Effect of Various Cambered Airfoil Profiles to Wings with Leading Edge Tubercles in Transonic Flow
Bibliographic record
Abstract
View Video Presentation: https://doi.org/10.2514/6.2021-0468.vid The application of leading edge tubercles to subsonic airfoils has been shown to improve flow behaviour at transonic speeds. In particular an optimized tubercled shape represented by a power series function has been found to reduce transonic drag at low angles of attack when applied to a NACA 0012 airfoil. Strong indications of lift penalties along with the reduction in drag were noted for the airfoil. This paper examines the performance influences of power series tubercles applied to various cambered airfoil profiles. Results from CFD simulations, and insights into the flow behaviour are presented. It is found that the tubercle shape's influence on aerodynamic performance is dependent on the airfoil thickness and camber. Application of tubercles with cambered airfoils indicate improvement in aerodynamic efficiency of up to 6% compared to the straight leading edge wing.
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How this classification was reachedexpand
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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, 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".