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Journal of Enhanced Heat Transfer
インパクトファクター: 0.562 5年インパクトファクター: 0.605 SJR: 0.175 SNIP: 0.361 CiteScore™: 0.33

ISSN 印刷: 1065-5131
ISSN オンライン: 1026-5511

Journal of Enhanced Heat Transfer

DOI: 10.1615/JEnhHeatTransf.v12.i3.50
pages 273-288

Turbulence Statistics in a Fully Developed Rotating Pipe Flow

Amir-Ali Feiz
Université de Marne-La-Vallée, Laboratoire d'Etude des Transferts d'Energie, et de Matière (LETEM), Champs sur Marne—77454 Marne-la-Vallée, Cedex 2, France
Miryem Ould-Rouis
Université de Marne-La-Vallée, Laboratoire d'Etude des Transferts d'Energie, et de Matière (LETEM), Champs sur Marne—77454 Marne-la-Vallée, Cedex 2, France
Guy Lauriat
Université Paris-Est, Marne la Vallée 5 Boulevard Descartes, Cité Descartes, Champs sur Marne, 77454 Marne la Vallée, Cedex 02

要約

This paper presents Direct Numerical Simulations (DNS) of fully developed turbulent flows in axially rotating pipes. The study is aimed at investigation of the effects of the Reynolds number and of the rotation number on turbulent flow characteristics. The mean velocity profiles and the statistics are compared to numerical and experimental data available in the literature, and reasonably good agreement is obtained. In particular, the results show that the axial velocity profile gradually approaches a laminar shape when increasing the rotation rate, due to the stability effect caused by the centrifugal force. Consequently, the friction factor decreases. To have a better understanding of the behavior of this kind of complex flows and to investigate the effects of higher Reynolds numbers, we have also carried out Large Eddy Simulations (LES).