On the Use of Nonlinearly Stable Flux Reconstruction for Implicitly Filtered Large Eddy Simulation
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Bibliographic record
Abstract
View Video Presentation: https://doi.org/10.2514/6.2023-1224.vid The performance of the nonlinearly stable flux reconstruction (NSFR) schemes for the implicitly filtered large eddy simulation (iLES) of viscous shock-free turbulent flows has been assessed through under-resolved simulations of the viscous Taylor-Green vortex problem. It is demonstrated that the flux reconstruction correction parameter can be seen as a way to tune the implicit filtering of the NSFR scheme on coarse grids. Furthermore, it is shown that the resolved turbulent kinetic energy dissipation can be improved by adding tailored Riemann solver dissipation and an explicit sub-grid scale model to the NSFR schemes.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it