000009209 001__ 9209
000009209 005__ 20141204092418.0
000009209 04107 $$aeng
000009209 046__ $$k12/05/2014
000009209 100__ $$aRudolf, P.
000009209 24500 $$aInstability of the swirling flows with/without cavitation

000009209 24630 $$n18.$$pEngineering Mechanics 2012
000009209 260__ $$bInstitute of Theoretical and Applied Mechanics, AS CR, Prague
000009209 506__ $$arestricted
000009209 520__ $$2eng$$aSwirling flows are very susceptible to instabilities. Very often they are present in draft tubes of hydraulic turbines as so called vortex ropes resulting from spiral vortex breakdown. Moreover the situation can be complicated by cavitation within the core of the vortex. Paper presents various approaches, which were applied to enhance understanding of this problem. Numerical approach to study the linear stability including influence of cavitation is proposed and extensive nonlinear CFD simulations are described.

000009209 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000009209 653__ $$aswirling flow, cavitation, stability, vortex breakdown

000009209 7112_ $$aEngineering Mechanics 2012$$cSvratka (CZ)$$d12/05/2014 - 15/05/2014$$gEM2012
000009209 720__ $$aRudolf, P.$$iPochylý, F.$$iČermák, L.$$iŠtefan, D.
000009209 8560_ $$ffischerc@itam.cas.cz
000009209 8564_ $$s239059$$uhttps://invenio.itam.cas.cz/record/9209/files/145_Rudolf_P-FT.pdf$$yOriginal version of the author's contribution as presented on CD, paper (No. 145).
000009209 962__ $$r8924
000009209 980__ $$aPAPER