High-order projection-based upwind method for simulation of transitional turbulent flows
Fuente:
arXiv
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Preprint |
| Published: |
2024
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866914911385288704 |
|---|---|
| author | Lederer, Philip L. Mooslechner, Xaver Schöberl, Joachim |
| author_facet | Lederer, Philip L. Mooslechner, Xaver Schöberl, Joachim |
| contents | We present a scalable, high-order implicit large-eddy simulation (ILES) approach for incompressible transitional flows. This method employs the mass-conserving mixed stress (MCS) method for discretizing the Navier-Stokes equations. The MCS method's low dissipation characteristics, combined with the introduced operator-splitting solution technique, result in a high-order solver optimized for efficient and parallel computation of under-resolved turbulent flows. We further enhance the inherent capabilities of the ILES model by incorporating high-order upwind fluxes and are examining its approximation behaviour in transitional aerodynamic flow problems. In this study, we use flows over the Eppler 387 airfoil at Reynolds numbers up to $3 \cdot 10^5$ as benchmarks for our simulations. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2408_06698 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | High-order projection-based upwind method for simulation of transitional turbulent flows Lederer, Philip L. Mooslechner, Xaver Schöberl, Joachim Computational Engineering, Finance, and Science We present a scalable, high-order implicit large-eddy simulation (ILES) approach for incompressible transitional flows. This method employs the mass-conserving mixed stress (MCS) method for discretizing the Navier-Stokes equations. The MCS method's low dissipation characteristics, combined with the introduced operator-splitting solution technique, result in a high-order solver optimized for efficient and parallel computation of under-resolved turbulent flows. We further enhance the inherent capabilities of the ILES model by incorporating high-order upwind fluxes and are examining its approximation behaviour in transitional aerodynamic flow problems. In this study, we use flows over the Eppler 387 airfoil at Reynolds numbers up to $3 \cdot 10^5$ as benchmarks for our simulations. |
| title | High-order projection-based upwind method for simulation of transitional turbulent flows |
| topic | Computational Engineering, Finance, and Science |
| url | https://arxiv.org/abs/2408.06698 |