Performance of high-order implicit large eddy simulations

Konstantinos Ritos, Ioannis W. Kokkinakis, Dimitris Drikakis

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

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 1536 and 6144 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
Volume173
DOIs
Publication statusPublished - 15 Sep 2018

Keywords

  • High-Order methods
  • iLES
  • Parallel computing
  • Turbulent flows

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