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Author(s)
     Dongil Chang, Stavros Tavoularis
Title
      Numerical simulation of turbulent flow in a 37-rod bundle
Publication Name
     Nuclear Engineering and Design
Publication Type
     Journal
Publisher
     Elsevier B.V.
Place
     
Editor(s)
      G. Lohnert
Number
     
School
     
Volume
      237
Chapter
     
Pages
      575-590
Other Publication Information
     
Publication Year
     2007
Abstract
      The unsteady Reynolds averaged Navier–Stokes equations, combined with a Reynolds stress model, were solved numerically to determine fully developed isothermal turbulent flow in a 60° sector of a 37-rod bundle. It was found that this flow contained large-scale coherent structures, which affected strongly the local velocity fluctuations, especially near the gaps between rods or between rods and the surrounding wall. The time-averaged mean velocity and Reynolds stresses were in good agreement with experimental results in a similar channel. Coherent velocity fluctuations at different locations throughout the entire rod bundle were strongly correlated with each other.
Keywords
     rod bundle, URANS, gap
Website
     http://www.elsevier.com
Paper Status
     Published
DOI / Publication ID
     



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