Results 31 to 40 of about 566,611 (251)

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

Experimental Comparative Investigations to Evaluate Cavitation Conditions within a Centrifugal Pump Based on Vibration and Acoustic Analyses Techniques

open access: yesArchives of Acoustics, 2020
Cavitation is an essential problem that occurs in all kinds of pumps. This cavitation contributes highly towards the deterioration in the performance of the pump.
Ahmed Ramadhan AL-OBAIDI
doaj   +1 more source

Effects of medium viscoelasticity on bubble collapse strength of interacting polydisperse bubbles

open access: yesUltrasonics Sonochemistry, 2023
Due to its physical and/or chemical effects, acoustic cavitation plays a crucial role in various emerging applications ranging from advanced materials to biomedicine. The cavitation bubbles usually undergo oscillatory dynamics and violent collapse within
Dui Qin   +4 more
doaj   +1 more source

Acoustic surface cavitation [PDF]

open access: yes, 2011
Merely the presence of compressible entities, known as bubbles, greatly enriches the physical phenomena encountered when introducing ultrasound in a liquid. Mediated by the response of these bubbles, the otherwise diffuse and relatively low energy density of the acoustic field can induce strong, localized liquid motion, high internal temperatures and ...
openaire   +1 more source

Exploring viscosity influence mechanisms on coating removal: Insights from single cavitation bubble behaviours in low-frequency ultrasonic settings

open access: yesUltrasonics Sonochemistry
The role of acoustic cavitation in various surface cleaning disciplines is important. However, the physical mechanisms underlying acoustic cavitation-induced surface cleansing are poorly understood.
Hao Wu   +8 more
doaj   +1 more source

Acoustic analysis of vortex-based cavitation devices: inception and extent of cavitation [PDF]

open access: yes, 2021
Hydrodynamic cavitation (HC) is a process of generation, growth, and collapse of gas-/vapor-filled cavities leading to intense shear and localized hot spots.
Nanda V. Ranade (12586063)   +8 more
core   +1 more source

Experimental Investigation to Utilize Low-cost Sensors of Early Cavitation Prediction in Axial Pump Based on Acoustic and Vibration Approaches [PDF]

open access: yesJournal of Applied Fluid Mechanics
Cavitation, defined by the formation and collapse of vapor bubbles in a liquid, presents a significant challenge to the reliable operation of axial pumps.
A. R. Al-Obaidi, J. Alhamid
doaj   +1 more source

Evaluation of the effect of pressure conditions on the aggressive intensity of hydrodynamic cavitation produced by a Venturi tube

open access: yesNihon Kikai Gakkai ronbunshu, 2017
For hydrodynamic cavitation produced by a Venturi tube, cavitation bubble is collapsed at downstream of a nozzle and its intensity is influenced by upstream pressure and downstream pressure.
Shu HOSHINO, Hitoshi SOYAMA
doaj   +1 more source

Barrier-breaking effects of ultrasonic cavitation for drug delivery and biomarker release

open access: yesUltrasonics Sonochemistry, 2023
Recently, emerging evidence has demonstrated that cavitation actually creates important bidirectional channels on biological barriers for both intratumoral drug delivery and extratumoral biomarker release.
Yaxin Hu   +4 more
doaj   +1 more source

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

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