Results 61 to 70 of about 157,314 (205)

Study on the formation and characteristics of unstable sheet cavitation on hydrofoils

Ultrasonics Sonochemistry
Hydrofoils, as fundamental components of hydraulic machinery, directly influence the performance of such machinery. This study conducted an analysis of the cavitation characteristics of hydrofoils at a + 4° angle of attack under various cavitation ...
Lin Wang, Di Chen, Fangping Tang, Haiyu Liu   +3 more
doaj   +1 more source

Surge Instability on a Cavitating Propeller [PDF]

, 2000
This study details experiments investigating a previously unrecognized surge instability on a cavitating propeller in a water tunnel. The surge instability is explored through visual observation of the cavitation on the propeller blades and in the tip ...
Brennen, C. E., Duttweiler, M. E.
core   +1 more source

Diagnostic Ultrasound Induced Inertial Cavitation To Non-Invasively Restore Coronary And Microvascular Flow In Acute Myocardial Infarction [PDF]

, 2013
Ultrasound induced cavitation has been explored as a method of dissolving intravascular and microvascular thrombi in acute myocardial infarction. The purpose of this study was to determine the type of cavitation required for success, and whether longer ...
Everbach, E. Carr, Feng, X., Gao, S., Liu, J., Lof, J., Porter, T. R., Powers, J., Radio, S., Shi, W., Unger, E., Vignon, F., Wu, J.   +11 more
core   +3 more sources

Research on cavitation phenomena in pilot stage of jet pipe servo-valve with a rectangular nozzle based on large-eddy simulations

AIP Advances, 2019
The flow field in the pilot stage of a jet pipe servo-valve significantly affects the performance of the valve. Cavitation with pressure oscillations occur in the pilot stage and lead to the appearance of high-frequency noise and vibration.
Lin Wu, Kui-sheng Chen, Yuan Guo
doaj   +1 more source

Cavitation scaling experiments with headforms : bubble dynamics [PDF]

, 1992
Utilizing some novel instrumentation which allowed detection and location of individual cavitation bubbles in flows around headforms. Ceccio and Brennen (1991 and 1989) recently examined the interaction between individual bubbles and the structure of the
Brennen, Christopher E., Ceccio, Steven L., Kuhn de Chizelle, Yan, Shen, Young   +3 more
core  

A feature extraction method for hydrofoil attached cavitation based on deep learning image semantic segmentation algorithm

Scientific Reports
Cavitation is a technical challenge for high-speed underwater vehicles, such as nuclear submarines and underwater robots, et al. The cavitation phenomena of hydrofoils are typically studied through water tunnel experiments or numerical simulations, which
Yingyuan Liu, Yizhi Wang, Kang An
doaj   +1 more source

Effect of Stable and Transient Cavitation on Ultrasonic Degassing of Al Alloy

Metals
Cavitation is a critical phenomenon for improving melt quality in casting processes by reducing hydrogen porosity, and it can be classified into two major types based on bubble dynamics, stable and transient cavitation.
Youngki Lee, Jongmin Kim, Taekyu Ha, Byungil Kang, Youngjig Kim   +4 more
doaj   +1 more source

Bubbly cloud dynamics and cavitation [PDF]

, 2007
In many cavitating liquid flows, when the number and concentration of the bubbles exceeds some critical level, the flow becomes unsteady and large clouds of cavitating bubbles are periodically formed and then collapse when convected into regions of ...
Brennen, Christopher E.
core  

Statistics of Noise Generated by Travelling Bubble Cavitation [PDF]

, 1991
This paper presents the details of the collapse process for single bubbles generated in travelling bubble cavitation around two axisymmetric headforms.
Brennen, Christopher E., Kumar, Sanjay
core  

Cavitating Otosclerosis [PDF]

Otology & Neurotology, 2008
Andres O, Makarem, Fred H, Linthicum
openaire   +2 more sources