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New Advances of Cavitation Instabilities

Cavitation refers to the formation of vapor cavities in a liquid when the local pressure becomes lower than the saturation pressure. In many hydraulic applications, cavitation is considered as a non-desirable phenomenon, as far as it may cause performance degradation, vibration problems, enhance bro...

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Format: Online
Sprog:engelsk
Udgivet: MDPI - Multidisciplinary Digital Publishing Institute 2022
Fag:
cavitation
cavitation number
globe valve
valve cage
computational fluid dynamics
hydrodynamic cavitation
compressible two-phase flow
turbulence modelling
system instabilities
jet
vortex
mechanical surface treatment
cavitation peening
partial cavitation
super-cavitation
laminar cavitation
cavitation instabilities
vortex rope
Francis turbine
CFD
RANS
slamming
fluid-structure interaction
fluid detachment
hydrofoil
bulb turbine
bulb turbine runner
flow visualization
cavitation tunnel
regression model
Kelvin-Helmholtz instability
microchannel
numerical simulation
multifunction cavitation
water jet cavitation
ultrasonic cavitation
high-temperature high-pressure cavitation
peening natural aging
low-temperature low-pressure cavitation
peening aging
Francis Turbine
thema EDItEUR::G Reference, Information and Interdisciplinary subjects::GP Research and information: general
thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TB Technology: general issues
Online adgang:ONIX_20220111_9783036515465_379
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Summary:Cavitation refers to the formation of vapor cavities in a liquid when the local pressure becomes lower than the saturation pressure. In many hydraulic applications, cavitation is considered as a non-desirable phenomenon, as far as it may cause performance degradation, vibration problems, enhance broad-band noise-emission, and eventually trigger erosion. In this Special Issue, recent findings about cavitation instabilities are reported. More precisely, the dynamics of cavitation sheets are explored at very low Reynolds numbers in laminar flows, and in microscale applications. Both experimental and numerical approach are used. For the latter, original methods are assessed, such as smooth particles hydrodynamics or detached eddy simulations coupled to a compressible approach.

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