Results 41 to 50 of about 2,953 (219)

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.
SAITO, Yasuhiro, SATO, Keiichi
openaire   +2 more sources

Extraction for the Evolution Features of Cavitation Cloud Induced by the Self-excited Oscillating Jet [PDF]

open access: yesJournal of Applied Fluid Mechanics
The evolution process of the cavitation cloud in a fluidic oscillator is revealed via the high-speed photography experiment and the extraction of image gray value. The proper orthogonal decomposition (POD) method is employed to extract modal features and
Z. Hao, K. Li, R. Zhang, Y. Wang, G. Liu
doaj   +1 more source

Quantitative Evaluation of Submerged Cavitation Jet Performance Based on Image Processing Method

open access: yesJournal of Marine Science and Engineering, 2022
The submerged cavitation jet is suitable for ocean engineering activities such as ship fouling cleaning, organic wastewater treatment, offshore oil drilling, and natural gas hydrate extraction due to its superior hydraulic performance and erosion ...
Xiao Zhong   +4 more
doaj   +1 more source

Ligament Formation Induced by Cavitation in a Cylindrical Nozzle

open access: yesJournal of Fluid Science and Technology, 2008
Cavitation in a cylindrical nozzle and liquid jets discharged from the nozzle are simultaneously visualized using a high-speed camera to investigate the mechanism of liquid jet atomization induced by the fully-developed cavitation. Three mirrors are used
Akira SOU   +3 more
doaj   +1 more source

Experimental Study on the Unsteady Natural Cloud Cavities: Influence of Cavitation Number on Cavity Evolution and Pressure Pulsations

open access: yesJournal of Marine Science and Engineering, 2021
High-speed underwater vehicles are subjected to complex multiphase turbulent processes, such as the growth, development, shedding, and collapse of cavitation bubbles.
Tiezhi Sun   +3 more
doaj   +1 more source

Large Scale Simulation of Cloud Cavitation Collapse

open access: yesProcedia Computer Science, 2017
Procedia Computer Science ...
Ursula Rasthofer   +3 more
openaire   +2 more sources

Synchrotron X-ray imaging of the onset of ultrasonic horn cavitation

open access: yesUltrasonics Sonochemistry, 2023
High-power ultrasonic horns operating at low frequency are known to generate a cone-shaped cavitation bubble cloud beneath them. The exact physical processes resulting in the conical structure are still unclear mainly due to challenges associated with ...
Luc Biasiori-Poulanges   +4 more
doaj   +1 more source

Analysis of added mass in cavitating flow [PDF]

open access: yes, 2012
The paper addresses a theoretical study of the added mass effect in cavitating flow.The cavitation is considered to induce a strong time–space variation of the fluid density at the interface between an inviscid fluid and a three-degree-of-freedom rigid ...
BENAOUICHA, Mustapha   +1 more
core   +1 more source

Comparative Study of Different Turbulence Models for Cavitational Flows around NACA0012 Hydrofoil

open access: yesJournal of Marine Science and Engineering, 2021
The present work focuses on the comparison of the numerical simulation of sheet/cloud cavitation with the Reynolds Average Navier-Stokes and Large Eddy Simulation(RANS and LES) methods around NACA0012 hydrofoil in water flow.
Minsheng Zhao, Decheng Wan, Yangyang Gao
doaj   +1 more source

Tailored D‐π Conjugation Boosts Piezocatalytic CO2 Reduction in a Platinum(II)‐Acetylide Framework

open access: yesAdvanced Science, EarlyView.
The highly conjugated metalII‐acetylide framework demonstrates efficient ultrasound‐driven conversion of CO2 to CO. The piezoelectric field generated by ultrasound facilitates electron transfer from the tetraphenylene π‐column to the MII‐bis(acetylide) moiety, enabling CO2 activation. Compared to PdII‐ and NiII‐based analogues, the stronger d–π orbital
Mude Zhu   +6 more
wiley   +1 more source

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