Results 1 to 10 of about 1,168 (161)

Cavitation inception from bubble nuclei. [PDF]

open access: yesInterface Focus, 2015
Abstract The tensile strength of ordinary water such as tap water or seawater is typically well below 1 bar. It is governed by cavitation nuclei in the water, not by the tensile strength of the water itself, which is extremely high. Different models of the nuclei have been suggested over the years, and experimental investigations of ...
Mørch KA.
europepmc   +4 more sources

The importance of (un)dissolved gases on early-stage cavitation dynamics within an acoustic field [PDF]

open access: yesUltrasonics Sonochemistry
Gas content strongly affects cavitation dynamics; however, most studies rely solely on dissolved gas measurements, overlooking the influence of undissolved bubbles. This study investigates their role by introducing air bubbles (
Erçil Toyran   +3 more
doaj   +2 more sources

New insights on the cavitation development and the role of bubbles in Micro-Venturi channels [PDF]

open access: yesUltrasonics Sonochemistry
This study investigates hydrodynamic cavitation (HC) inception and development in micro-Venturi channels, focusing on the mechanism that drives spatially irregular cavitation events. The study reveals that cavitation regeneration is primarily governed by
Mohammadamin Maleki   +6 more
doaj   +2 more sources

Numerical Study on Tip Vortex Cavitation Inception on a Foil

open access: yesApplied Sciences (Switzerland), 2021
In this paper, the inception of tip vortex cavitation in weak water has been predicted using a numerical simulation, and a new scaling concept with variable exponent has also been suggested for cavitation inception index. The numerical simulations of the
Il Ryong Park, Hanshin Seol
exaly   +3 more sources

Acoustic Detection of Cavitation Inception

open access: yesJournal of Applied Fluid Mechanics, 2017
Cavitation phenomenon can cause deterioration of the hydraulic performance, damage by pitting, material erosion, structure vibration and noise in fluid machinery, turbo-machinery, ship propellers and in many other applications. Therefore, it is important
M. A. Hosien, S. M. Selim
doaj   +2 more sources

Numerical Method to Determine the Inception of Propeller Tip Vortex Cavitation Based on Bubble Dynamics

open access: yesApplied Sciences (Switzerland)
Due to the scale effect, tip vortex cavitation (TVC) is the earliest type of cavitation that occurs on real ship propellers. As a result, experts in the ship field have been paying close attention to the accurate prediction of propeller TVC inception for
Ruibiao Li, Jia Duan
exaly   +3 more sources

Investigations on cavitation flow and vorticity transport in a jet pump cavitation reactor with variable area ratios [PDF]

open access: yesUltrasonics Sonochemistry
Hydrodynamic cavitation (HC) has emerged as a promising technology for water disinfection. Interestingly, when subjected to specific cavitation pressures, jet pump cavitation reactors (JPCRs) exhibit effective water treatment capabilities.
Xiaoqi Jia   +8 more
doaj   +2 more sources

Experimental and Numerical Study of Cavitation Number Limitations for Hydrodynamic Cavitation Inception Prediction

open access: yesFluids, 2022
Hydrodynamic cavitation is the formation, growth and subsequent collapse of vapor bubbles in a moving liquid. It is extremely important to determine conditions of cavitation inception and when it starts damaging industrial equipment.
Maxim Omelyanyuk   +4 more
doaj   +1 more source

Correlation between Pressure Minima and Cavitation Inception Numbers: Fundamentals and Hydrofoil Flows

open access: yesJournal of Marine Science and Engineering, 2022
Cavitation inception predetermines a jump of noise radiated from marine vehicles. Usually marine propellers are the main sources of such a noise. In the situation of cavitation inception near the blade’s leading edge, its prediction remains a challenge ...
Eduard Amromin, Kirill Rozhdestvensky
doaj   +1 more source

Numerical Evaluation of Cavitation Erosion Intensity around NACA0015 Hydrofoil Based on Eulerian-Lagrangian Approach [PDF]

open access: yesمهندسی مکانیک شریف, 2022
In this study, to investigate the intensity of cavitation-induced erosion, the bubble behavior around the NACA0015 2D hydrofoil was simulated from the Eulerian-Lagrangian perspective.
A. katoozi, M. Mahdi
doaj   +1 more source

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