COMPUTATIONAL SIMULATION OF CAVITATION BUBBLE COLLAPSE
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F20%3APU145409" target="_blank" >RIV/00216305:26210/20:PU145409 - isvavai.cz</a>
Result on the web
<a href="https://www.engmech.cz/improc/2020/094.pdf" target="_blank" >https://www.engmech.cz/improc/2020/094.pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.21495/5896-3-094" target="_blank" >10.21495/5896-3-094</a>
Alternative languages
Result language
angličtina
Original language name
COMPUTATIONAL SIMULATION OF CAVITATION BUBBLE COLLAPSE
Original language description
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.
Czech name
—
Czech description
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Classification
Type
D - Article in proceedings
CEP classification
—
OECD FORD branch
21100 - Other engineering and technologies
Result continuities
Project
<a href="/en/project/GA19-10660S" target="_blank" >GA19-10660S: Removal of estrogens from waste water using hydrodynamic cavitation in combination with advanced oxidation processes</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
ENGINEERING MECHANICS 2020
ISBN
978-80-214-5896-3
ISSN
1805-8248
e-ISSN
—
Number of pages
4
Pages from-to
94-97
Publisher name
BRNO UNIV TECHNOL, FAC MECHANICAL ENGINEERING
Place of publication
BRNO
Event location
Online
Event date
Nov 24, 2020
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
000667956100016