Results 41 to 50 of about 135,816 (271)

Study on the Motion Characteristics of Solid Particles in Fine Flow Channels by Ultrasonic Cavitation

Micromachines, 2022
Microjets caused by the cavitation effect in microchannels can affect the motion trajectory of solid particles in microchannels under ultrasonic conditions.
Mu Yuan, Chen Li, Jiangqin Ge, Qingduo Xu, Zhian Li   +4 more
doaj   +1 more source

Shock-induced collapse of a gas bubble in shockwave lithotripsy [PDF]

, 2008
The shock-induced collapse of a pre-existing nucleus near a solid surface in the focal region of a lithotripter is investigated. The entire flow field of the collapse of a single gas bubble subjected to a lithotripter pulse is simulated using a high ...
Colonius, Tim, Johnsen, Eric
core   +2 more sources

Effects of thermal conduction in sonoluminescence [PDF]

, 1997
We show by numerical hydrodynamic calculations that there are two important effects of thermal conduction in sonoluminescence: (i) the bubble remains close to being isothermal during the expansion phase; and (ii) a cold, dense layer of air is formed at ...
Chu, M.-C., Leng, D.
core   +2 more sources

Observations and scaling of travelling bubble cavitation [PDF]

, 1995
Recent observations of growing and collapsing bubbles in flows over axisymmetric headforms have revealed the complexity of the ‘micro-fluid-mechanics’ associated with these bubbles (van der Meulen & van Renesse 1989; Briancon-Marjollet et al.
Brennen, C. E., Ceccio, S. L., de Chizelle, Y. Kuhn   +2 more
core   +1 more source

Experimental study on the collapse behavior of cavitation bubbles under low ambient pressure conditions

Ultrasonics Sonochemistry
Cavitation bubble dynamics at low ambient pressure differ from those at normal pressure, which can affect the efficiency of cavitation applications in industrial, medical fields, etc.
Tong Qu, Jing Luo, Weilin Xu, Jie Li, Guihua Fu, Yueqing Ma, Zhuoqi Zhao   +6 more
doaj   +1 more source

Lateral Degassing Method for Disposable Film-Chip Microfluidic Devices

Membranes, 2021
It is critical to develop a fast and simple method to remove air bubbles inside microchannels for automated, reliable, and reproducible microfluidic devices.
Suhee Park, Hyungseok Cho, Junhyeong Kim, Ki-Ho Han   +3 more
doaj   +1 more source

Numerical study of laser-induced cavitation bubble with consideration of chemical reactions

Ultrasonics Sonochemistry
Cavitation generated during injector jetting can significantly affect fuel atomization. Laser-induced cavitation bubble is an important phenomenon in laser induced plasma ignition technology.
Chengyan Wang, Hong Yan, Ruifan Zhang, Fuzhen Chen, Fan Liu   +4 more
doaj   +1 more source

Numerical Prediction of Cavitation Erosion Intensity in Cavitating Flows around a Clark Y 11.7% Hydrofoil

Journal of Fluid Science and Technology, 2010
A numerical prediction method of cavitation erosion is proposed. In this method, the analysis of bubbles in cavitating flows is performed and the intensity of cavitation erosion is evaluated by the impact pressure induced by spherical bubble collapse. In
Naoya OCHIAI, Yuka IGA, Motohiko NOHMI, Toshiaki IKOHAGI   +3 more
doaj   +1 more source

Calibration of Numerical Simulation Methods for Underwater Explosion with Centrifugal Tests

Shock and Vibration, 2019
The centrifugal underwater explosion tests and corresponding numerical simulations were carried out to study the laws of shock wave and bubble pulsation. A semiempirical method to determine JWL state equation parameters was given.
Qiusheng Wang, Shicong Liu, Haoran Lou
doaj   +1 more source

An Alternative Method to Deduce Bubble Dynamics in Single Bubble Sonoluminescence Experiments [PDF]

, 2002
In this paper we present an experimental approach that allows to deduce the important dynamical parameters of single sonoluminescing bubbles (pressure amplitude, ambient radius, radius-time curve) The technique is based on a few previously confirmed ...
A. Eller, A. Prosperetti, A. Prosperetti, A. Prosperetti, A. Prosperetti, B. Gompf, B.D. Storey, B.P. Barber, B.P. Barber, B.P. Barber, B.P. Barber, C.C. Wu, D. Lohse, D. Lohse, D.F. Gaitan, G. Simon, G. Simon, G. Simon, G. Vacca, G.A. Delgadino, J. Holzfuss, J.A. Ketterling, J.A. Ketterling, J.A. Ketterling, K. Yasui, K. Yasui, K.R. Weninger, K.R. Weninger, M. T. Levinsen, M.-C. Chu, M.M. Fyrillas, M.P. Brenner, M.P. Brenner, M.P. Brenner, P. Smereka, P.H. Roberts, R. Hiller, R. Löfstedt, R. Pecha, R. Pecha, R.G. Holt, R.G. Holt, S. Hilgenfeldt, S. Hilgenfeldt, S.J. Putterman, T.J. Matula, T.J. Matula, T.J. Matula, U. Parlitz, U.H. Augsdörfer, W. Lauterborn, W. Lauterborn, W.C. Moss, W.J. Lentz, Y.J. Tian   +54 more
core   +3 more sources