Unsteady Flows Past Oscillating Airfoils at Low Reynolds Numbers
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Bibliographic record
Abstract
This paper presents the analysis of unsteady flows past oscillating airfoils at low Reynolds numbers (between 400 and 6000) for which there are no previously known solutions. The present solutions are obtained with an efficient numerical method developed by the authors, which is second order accurate in time and space. Solutions are presented for the unsteady aerodynamic coefficients (unsteady lift and drag coefficients and lift-to-drag ratio) of the airfoils executing pitching oscillations at low Reynolds numbers. The paper presents also a study of the unsteady flow separation on the upper surface of the oscillating airfoil at low Reynolds numbers. The influence of various flow parameters, such as the Reynolds number and the amplitude and frequency of the pitching oscillations, on the unsteady aerodynamic coefficients and on the flow separation is also studied.
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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) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.001 | 0.001 |
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