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RUDOLF, P. ŠTEFAN, D. HUDEC, M. KOZÁK, J.
Originální název
Cavitation in swirling flows
Typ
článek ve sborníku ve WoS nebo Scopus
Jazyk
angličtina
Originální abstrakt
Cavitation often appears in tip vortices of ship propellers or in vortex ropes behind hydraulic turbine runners. Cavitating vortices are source of pressure pulsations, noise and vibrations. Present contribution focuses on behaviour of cavitating vortical structures, development of cavitating patterns and dynamics of the strongly swirling cavitating flows. Both experimental and computational results are presented for cases of straight and spiral cavitating structures. Role of additional vorticity generation due to presence of the phase interface is discussed. Additionally, advantage of using proper orthogonal decomposition (POD) methodology for complete spatio-temporal description of the cavitating flows behavior is presented and documented, again both on data from experimental visualizations and computational simulations.
Klíčová slova
cavitation, swirling flow, vorticity, POD
Autoři
RUDOLF, P.; ŠTEFAN, D.; HUDEC, M.; KOZÁK, J.
Vydáno
8. 12. 2014
Nakladatel
RUB Bochum
Místo
Bochum
Strany od
1
Strany do
15
Strany počet
BibTex
@inproceedings{BUT111331, author="Pavel {Rudolf} and David {Štefan} and Martin {Hudec} and Jiří {Kozák}", title="Cavitation in swirling flows", booktitle="Proceedings of Kolloquium Kavitation und Kavitations Erosion", year="2014", pages="1--15", publisher="RUB Bochum", address="Bochum" }