Technology for Supercomputer Simulation of Turbulent Flows in the Good New Days of Exascale Computing


  • Andrey V. Gorobets Keldysh Institute of Applied Mathematics, Russian Academy of Sciences
  • Alexey P. Duben Keldysh Institute of Applied Mathematics, Russian Academy of Sciences



computational fluid dynamics, turbulent flows, scale-resolving simulation, hybrid RANS-LES approach, CPU GPU, MPI OpenMP OpenCL


A technology for scale-resolving simulations of turbulent flows in the problems of aerodynamics and aeroacoustics is presented. It is based on the higher accuracy numerical schemes on unstructured mixed-element meshes and latest non-zonal hybrid approaches combining Reynoldsaveraged Navier – Stokes (RANS) and Large eddy simulation (LES) methods for turbulence modeling. It targets a wide range of high performance computing (HPC) systems, from a compute server or small cluster to an exascale supercomputer. The advantages of the key components of the technology are summarized. These key components are a hybrid RANS-LES turbulence modeling method, a numerical scheme for discretization in space, a parallel algorithm, and a portable software implementation for modern hybrid systems with extra massive parallelism. Examples of our simulations are given and parallel performance on various HPC systems is presented.


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How to Cite

Gorobets, A. V., & Duben, A. P. (2022). Technology for Supercomputer Simulation of Turbulent Flows in the Good New Days of Exascale Computing. Supercomputing Frontiers and Innovations, 8(4), 4–10.