Journal
COMPUTERS & FLUIDS
Volume 173, Issue -, Pages 307-312Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.compfluid.2018.01.030
Keywords
iLES; High-Order methods; Turbulent flows; Parallel computing
Funding
- EPSRC [EP/K000586/1]
- EPSRC through the UK Applied Aerodynamics Consortium Leadership Project [e529]
- EPSRC [EP/K000195/1, EP/K000586/1] Funding Source: UKRI
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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 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. (C) 2018 The Authors. Published by Elsevier Ltd.
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