PlumX Metrics
Embed PlumX Metrics

Vortex breakdown in closed containers with polygonal cross sections

Physics of Fluids, ISSN: 1089-7666, Vol: 27, Issue: 12
2015
  • 20
    Citations
  • 0
    Usage
  • 8
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    20
    • Citation Indexes
      20
  • Captures
    8

Article Description

The vortex breakdown bubble in the confined flow generated by a rotating lid in closed containers with polygonal cross sections was analysed both experimentally and numerically for the height/radius aspect ratio equal to 2. The stagnation point locations of the breakdown bubble emergence and the corresponding Reynolds number were determined experimentally and in addition computed numerically by STARCCM+ CFD software for square, pentagonal, hexagonal, and octagonal cross section configurations. The flow pattern and the velocity were observed and measured by combining the seeding particle visualization and the temporal accuracy of laser Doppler anemometry. The vortex breakdown size and position on the container axis were determined for Reynolds numbers, ranging from 1450 to 2400. The obtained results were compared with the flow structure in the closed container of cubical and cylindrical configurations. It is shown that the measured evolution of steady vortex breakdown is in close agreement with the numerical results.

Bibliographic Details

I. V. Naumov; S. V. Dvoynishnikov; I. K. Kabardin; M. A. Tsoy

AIP Publishing

Engineering; Physics and Astronomy; Chemical Engineering

Provide Feedback

Have ideas for a new metric? Would you like to see something else here?Let us know