Development of a DNS solver for compressible flows in generalized curvilinear coordinates

Development of a DNS solver for compressible flows in generalized curvilinear coordinates

Giulio Soldati, Alessandro Ceci, Sergio Pirozzoli

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Abstract. We present a solver for DNS of turbulent compressible flows over arbitrary shaped geometries. The code solves the compressible Navier-Stokes equations in a generalized curvilinear coordinates system, using high-order central finite-difference schemes combined with WENO reconstruction for shock-waves treatment. An innovative stabilization strategy for central schemes based on skew-symmetric-like splitting of convective derivatives is used. The code is oriented to modern HPC platforms thanks to MPI parallelization and the ability to run on GPU architectures. The robustness and accuracy of the present code is assessed both in the low-subsonic case and in the supersonic case. We show here the results of a turbulent curved channel flow and a turbulent supersonic compression ramp, which proved to be in excellent match with previous studies.

Generalized Curvilinear Coordinates, Shock-Wave/Boundary Layer Interaction, Turbulent Compression Ramp, Curved Channel Flow

Published online 11/1/2023, 4 pages
Copyright © 2023 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: Giulio Soldati, Alessandro Ceci, Sergio Pirozzoli, Development of a DNS solver for compressible flows in generalized curvilinear coordinates, Materials Research Proceedings, Vol. 37, pp 222-225, 2023


The article was published as article 48 of the book Aeronautics and Astronautics

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