Validation of unsteady CFD in a confined row of cylinders

  • Brandon Wilson
  • , Jeff Harris
  • , Barton L. Smith
  • , Robert Spall

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    4 Scopus citations

    Abstract

    A validation study for two CFD models of the timevarying flow through a confined bank of cylinders is presented. The facility mimics the lower plenum of a high temperature reactor and is arranged with the cylinders on equilateral triangles with pitch to diameter ratio of 1.7. Time-resolved Particle Image Velocimetry (PIV) measurement coupled with pressure measurements along the facilities walls are compared to both the Unsteady Reynolds Averaged Navier Stokes (URANS) kωw model and the Detached Eddy Simulation (DES) models. Spatial (i.e. timeaveraged bulk velocity and pressure losses and local velocity distributions) and temporal (i.e. dominant frequencies and correlations) validation parameters on both the local and global scale are used for validation. It is found the CFD models accurately predict frequencies present in the pressure along the walls next to the cylinders in the first and the last cylinder, yet predicts other dominant frequencies in the remaining cylinders that are not found in the experiment. The temporal behavior of the DES was generally far superior to that of the URANS model.

    Original languageEnglish (US)
    Title of host publicationASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting Collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels, FEDSM2010
    Pages2265-2278
    Number of pages14
    EditionPARTS A, B AND C
    DOIs
    StatePublished - 2010
    EventASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting, FEDSM 2010 Collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels - Montreal, QC, Canada
    Duration: Aug 1 2010Aug 5 2010

    Publication series

    NameAmerican Society of Mechanical Engineers, Fluids Engineering Division (Publication) FEDSM
    NumberPARTS A, B AND C
    Volume1
    ISSN (Print)0888-8116

    Other

    OtherASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting, FEDSM 2010 Collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels
    Country/TerritoryCanada
    CityMontreal, QC
    Period8/1/108/5/10

    All Science Journal Classification (ASJC) codes

    • Mechanical Engineering

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