Luka Kevorkijan (Avtor), Marko Pezdevšek (Avtor), Ignacijo Biluš (Avtor), Gorazd Hren (Avtor)

Povzetek

In this paper we compared different driving pressure approaches to calculate the cavitation potential energy from a source, which is transferred to a surface. The first approach used the reference pressure, the second approach used the pressure calculated at each timestep with no averaging, the third approach used the averaged pressure values from all timesteps included in one shedding cycle, and the last approach used pressure values from the steady state simulations results. The results show that for all formulations the averaged pressure values and steady state pressure values give similar results in terms of mean potential power distribution on the hydrofoil surface as in absolute values. The reference pressure approach gave similar results for the derivative and divergence formulation while for the source term the mean potential power distribution on the hydrofoil surface differs and the maximums were near the leading edge. The approach where we used no pressure averaging gave adequate results in terms of mean potential power distribution but differs from other approaches in absolute values which were considerably lower for all potential power formulations.

Ključne besede

kavtiacija;erozijski potencial;vozni tlak;numerične simulacije;cavitation;erosion potentional;driving pressure;numerical simulations;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UM FS - Fakulteta za strojništvo
Založnik: DAAAM International Vienna
UDK: 519.6:620.1
COBISS: 155289603 Povezava se bo odprla v novem oknu
ISSN: 1726-4529
Št. ogledov: 400
Št. prenosov: 270
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Slovenski jezik
Sekundarne ključne besede: kavtiacija;erozijski potencial;vozni tlak;numerične simulacije;
Vrsta dela (COBISS): Znanstveno delo
Strani: str. 233-244
Letnik: ǂVol. ǂ22
Zvezek: ǂno. ǂ2
Čas izdaje: June 2023
DOI: 10.2507/IJSIMM22-2-639
ID: 22967229