Wall-modeled LES of the CREATE compressor with labyrinths, designed by Safran Aircraft Engines. Simulation performed by ONERA.
A hybrid curvilinear/Cartesian mesh with 1.46 billion cells is used to simulate the turbulent compressible flow in the 3.5 stage high-pressure CREATE compressor. The channel is discretized with structured curvilinear grids, whereas the labyrinth is handled by Cartesian meshes and immersed boundary method (IBM) (10.1016/j.jcp.2021.110240).
The simulation is performed on 656 Intel Broadwell cores and requires 58,000 CPU hours (less than 4 days) to compute a full 360° revolution.
Post-processing and flow images are made with Cassiopée ( https://cassiopee.onera.fr/ ).
The Fast solver ( https://fast.onera.fr/) is used to run the LES simulation.
Author: Ivan Mary ( ONERA/DAAA, https://www.onera.fr/en/daaa )
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