ASSESSMENT OF THE ACCURACY AND ROBUSTNESS OF DIFFERENT NUMERICAL METHODS IN WALL-BOUNDED FLOWS
Toosi S, Larsson J, Schlatter P (2024)
Publication Type: Conference contribution
Publication year: 2024
Publisher: Scipedia S.L.
Conference Proceedings Title: World Congress in Computational Mechanics and ECCOMAS Congress
Event location: Lisbon, PRT
DOI: 10.23967/eccomas.2024.273
Abstract
Different numerical methods are tested for their accuracy and robustness in high-fidelity simulation of wall-bounded turbulent flows, on a set of 126–216 grids ranging in resolution from direct numerical simulation (DNS) to coarse wall-resolved large eddy simulation(LES). Tested numerical methods include the finite-difference discretization using second-,fourth, sixth-, and mixed-order central schemes and the spectral-element method (SEM) using different polynomial orders of 5, 7, 9 and 11. The focus is entirely on the numerical method itself, and not the specific implementation (i.e., the code; in fact, the names of the codes used for these simulations is not revealed), with the assumption that the selected methods are representative of their class of methods. To reduce bias, results are first presented using anonymized labels. The numerical method corresponding to each label is revealed after the initial conclusions about accuracy on idealistic grids.
Authors with CRIS profile
Siavash Toosi
Lehrstuhl für Strömungsmechanik (LSTM)
Philipp Schlatter
Lehrstuhl für Strömungsmechanik (LSTM)
Involved external institutions
United States (USA) (US)How to cite
APA:
Toosi, S., Larsson, J., & Schlatter, P. (2024). ASSESSMENT OF THE ACCURACY AND ROBUSTNESS OF DIFFERENT NUMERICAL METHODS IN WALL-BOUNDED FLOWS. In World Congress in Computational Mechanics and ECCOMAS Congress. Lisbon, PRT: Scipedia S.L..
MLA:
Toosi, Siavash, Johan Larsson, and Philipp Schlatter. "ASSESSMENT OF THE ACCURACY AND ROBUSTNESS OF DIFFERENT NUMERICAL METHODS IN WALL-BOUNDED FLOWS." Proceedings of the 9th European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS 2024, Lisbon, PRT Scipedia S.L., 2024.
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