Abstract
A numerical investigation of finite volume (FV) and discontinuous Galerkin (DG) finite element methods in the framework of the SU2 software is presented. The accuracy of different numerical variants is assessed with reference to the low Mach double vortex pairing flow problem, which has recently been proposed as a benchmark for studying the properties of structured and unstructured grid based methods with respect to turbulent-like vortices. The present study reveals that low-Mach corrections significantly improve the accuracy of second- and third-order, unstructured grid based schemes, at flow speeds in the incompressible limit. Furthermore, the 3rd-order DG method produces results similar to 11th-order accurate FV volume schemes.
Original language | English |
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Title of host publication | 2018 AIAA Aerospace Sciences Meeting |
Place of Publication | Reston, VA. |
Number of pages | 14 |
ISBN (Electronic) | 9781624105241 |
DOIs | |
Publication status | Published - 8 Jan 2018 |
Event | AIAA SciTech 2018 - Gaylord Palms, Kissimmee, United States Duration: 8 Jan 2018 → 12 Jan 2018 https://scitech.aiaa.org/Register/ |
Conference
Conference | AIAA SciTech 2018 |
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Country/Territory | United States |
City | Kissimmee |
Period | 8/01/18 → 12/01/18 |
Internet address |
Keywords
- discontinuous Galerkin method
- finite volume method
- SU2