Publication detail
Simulation of vortex breakdown in an enclosed cylinder as a preliminary study of the draft tube vortex rope creation
RUDOLF, P.
Czech title
Simulace rozpadu víru v uzavřeném válci jako prvotní studie vzniku vírového copu v sací troubě
English title
Simulation of vortex breakdown in an enclosed cylinder as a preliminary study of the draft tube vortex rope creation
Type
conference paper
Language
en
Original abstract
Vortex breakdown occurs as instability of the steady flow in many engineering applications (turbine diffusers, swirl chambers, etc.). Paper presents investigation of this phenomena in an enclosed cylinder. This original problem is further extended to study the influence of the cone inserted inside the cylinder. The cone shape (sharp or blunted) and the cone rotation are examined. It is concluded that especially cone rotation significantly influences the initiation of vortex breakdown and the overall flow pattern.
Czech abstract
V mnoha technických aplikaccíh obsahujících vířivé proudění dochází k rozpadu víru (difuzor tubíny, spalovací komora, atd.). Článek se věnuje rozboru tohoto jevu při proudění v uzavřeném válci. Originální problém je rozšířen o studium vlivu kuželové vestavby a její rotace ve smyslu nebo proti smyslu původního víru. Je sledován vliv rotace kužele na vznik rozpadu víru a jeho polohu.
English abstract
Vortex breakdown occurs as instability of the steady flow in many engineering applications (turbine diffusers, swirl chambers, etc.). Paper presents investigation of this phenomena in an enclosed cylinder. This original problem is further extended to study the influence of the cone inserted inside the cylinder. The cone shape (sharp or blunted) and the cone rotation are examined. It is concluded that especially cone rotation significantly influences the initiation of vortex breakdown and the overall flow pattern.
Keywords in Czech
rozpad víru, uzavřený válce, náboj, vírový cop, stabilita, laminární proudění
Keywords in English
vortex breakdown, enclosed cylinder, cone, vortex rope, stability, laminar flow
RIV year
2008
Released
20.08.2008
Publisher
WSEAS Press
Location
Rhodes, Greece
ISBN
978-960-6766-98-5
Book
Proceedings of the 6th IASME/WSEAS International Conference on Fluid MEchanics and Aerodynamics
Pages from–to
147–151
Pages count
5
BIBTEX
@inproceedings{BUT27675,
author="Pavel {Rudolf},
title="Simulation of vortex breakdown in an enclosed cylinder as a preliminary study of the draft tube vortex rope creation",
booktitle="Proceedings of the 6th IASME/WSEAS International Conference on Fluid MEchanics and Aerodynamics",
year="2008",
month="August",
pages="147--151",
publisher="WSEAS Press",
address="Rhodes, Greece",
isbn="978-960-6766-98-5"
}