Detail publikace

Simulation and dynamics of secondary vortex structures induced by low discharge and high swirl in cylindrical pipe

ŠTEFAN, D. RUDOLF, P. POCHYLÝ, F.

Originální název

Simulation and dynamics of secondary vortex structures induced by low discharge and high swirl in cylindrical pipe

Typ

článek ve sborníku mimo WoS a Scopus

Jazyk

angličtina

Originální abstrakt

The fluid flow in pipe with low discharge and high swirl is convenient for formation of secondary flow structures. The onset of secondary vortex structures is driven by flow disturbances, i.e., pressure pulsations, local change of geometry, etc. Such situation might for example appears in the suction part of centrifugal pump operated at low discharge. Once these flow conditions appear in the suction of centrifugal pump, the flow is unstable and the pump performance is affected in terms of delivery head drop. The vortex structures forms flow blockage and since their spatial shape is not axi-symmetric there is also significant flow dynamics. This work presents the results of numerical calculation by means of CFD simulation of corresponding flow regime of centrifugal pump. The focus is on description of vortex structures dynamics which is important for further application of flow control devices to enhance pump operation.

Klíčová slova

centrifugal pump; inlet re-circulation, vortex, pressure pulsations

Autoři

ŠTEFAN, D.; RUDOLF, P.; POCHYLÝ, F.

Vydáno

30. 11. 2024

Nakladatel

University of West Bohemia

Místo

Plzeň, Czech Republic

ISBN

978-80-261-1249-5

Kniha

PROCEEDINGS OF COMPUTATIONAL MECHANICS 2024

Strany od

164

Strany do

166

Strany počet

3

URL

https://naos-be.zcu.cz/server/api/core/bitstreams/071f4a22-1c5d-44ea-a834-5288f59b065b/content

BibTex

@inproceedings{BUT193667,
  author="David {Štefan} and Pavel {Rudolf} and František {Pochylý}",
  title="Simulation and dynamics of secondary vortex structures induced by low discharge and high swirl in cylindrical pipe",
  booktitle="PROCEEDINGS OF COMPUTATIONAL MECHANICS 2024",
  year="2024",
  pages="164--166",
  publisher="University of West Bohemia",
  address="Plzeň, Czech Republic",
  isbn="978-80-261-1249-5",
  url="https://naos-be.zcu.cz/server/api/core/bitstreams/071f4a22-1c5d-44ea-a834-5288f59b065b/content"
}