Flow generated by radial flow impellers: PIV measurements and CFD simulations

Avinash Khopkar*, Joella Aubin, C. Rubio-Atoche, Catherine Xuereb, Nathalie Le Sauze, Joel Bertrand, Vivek V. Ranade

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)


Particle image velocimetry (PIV) and computational fluid dynamics (CFD) have been used to investigate the single phase and gas-liquid flow generated by a Scaba SRGT turbine. The key details of the trailing vortices, the turbulent flow around the impeller blades and the accumulation of gas have been studied by using PIV measurements and CFD simulations. Both the experimental and numerical results show that the flow and the trailing vortices are not altered significantly upon gassing. The simulated results are generally in good agreement with the experimental findings. The CFD simulations also show that only small low-pressure regions exist behind the blades of the Scaba turbine compared with the very large low-pressure zones formed by the Rushton turbine. These results enable better understanding of the improved performance of the Scaba turbine for gas-liquid dispersions compared with the Rushton turbine.

Original languageEnglish
JournalInternational Journal of Chemical Reactor Engineering
Publication statusPublished - 2004
Externally publishedYes


  • CFD
  • Gas-liquid flow
  • PIV
  • Rushton turbine
  • Scaba turbine
  • Stirred vessel

ASJC Scopus subject areas

  • Energy(all)
  • Engineering(all)

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