Active Trailing-Edge Flap Control of Oscillating-Wing Tip Vortex
Bibliographic record
Abstract
The tip vortex generated by an oscillating NACA 0015 wing with a moveable trailing-edge flap was investigated at Re = 1.65 x 10 5 by using a miniature triple hot-wire probe. Both positive and negative flap deflections, actuated at different start times, were tested. The negative flap motion was found to be most effective in displacing the vortex position with earlier actuations leading to larger vertical vortex displacements. Negative flap deflections strengthened the vortex, moved the centroid further outboard, decreased the peak vorticity ζ peak , and increased the vortex size. The positive trailing-edge flap motion, however, resulted in a more concentrated tip vortex of reduced vortex strength Γ 0 located further inboard. The lift-induced drag was decreased (increased) for positive (negative) trailing-edge flap, compared to a baseline wing.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".