Performance of high-order implicit large eddy simulations

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The performance of parallel implicit large eddy simulations (iLES) is investigated in conjunction with high-order weighted essentially non-oscillatory schemes up to 11th-order of accuracy. Simulations were performed for the Taylor Green Vortex and supersonic turbulent boundary layer flows on High Performance Computing (HPC) facilities. The present iLES are highly scalable achieving performance of approximately 93% and 68% on 1,536 and 6,144 cores, respectively, for simulations on a mesh of approximately 1.07 billion cells. The study also shows that high-order iLES attain accuracy similar to strict direct numerical simulation (DNS) but at a reduced computational cost.
Original languageEnglish
Pages (from-to)307-312
Number of pages6
JournalComputers and Fluids
Early online date31 Jan 2018
Publication statusPublished - 15 Sep 2018


  • iLES
  • high-order methods
  • turbulent flows
  • parallel computing


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