Pump-probe X-ray holographic imaging of laser-induced cavitation bubbles with femtosecond FEL pulses
Nature Communications, 2021 Cavitation bubbles show many nonlinear characteristics of liquid and gas phase. Here the authors demonstrate coherent diffractive imaging of cavitation bubble using infrared pump and XFEL probe and discuss the formation and evolution of the bubbles.
M. Vassholz +20 more
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A bubble fission model for collapsing cavitation bubbles
Physics of Fluids, 2004 A bubble fission model that takes into account energy dissipation during violent collapses of cavitation bubbles is introduced by assuming volume conservation and continuity of the gas pressure during instantaneous breakup, invoking either Rayleigh–Taylor instability or high speed microjet formation.
Delale, CF, Tunc, M
openaire +5 more sources
Non-Spherical Cavitation Bubbles: A Review
FluidsCavitation is a phase-change phenomenon from the liquid to the gas phase due to an increased flow velocity. As it causes severe erosion and noise, it is harmful to hydraulic machinery such as pumps, valves, and screw propellers.
Boxin Jia, Hitoshi Soyama
doaj +2 more sources
Shockwaves from air bubbles within pits induced by nearby cavitation bubbles
Ultrasonics SonochemistryThe cavitation intensity in near-boundary regions was significantly affected by the smoothness of boundaries. Micro pits on these boundaries may harbor smaller air bubbles or gas nuclei, and cavitation bubbles within cavitation clouds or cavitation ...
Jie Li +5 more
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Cavitation bubbles dynamics and cavitation erosion in water jet
Results in Physics, 2018 A water jet test rig is used to the cavitation test of the brass samples. The single crater and the pits-group, are found on the specimen surfaces after 15 h test.
Feng Cheng +3 more
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Sustainable design and durability of domestic micro combined heat and power scroll expander systems. [PDF]
Research to understand the mechanisms of wear within the main components of three different micro-CHP scroll expander systems was conducted. This was performed in order to identify the possible tribo-mechanical effects (abrasion, adhesion, cavitation ...
Tzanakis, Iakovos
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Bubbly cavitating flow generation and investigation of its erosional nature for biomedical applications [PDF]
, 2009 This paper was presented at the 2nd Micro and Nano Flows Conference (MNF2009), which was held at Brunel University, West London, UK. The conference was organised by Brunel University and supported by the Institution of Mechanical Engineers, IPEM, the ...
Oral, O +6 more
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Numerical Study of the Pulsation Process of Spark Bubbles under Three Boundary Conditions
Journal of Marine Science and Engineering, 2021 In this study, a compressible three-phase homogeneous model was established using ABAQUS/Explicit. These models can numerically simulate the pulsation process of cavitation bubbles in the free field, near the flat plate target, and near the curved ...
Chunlong Ma +5 more
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Understanding cavitation-related mechanism of therapeutic ultrasound in the field of urology: Part I of therapeutic ultrasound in urology [PDF]
Investigative and Clinical Urology, 2022 Shock waves are commonly used in the field of urology. They have two phases, positive and negative, and the bubble generation is roughly classified into acoustic cavitation (AC) and laser-induced cavitation (LIC).
Sung Yong Cho +5 more
doaj +1 more source
Influence of inlet pressure on cavitation characteristics in regulating valve
Engineering Applications of Computational Fluid Mechanics, 2020 The cavitation development process in regulating valve under different inlet pressures is investigated experimentally and numerically in our paper. The influence of inlet pressure Pin on cavitation location, shape, area and intensity is studied in axial ...
Xiumei Liu +7 more
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