Results 81 to 90 of about 362,323 (168)

Dynamic-mesh-based Simulation and Cavitation Erosion Prediction in Hydrodynamic Journal Bearings [PDF]

Journal of Applied Fluid Mechanics
This study investigates the cavitating lubrication flow and the associated erosion risk within the oil film of small-clearance journal bearings subjected to prescribed eccentric motion.
F. Wang, W. Han, L. Li, M. Li, B. Zhu
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

Visualization of submerged cavitating jet. Part two : influences of hydrodynamic conditions, nozzle geometry and visualization system arrangement [PDF]

, 2007
In visualization results of highly-submerged cavitating water jet obtained by a digital camera, the influence of parameters such as: injection pressure, nozzle diameter and geometry, nozzle mounting (for convergent / divergent flow), cavitation number ...
Nedeljkovic, Milos, Jacobs, Peter, Cleary, Matthew, Hutli, Ezddin, McIntyre, Tim, Ilic, Vojislav   +5 more
core   +1 more source

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

Journal 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, G. Bellakhall, M. Ennouri, A. Bel Hadj Taher, R. Zgoll   +4 more
doaj  

Scale resolving simulations of the non-cavitating and cavitating flows in an axial water jet pump [Elektronisk resurs]

, 2020
In this paper, the non-cavitating and cavitating flows in the AxWJ-2 axial water jet pump of Johns Hopkins University are simulated using a Large Eddy Simulation(LES) approach.
Eslamdoost, Arash,, Svennberg, Urban,, Arabnejad Khanouki, Mohammad Hossein,, Bensow, Rickard,   +3 more
core  

Geometric reduction of jet cavitation erosion and quantitative measurement of solid-surface damage

Journal of Advanced Mechanical Design, Systems, and Manufacturing
Impingement of a cavitating jet on a solid surface causes erosion, resulting in problems in fluid machinery. To avoid degradation and breakdown of the machinery, cavitation erosion must be reduced, and the erosion damage should be estimated.
Toshiharu KAZAMA, Hisanori HAYASHI, Yuma SASAKI, Yukihito NARITA, Yasuhiro OSAFUNE   +4 more
doaj   +1 more source

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

Advances 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, Wei Meng, Fuzhu Li, Honglei Ma, Yun Wang, Jingyi Wu   +5 more
doaj   +1 more source

Experimental characterization and modelling of a cavitating centrifugal pump operating in fast start-up conditions [PDF]

, 2010
The start-up of rocket engine turbopumps is generally performed only in a few seconds. It implies that these pumps reach their nominal operating conditions after only a few rotations.
Bois, Gérard, Caignaert, Guy, Duplaa, Sébastien, Coutier-Delgosha, Olivier, Dazin, Antoine   +4 more
core  

Cavitating jet

, 2022
Předložená diplomová práce se zabývá kavitujícím paprskem a je rozdělena do tří hlavních částí. Teoretická část popisuje základní principy kavitace a její negativní účinky na povrch obtékaných těles (např. hydraulických strojů). Rozsáhlá kapitola je také
Kotoulová, Helena
core  

Large-eddy simulation of cavitating nozzle and jet flows

, 2015
We present implicit large-eddy simulations (LES) to study the primary breakup of cavitating liquid jets. The considered configuration, which consists of a rectangular nozzle geometry, adopts the setup of a reference experiment for validation.
Schmidt, S.J. (author), Adams, N.A. (author), Hickel, S. (author), Mihatsch, M.S. (author), Örley, F. (author), Trummler, T. (author)   +5 more
core   +1 more source