Standard k- model, SHIH k- model and RSM predictions of trailing vortex induced by a 45o pitched blade turbine

Research output: Book/ReportReport

Abstract

The trailing vortex induced by a 4/45° ptd was modelled using Fluent 5 CFD software. A dense grid, locally refined with hanging nodes was used in the impeller swept area. The standard and Shih k-e models as well as the Reynolds stress model (RSM) with near-wall calculation were tested. The standard k-e model predicted the tip vortex and the main flow quite well, only damping the vortex too early. The Shih k-e model improved the prediction of vortex extend and rotation, but failed to predict k correctly in the rotating coordinate zone of the multiple reference frame grid. The RSM predicted the strongest vortex, but underpredicted k in bulk region of the tank.
Original languageEnglish
PublisherVTT Technical Research Centre of Finland
Publication statusPublished - 2000
MoE publication typeD4 Published development or research report or study

Publication series

SeriesVTT Energy Reports
Number23/2000
ISSN1457-3350

Fingerprint

Turbomachine blades
Vortex flow
Turbines
Computational fluid dynamics
Damping

Keywords

  • stirred tank
  • cfd
  • turbulence
  • trailing vortex

Cite this

Syrjänen, J. (2000). Standard k- model, SHIH k- model and RSM predictions of trailing vortex induced by a 45o pitched blade turbine. VTT Technical Research Centre of Finland. VTT Energy Reports, No. 23/2000
Syrjänen, Jouni. / Standard k- model, SHIH k- model and RSM predictions of trailing vortex induced by a 45o pitched blade turbine. VTT Technical Research Centre of Finland, 2000. (VTT Energy Reports; No. 23/2000).
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series = "VTT Energy Reports",
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Syrjänen, J 2000, Standard k- model, SHIH k- model and RSM predictions of trailing vortex induced by a 45o pitched blade turbine. VTT Energy Reports, no. 23/2000, VTT Technical Research Centre of Finland.

Standard k- model, SHIH k- model and RSM predictions of trailing vortex induced by a 45o pitched blade turbine. / Syrjänen, Jouni.

VTT Technical Research Centre of Finland, 2000. (VTT Energy Reports; No. 23/2000).

Research output: Book/ReportReport

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Syrjänen J. Standard k- model, SHIH k- model and RSM predictions of trailing vortex induced by a 45o pitched blade turbine. VTT Technical Research Centre of Finland, 2000. (VTT Energy Reports; No. 23/2000).