Journal of Mechanical Science and Technology

, Volume 31, Issue 4, pp 1711–1719 | Cite as

Numerical simulations of the internal flow pattern of a vortex pump compared to the Hamel-Oseen vortex

  • Angela Gerlach
  • Enrico Preuss
  • Paul Uwe Thamsen
  • Flemming Lykholt-Ustrup


We did a numerical study of the internal flow field of a vortex pump. Five operating points were considered and validated through a measured characteristic curve. The internal flow pattern of a vortex pump was analyzed and compared to the Hamel-Oseen vortex model. The calculated flow field was assessed with respect to the circumferential velocity, the vorticity and the axial velocity. Whereas the trajectories of the circumferential velocity were largely in line with the Hamel-Oseen vortex model, the opposite was true for vorticity. Only the vorticity at strong part load was in line with the predictions of the Hamel-Oseen vortex model. We therefore compared the circumferential velocity and vorticity for strong part load operation to the analytical predictions of the Hamel-Oseen vortex model. The simulated values were below the analytical values. The study therefore suggests that a vortex similar to the Hamel-Oseen vortex is only present at the strong part load operation.


Flow pattern Hamel-Oseen vortex Numerical simulation Vortex Vortex pump 


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Copyright information

© The Korean Society of Mechanical Engineers and Springer-Verlag Berlin Heidelberg 2017

Authors and Affiliations

  • Angela Gerlach
    • 1
  • Enrico Preuss
    • 1
  • Paul Uwe Thamsen
    • 1
  • Flemming Lykholt-Ustrup
    • 2
  1. 1.Institute of Fluid System DynamicsTechnische Universität BerlinBerlinGermany
  2. 2.Grundfos Holding A/SBjerringbroDenmark

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