Higher-order Unstructured Finite Volume Methods for Turbulent Aerodynamic Flows
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Bibliographic record
Abstract
In this paper, we describe the steps for constructing a higher-order finite volume unstructured solver for turbulent aerodynamic flows. These include the strategies for curving the interior faces of a mesh, solution reconstruction on highly anisotropic meshes with curvature, robust implementation and coupling of a RANS turbulence model and efficient solution method. The solutions are verified by one of the verification test cases of the NASA Langley turbulence model resource. Also, the solutions and convergence behaviors are presented for fully turbulent flow over a flat plate and subsonic flow over the NACA 0012 airfoil. Our results show fast and efficient convergence for second-, thirdand fourthorder solutions for the flat plate test case and secondand third-order solutions for the airfoil. In addition, the accuracy of the solution is reasonable on meshes with sufficient degrees of freedom in which the turbulence features are captured appropriately.
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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 | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 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