On the Simulation of Complex Gusts at Low Reynolds Numbers
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Bibliographic record
Abstract
Two specific gust forms were simulated using Computational Fluid Dynamics. Simultaneously a flat-plate model was manipulated in a water-tunnel facility to generate equivalent effective incidence and velocity variations at the leading edge. By comparing the two results, the potential of simulating a gust with equivalent model motions was thus undertaken. A first-order analysis using classical unsteady theory predicted that a gust was equivalent to a moving model experiencing the same velocities so long as the reduced frequency was low. However, direct force measurements were found to contradict this result from classical analysis showing large deviations in the total measured forces. Further measurements using Particle Image Velocimetry revealed that leading-edge vortex (LEV) growth on a moving model was equivalent to LEV growth from a gust for an equivalent effective leading-edge incidence and velocity. Despite this similarity in the LEV growth, both the added mass effects of an accelerating model, as well as the convective speed of the gust, were found to contribute large discrepancies between the gust simulation techniques.
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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 | 0.000 |
| 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) | 0.001 | 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