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Author(s)

     Dongil Chang, Stavros Tavoularis

Title

     Unsteady numerical simulations of turbulence and coherent structures in axial flow near a narrow gap

Publication Name

     Journal of Fluids Engineering

Publication Type

     Journal
Publisher
     American Society of Mechanical Engineers
Place
     
Editor(s)
      Ugo Piomelli
Number
      3
School
     
Volume
      127
Chapter
     
Pages
      458-466
Other Publication Information
     
Publication Year
     2005
Abstract
     Axial flow in a rectangular channel containing a cylindrical rod has been simulated numerically by solving the unsteady Reynolds-averaged Navier–Stokes equations with a Reynolds stress model. The time- and phase-averaged mean velocity and turbulent stresses are in fair agreement with previous experimental results in a similar configuration. The study further documents the formation of quasi-periodic coherent structures in the form of vortex pairs and the important role that they play in transporting fluid across the gap region.
Keywords
     coherent structures, URANS, gap
Website
     http://www.asmedl.aip.org/Fluids
Paper Status
     Published
DOI / Publication ID
     



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