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BURDA, R. RUDOLF, P.
Originální název
COMPUTATIONAL SIMULATION OF CAVITATION BUBBLE COLLAPSE
Typ
článek ve sborníku ve WoS nebo Scopus
Jazyk
angličtina
Originální abstrakt
Cavitation threatens lifetime of hydraulic machines, ship propellers or diesel injection nozzles, but can also serve as efficient way of pathogenic microorganisms eradication, water disinfection and chemical residuals removal. While classical Rayleigh-Plesset equation provides suitable 1D tool for description of the bubble behavior away from the wall, it suffers serious problems close to solid boundary due to its assumption of bubble sphericity during all stages of the bubble life. Therefore, a detail computational simulation based on RANS equations and multiphase Volume of Fluid approach was performed. Simulation was able to capture microjet, which deforms the bubble in solid wall vicinity, penetrates through bubble interior and is responsible for transformation from vapor bubble to vapor ring. It is important that numerical solution enabled detailed spatial description of the bubble evolution and allowed to distinguish between the pressure peaks caused by microjet impact on the wall and bubble collapse, thereby enhancing our understanding of the bubble collapse close to the solid boundary.
Klíčová slova
Cavitation bubble; Microjet; cavitation bubble collapse; Volume of fluid method; Impact pressure
Autoři
BURDA, R.; RUDOLF, P.
Vydáno
24. 11. 2020
Nakladatel
BRNO UNIV TECHNOL, FAC MECHANICAL ENGINEERING
Místo
BRNO
ISBN
978-80-214-5896-3
Kniha
ENGINEERING MECHANICS 2020
ISSN
1805-8248
Periodikum
Engineering Mechanics ....
Ročník
26
Číslo
1
Stát
Česká republika
Strany od
94
Strany do
97
Strany počet
4
URL
https://www.engmech.cz/improc/2020/094.pdf
BibTex
@inproceedings{BUT178968, author="Radim {Burda} and Pavel {Rudolf}", title="COMPUTATIONAL SIMULATION OF CAVITATION BUBBLE COLLAPSE", booktitle="ENGINEERING MECHANICS 2020", year="2020", journal="Engineering Mechanics ....", volume="26", number="1", pages="94--97", publisher="BRNO UNIV TECHNOL, FAC MECHANICAL ENGINEERING", address="BRNO", doi="10.21495/5896-3-094", isbn="978-80-214-5896-3", issn="1805-8248", url="https://www.engmech.cz/improc/2020/094.pdf" }