Scaling of Cavitation Bubble Cloud Dynamics on Propellers

2014 ◽  
pp. 345-372 ◽  
Author(s):  
Georges L. Chahine ◽  
Chao-Tsung Hsiao ◽  
Reni Raju
Keyword(s):  
Cavitation Bubble ◽  
Bubble Cloud ◽  
Cloud Dynamics

scholarly journals Cavitation Bubble Cloud Break-Off Mechanisms at Micro-Channels

Fluids ◽  
2021 ◽  
Vol 6 (6) ◽  
pp. 215
Author(s):  
Paul McGinn ◽  
Daniel Pearce ◽  
Yannis Hardalupas ◽  
Alex Taylor ◽  
Konstantina Vogiatzaki
Keyword(s):  
Cavitation Bubble ◽  
Cavitation Inception ◽  
Wave Dynamics ◽  
Bubble Cloud ◽  
Cloud Dynamics ◽  
Micro Channels ◽  
Physical Insight ◽  
Cloud Process ◽  
Good Agreement

This paper provides new physical insight into the coupling between flow dynamics and cavitation bubble cloud behaviour at conditions relevant to both cavitation inception and the more complex phenomenon of flow “choking” using a multiphase compressible framework. Understanding the cavitation bubble cloud process and the parameters that determine its break-off frequency is important for control of phenomena such as structure vibration and erosion. Initially, the role of the pressure waves in the flow development is investigated. We highlight the differences between “physical” and “artificial” numerical waves by comparing cases with different boundary and differencing schemes. We analyse in detail the prediction of the coupling of flow and cavitation dynamics in a micro-channel 20 m high containing Diesel at pressure differences 7 MPa and 8.5 MPa, corresponding to cavitation inception and "choking" conditions respectively. The results have a very good agreement with experimental data and demonstrate that pressure wave dynamics, rather than the “re-entrant jet dynamics” suggested by previous studies, determine the characteristics of the bubble cloud dynamics under “choking” conditions.

Pressure measurement and high-speed observation on the cavitation bubble cloud due to the backscattering of HIFU from a laser-induced bubble

2018 ◽  
Vol 50 (6) ◽  
pp. 065512 ◽  
Author(s):  
Toshiyuki Ogasawara ◽  
Taisei Horiba ◽  
Taisuke Sano ◽  
Hiroyuki Takahira
Keyword(s):  
Pressure Measurement ◽  
Cavitation Bubble ◽  
High Speed ◽  
Bubble Cloud

Shock‐controlled bubble cloud dynamics and light emission.

2011 ◽  
Vol 129 (4) ◽  
pp. 2619-2619 ◽  
Author(s):  
R. Glynn Holt ◽  
Phillip A. Anderson ◽  
Ashwinkumar Sampathkumar ◽  
Jonathan R. Sukovich ◽  
D. Felipe Gaitan
Keyword(s):  
Light Emission ◽  
Bubble Cloud ◽  
Cloud Dynamics

Measurement of pressure produced at a solid surface by an acoustically driven cavitation bubble cloud

2006 ◽  
Vol 119 (5) ◽  
pp. 3408-3408
Author(s):  
Teiichiro Ikeda ◽  
Shin Yoshizawa ◽  
Yoichiro Matsumoto ◽  
Michael R. Bailey ◽  
Lawrence A. Crum ◽  
...  
Keyword(s):  
Solid Surface ◽  
Cavitation Bubble ◽  
Bubble Cloud

scholarly journals Modeling and numerical simulation of the bubble cloud dynamics in an ultrasound field for burst wave lithotripsy

2018 ◽  
Vol 144 (3) ◽  
pp. 1780-1780
Author(s):  
Kazuki Maeda ◽  
Tim Colonius ◽  
Adam D. Maxwell ◽  
Wayne Kreider ◽  
Michael R. Bailey
Keyword(s):  
Numerical Simulation ◽  
Bubble Cloud ◽  
Ultrasound Field ◽  
Cloud Dynamics

scholarly journals Effects off-number on the histotripsy intrinsic threshold and cavitation bubble cloud behavior

2017 ◽  
Vol 62 (4) ◽  
pp. 1269-1290 ◽  
Author(s):  
Eli Vlaisavljevich ◽  
Tyler Gerhardson ◽  
Tim Hall ◽  
Zhen Xu
Keyword(s):  
Cavitation Bubble ◽  
Bubble Cloud
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