Detail publikačního výsledku

Cavitation in swirling flows

RUDOLF, P.; ŠTEFAN, D.; HUDEC, M.; KOZÁK, J.

Originální název

Cavitation in swirling flows

Anglický název

Cavitation in swirling flows

Druh

Stať ve sborníku v databázi WoS či Scopus

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.

Anglický 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

Klíčová slova v angličtině

cavitation, swirling flow, vorticity, POD

Autoři

RUDOLF, P.; ŠTEFAN, D.; HUDEC, M.; KOZÁK, J.

Vydáno

08.12.2014

Nakladatel

RUB Bochum

Místo

Bochum

Kniha

Proceedings of Kolloquium Kavitation und Kavitations Erosion

Strany od

1

Strany do

15

Strany počet

15

Plný text v Digitální knihovně

http://hdl.handle.net/

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"
}