compressible one-fluid hybrid RANS/LES solver.
Decaix, Jean, Goncalvès da Silva, Eric
core   +4 more sources

Acquisition and correlation of cryogenic nitrogen mass flow data through a multiple orifice Joule-Thomson device [PDF]

open access: yes
Liquid nitrogen mass flow rate, pressure drop, and temperature drop data were obtained for a series of multiple orifice Joule-Thomson devices, known as Visco Jets, over a wide range of flow resistance.
Nyland, Ted W.   +2 more
core   +1 more source

Limitations on 2D Super-cavitating Hydrofoil Performance [PDF]

open access: yes, 2007
Classical super-cavitating hydrofoil performance predictions have been based on linearised potential theory for zero cavitation number. More rationalised predictions of super-cavitating hydrofoil performance have been evaluated using a non-linear ...
Brandner, PA, Pearce, BW
core   +1 more source

Effect of Cavitation in Cylindrical and Two-dimensional Nozzles on Liquid Jet Formation [PDF]

open access: yes, 2011
Cavitation in various nozzles of different geometries and dimensions, i.e., two-dimensional (2D) and cylindrical nozzles, and liquid jets discharged from the nozzles are visualized using a digital camera, and the index for estimating cavitation in a ...
Jalaluddin, J. (Jalaluddin)   +1 more
core  

Rebounds of deformed cavitation bubbles

open access: yes, 2018
Presented here are experiments clarifying how the deformation of cavitation bubbles affects their rebound. Rebound bubbles carry the remaining energy of a bubble following its initial collapse, which dissipates energy mainly through shock waves, jets ...
Farhat, Mohamed   +2 more
core   +1 more source

Cavitation Dynamics and Vorticity Analysis of a Clark-Y Hydrofoil and a Venturi Geometry Based on the DCM

open access: yesInternational Journal of Rotating Machinery
Literature research has shown that the high turbulent viscosity of original Reynolds-averaged Navier–Stokes (RANS) models in the wake reduces the cavitation instability, resulting in an unreasonable performance prediction of the cavity generation ...
Jing Li, Chunbao Liu
doaj   +1 more source

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