Numerical Analysis and Experimental Investigation of Cavitating Flows Considering Thermal and Compressibility Effects

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F28645413%3A_____%2F22%3AN0000003" target="_blank" >RIV/28645413:_____/22:N0000003 - isvavai.cz</a>
Result on the web
<a href="https://www.mdpi.com/1996-1073/15/18/6503" target="_blank" >https://www.mdpi.com/1996-1073/15/18/6503</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/en15186503" target="_blank" >10.3390/en15186503</a>

Result language
angličtina
Original language name
Numerical Analysis and Experimental Investigation of Cavitating Flows Considering Thermal and Compressibility Effects
Original language description
This article deals with the numerical simulation of unsteady cavitating flow around hydrofoils, supported by experimental research realized in a cavitation tunnel situated in the Centre of Hydraulic Research. Two straight NACA hydrofoils (NACA0020 and NACA2412) were employed. The comprehensive unsteady CFD analysis was based on scale-resolving simulations (hereinafter SRS) with the aim of capturing correctly the interactions between the cavitation structures and re-entrant flow as well as the compressibility and thermal effects of cavitation. The static pressure fluctuations during the cavity oscillation cycles and the evaporation and condensation processes are discussed in detail. To predict correctly the high-pressure peaks during the bubble cloud collapses and the pressure pulse propagation speed, the real properties of water and the mixture total energy conservation equation were considered. In addition, the estimated content of undissolved air was taken into account. The numerical simulations were validated by means of already published experiments or compared with experiments conducted by the authors, and with good agreement.
Czech name
—
Czech description
—

Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
20302 - Applied mechanics

Project
<a href="/en/project/EF17_049%2F0008408" target="_blank" >EF17_049/0008408: Hydrodynamic design of pumps</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Similar results(10)