Detail publikace
Stability of the Steady Flow in Rotationally Symmetrical Domain
POCHYLÝ, F. RUDOLF, P. HABÁN, V. KOUTNÍK, J. KRÜGER, K.
Anglický název
Stability of the Steady Flow in Rotationally Symmetrical Domain
Typ
Článek recenzovaný mimo WoS a Scopus
Jazyk
en
Originální abstrakt
Perturbation analysis with a linear approach of the flow in cylindrical domain was carried out in this paper. Analysis is based on Euler equations for inviscid fluid and continuity equation in rotating frame of reference. Eigen mode shapes of velocities visualize the flow patterns and eigen mode shapes of the cavitating vortex rope show origin of the elliptical vortex rope cross-section. Investigation confirms that boundary conditions have dominant effect on steady flow stability. Results indicate that careful design of the runner and the draft tube can lead to reduction of the instability consequences or to shifting the instability to different operational ranges.
Klíčová slova anglicky
Swirl, stability, rotationally symmetrical, eigen value, cylinder, draft tube, elliptical
Vydáno
2007-10-24
Nakladatel
Politechnica University of Timisoara
Místo
Timisoara
ISSN
1224-6077
Časopis
Scientific Bulletin of the "Politehnica" University of Timisoara
Ročník
52
Číslo
6
Strany od–do
93–100
Počet stran
8
BIBTEX
@article{BUT43906,
author="František {Pochylý} and Pavel {Rudolf} and Vladimír {Habán} and Jiří {Koutník} and Klaus {Krüger}",
title="Stability of the Steady Flow in Rotationally Symmetrical Domain",
journal="Scientific Bulletin of the {"}Politehnica{"} University of Timisoara",
year="2007",
volume="52",
number="6",
pages="93--100",
issn="1224-6077"
}