Numerical Study of Turbulent Helical Pipe Flow with Comparison to the Experimental Results

Anup Kumer Datta, Yasutaka Hayamizu, Toshinori Kouchi, Yasunori Nagata, Kyoji Yamamoto, Shinichiro Yanase

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Turbulent flow through helical pipes with circular cross section is numerically investigated comparing with the experimental results obtained by our team. Numerical calculations are carried out for two helical circular pipes having different pitches and the same nondimensional curvature δ (=0.1) over a wide range of the Reynolds number from 3000 to 21,000 for torsion parameter β (=torsion /2δ = 0.02 and 0.45). We numerically obtained the secondary flow, the axial flow and the intensity of the turbulent kinetic energy by use of three turbulence models incorporated in OpenFOAM. We found that the change to fully developed turbulence is identified by comparing experimental data with the results of numerical simulations using turbulence models. We also found that renormalization group (RNG) k-ϵ turbulence model can predict excellently the fully developed turbulent flow with comparison to the experimental data. It is found that the momentum transfer due to turbulence dominates the secondary flow pattern of the turbulent helical pipe flow. It is interesting that torsion effect is more remarkable for turbulent flows than laminar flows.

Original languageEnglish
Article number091204
JournalJournal of Fluids Engineering, Transactions of the ASME
Volume139
Issue number9
DOIs
Publication statusPublished - Sep 1 2017

Keywords

  • CFD
  • curvature
  • helical pipe flow
  • torsion
  • turbulence models
  • turbulent flow

ASJC Scopus subject areas

  • Mechanical Engineering

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