Direct numerical simulation of transitional flow in a staggered tube bundle

A series of Direct Numerical Simulations (DNS) of the flow through a staggered tube bundle has been performed over the range 1030 ≤ Rem ≤ 5572 to capture the flow transition that occurs at the matrix transition point of Rem ≈ 3000. The matrix transition is the point at which a second frequency becom...

Full description

Saved in:
Bibliographic Details
Published inPhysics of fluids (1994) Vol. 28; no. 2
Main Authors Linton, D., Thornber, B.
Format Journal Article
LanguageEnglish
Published Melville American Institute of Physics 01.02.2016
Subjects
Bundling
Computational fluid dynamics
Computer simulation
Cross flow
Cylinders
Direct numerical simulation
Fluid dynamics
Fluid flow
Physics
Reynolds number
Simulation
Three dimensional flow
Turbulent flow
Vortex shedding
Online AccessGet full text

Cover

More Information
Summary:A series of Direct Numerical Simulations (DNS) of the flow through a staggered tube bundle has been performed over the range 1030 ≤ Rem ≤ 5572 to capture the flow transition that occurs at the matrix transition point of Rem ≈ 3000. The matrix transition is the point at which a second frequency becomes prominent in tube bundles. To date, this is the highest published Reynolds number at which a DNS has been performed on cross-flow over a tube bundle. This study describes the flow behaviour in terms of: the mean flow field, Strouhal numbers, vortex shedding, 3-D flow features, and turbulence properties. These results support the hypothesis that the transition in the vortex shedding behaviour at Rem ≈ 3000 is similar to that which occurs in single cylinder flow at the equivalent Reynolds number. The visualisations presented also demonstrate the nature of the shedding mechanisms before and after the matrix transition point.
ISSN:1070-6631
1089-7666
DOI:10.1063/1.4942180