Repository logo

Infoscience

  • English
  • French
Log In
Logo EPFL, École polytechnique fédérale de Lausanne

Infoscience

  • English
  • French
Log In
  1. Home
  2. Academic and Research Output
  3. Conferences, Workshops, Symposiums, and Seminars
  4. Roll-up region of tip vortex: numerical investigation
 
conference paper

Roll-up region of tip vortex: numerical investigation

Reclari, M.
•
Sano, T.
•
Iino, M.
Show more
January 1, 2019
29Th Iahr Symposium On Hydraulic Machinery And Systems
29th IAHR Symposium on Hydraulic Machinery and Systems (IAHR)

The appearance of gas-filled vortices at the tip of hydraulic machines blades is usually associated with increase of losses, vibrations, noise and erosion risk. The understanding of the roll-up region, where the boundary layer on the pressure side crosses the foil and generates the vortex on the suction side, is of primary importance to control the vortex behaviour. However, the very strong gradients encountered in the regions make numerical simulations and experimental measurements particularly challenging. In the present paper we study the roll-up region of a tip vortex on a skewed-back blade, comparing the results with experimental observations (position of the rollup region, cavitation number at cavitation inception) as well as with detailed velocity measurements, in order to identify the most appropriate computation settings. Using these settings we numerically investigate the role of the leading edge vortex and its interaction with the one generated at the tip.

  • Files
  • Details
  • Metrics
Loading...
Thumbnail Image
Name

Reclari_2019_IOP_Conf._Ser. _Earth_Environ._Sci._240_072027.pdf

Access type

openaccess

License Condition

CC BY

Size

1.05 MB

Format

Adobe PDF

Checksum (MD5)

39773a50584e2ff9cc703d5b9a310e9a

Logo EPFL, École polytechnique fédérale de Lausanne
  • Contact
  • infoscience@epfl.ch

  • Follow us on Facebook
  • Follow us on Instagram
  • Follow us on LinkedIn
  • Follow us on X
  • Follow us on Youtube
AccessibilityLegal noticePrivacy policyCookie settingsEnd User AgreementGet helpFeedback

Infoscience is a service managed and provided by the Library and IT Services of EPFL. © EPFL, tous droits réservés