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HPC Requirements of High-Fidelity Flow Simulations for Aerodynamic Applications

Probst, Axel and Knopp, Tobias and Grabe, Cornelia and Jägersküpper, Jens (2020) HPC Requirements of High-Fidelity Flow Simulations for Aerodynamic Applications. In: Euro-Par 2019: Parallel Processing Workshops. Euro-Par 2019. Lecture Notes in Computer Science Lecture Notes in Computer Science, 11997. Springer Nature Switzerland AG 2020. pp. 375-387. doi: 10.1007/978-3-030-48340-1_29. ISBN 978-3-030-48339-5. ISSN 0302-9743.

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Official URL: https://doi.org/10.1007/978-3-030-48340-1_29

Abstract

This paper relates the computational demand of turbulence-resolving flow simulations for aircraft aerodynamics to the parallel scalability of the DLR flow solvers TAU and THETA, as well as the new CODA solver optimized for many-core HPC systems. Based on existing lower-fidelity simulations, the computational requirements for wall-resolved LES are first estimated for single aircraft components at wind-tunnel scale. It is shown that such simulations at reduced Reynolds numbers would be realizable within days to weeks with the current methods, if the largest available HPC clusters with more than 100,000 cores were used. However, an extrapolation to the HPC requirements of LES for a full 3D wing of an aircraft at flight Reynolds numbers highlights the urgent need for larger HPC resources and adapted parallel code designs, as well as more efficient numerical algorithms and physical models.

Item URL in elib:https://elib.dlr.de/136427/
Document Type:Contribution to a Collection
Additional Information:Print ISBN 978-3-030-48339-5 Online ISBN 978-3-030-48340-1 Series Print ISSN 0302-9743 Series Online ISSN 1611-3349
Title:HPC Requirements of High-Fidelity Flow Simulations for Aerodynamic Applications
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Probst, AxelAxel.Probst (at) dlr.deUNSPECIFIED
Knopp, TobiasTobias.Knopp (at) dlr.deUNSPECIFIED
Grabe, Corneliacornelia.grabe (at) dlr.dehttps://orcid.org/0000-0001-6028-2757
Jägersküpper, JensJens.Jaegerskuepper (at) dlr.deUNSPECIFIED
Date:29 May 2020
Journal or Publication Title:Euro-Par 2019: Parallel Processing Workshops. Euro-Par 2019. Lecture Notes in Computer Science
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
Volume:11997
DOI :10.1007/978-3-030-48340-1_29
Page Range:pp. 375-387
Editors:
EditorsEmailEditor's ORCID iD
Schwardmann, U.UNSPECIFIEDUNSPECIFIED
Boehme, C.UNSPECIFIEDUNSPECIFIED
Heras, D. B.UNSPECIFIEDUNSPECIFIED
Cardellini, V.UNSPECIFIEDUNSPECIFIED
Jeannot, E.UNSPECIFIEDUNSPECIFIED
Salis, A.UNSPECIFIEDUNSPECIFIED
Schifanella, C.UNSPECIFIEDUNSPECIFIED
Manumachu, R. R.UNSPECIFIEDUNSPECIFIED
Schwamborn, DieterDieter.Schwamborn@dlr.deUNSPECIFIED
Ricci, L.UNSPECIFIEDUNSPECIFIED
Publisher:Springer Nature Switzerland AG 2020
Series Name:Lecture Notes in Computer Science
ISSN:0302-9743
ISBN:978-3-030-48339-5
Status:Published
Keywords:High-Performance Computing, Large-Eddy Simulation, Aircraft aerodynamics, TAU, THETA, CODA
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - VicToria (old), L - Simulation and Validation (old)
Location: Göttingen
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > CASE, GO
Institute for Aerodynamics and Flow Technology > CASE, BS
Deposited By: Probst, Axel
Deposited On:12 Oct 2020 11:57
Last Modified:12 Oct 2020 12:07

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