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A low reynolds number k‐ϵ modelling of turbulent pipe flow: Flow pattern and energy balance
Author(s) -
Thakre Shirish S.,
Joshi Jyeshtharaj B.
Publication year - 2001
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450790204
Subject(s) - reynolds number , turbulence , mechanics , energy balance , reynolds decomposition , flow (mathematics) , mathematics , reynolds stress equation model , magnetic reynolds number , turbulence kinetic energy , physics , statistical physics , reynolds equation , k omega turbulence model , thermodynamics
Abstract The present paper addresses a comparative analysis of twelve different versions of low Reynolds number k ‐ϵ turbulence models. The predictive capability of the models have been tested on the basis of the flow patterns and energy balance. Numerical simulations were performed at the Reynolds numbers of 7400, 22 000 and 500 000. The predicted mean axial velocity and turbulent kinetic energy were compared with the experimental data of Durst et al. (1995) and Schildknecht et al.(1979) for the Reynolds number of 7400 and 22000 respectively. The overall energy balance was established at three Reynolds numbers of 7400, 22 000 and 5. A comparison of all the models has been predicted.