Results 21 to 30 of about 138,530 (207)

Sonoporation from Jetting Cavitation Bubbles [PDF]

open access: yesBiophysical Journal, 2006
The fluid dynamic interaction of cavitation bubbles with adherent cells on a substrate is experimentally investigated. We find that the nonspherical collapse of bubbles near to the boundary is responsible for cell detachment. High-speed photography reveals that a wall bounded flow leads to the detachment of cells. Cells at the edge of the circular area
Ohl, C.D.   +6 more
openaire   +4 more sources

Revealing the origins of vortex cavitation in a Venturi tube by high speed X-ray imaging

open access: yesUltrasonics Sonochemistry, 2023
Hydrodynamic cavitation is useful in many processing applications, for example, in chemical reactors, water treatment and biochemical engineering. An important type of hydrodynamic cavitation that occurs in a Venturi tube is vortex cavitation known to ...
Hitoshi Soyama   +20 more
doaj   +1 more source

Cavitation in linear bubbles [PDF]

open access: yesJournal of Fluid Mechanics, 2009
Recent work has developed a beautiful model system for studying the energy focusing and heating power of collapsing bubbles. The bubble is effectively one-dimensional and the collapse and heating can be quantitatively measured. Thermal effects are shown to play an essential role in the time-dependent dynamics.
openaire   +4 more sources

Hydrodynamics, acoustics and scaling of traveling bubble cavitation [PDF]

open access: yes, 1994
Recent observations of the geometries of growing and collapsing bubbles over axisymmetric headforms have revealed the complexity of the "microfluidmechanics" associated with these flows (Hamilton et al., 1982, Briancon Marjollet and Franc, 1990, Ceccio ...
Kuhn de Chizelle, Yan P.
core   +1 more source

Cavitation And Bubble Dynamics [PDF]

open access: yes, 1995
Abstract The book describes and explains the fundamental physical processes involved in bubbly dynamics and the phenomenon of cavitation. The study of cavitation and bubbly flow applies to many areas of interest; from valve damage in hydroelectric equipment, ship propellors and internal combustion engines to the performance of ...
openaire   +2 more sources

Enhancement of oscillation amplitude of cavitation bubble due to acoustic wake effect in multibubble environment

open access: yesUltrasonics Sonochemistry, 2021
Acoustic cavitation occurs in ultrasonic treatment causing various phenomena such as chemical synthesis, chemical decomposition, and emulsification. Nonlinear oscillations of cavitation bubbles are assumed to be responsible for these phenomena, and the ...
Takuya Yamamoto, Sergey V. Komarov
doaj   +1 more source

Sterilization of Biofilm in Foam Using a Single Cavitation Bubble [PDF]

open access: yesMATEC Web of Conferences, 2020
This article presents the sterilization of bacteria using cavitation bubbles. Cavitation generated by ultrasound creates a cavitation cloud. Therefore is more advantageous to generate the cavitation bubbles by laser-induced breakdown, because it is ...
Schovanec Petr   +7 more
doaj   +1 more source

The collapse of single bubbles and approximation of the far-field acoustic emissions for cavitation induced by shock wave lithotripsy [PDF]

open access: yes, 2011
Recent clinical trials have shown the efficacy of a passive acoustic device used during shock wave lithotripsy (SWL) treatment. The device uses the far-field acoustic emissions resulting from the interaction of the therapeutic shock waves with the tissue
Turangan, C.K.   +7 more
core   +1 more source

Analysis of the cavitating flow induced by an ultrasonic horn – Experimental investigation on the influence of actuation phase, amplitude and geometrical boundary conditions

open access: yesEPJ Web of Conferences, 2014
Till today, factors influencing the formation and collapse of densely distributed, interacting cavitation bubbles are only qualitatively understood.
Müller Saskia   +4 more
doaj   +1 more source

Fission of collapsing cavitation bubbles [PDF]

open access: yesJournal of Fluid Mechanics, 2002
High-speed observations clearly show that though a collapsing cavitation bubble approaches its minimum size as a coherent single volume, it usually reappears in the first rebounding frame as a cloud of much smaller bubbles or as a highly distorted single volume.
openaire   +3 more sources

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