Effects of turbulence intensity and integral length scale on an asymmetric airfoil at low Reynolds numbers
Bibliographic record
Abstract
In the thesis, the performance of an asymmetric, high-lift S1223 airfoil has been investigated at Reynolds numbers 55,000, 75,000, and 100,000. The airfoil was tested in a quasi-isotropic turbulent flow generated using orificed perforated plates. The independent effects of the turbulence intensity were examined at a constant integral length scale. The stall of the airfoil is delayed by increasing the turbulence intensity. The wake of the airfoil becomes narrower and the strength of the shedding vortices was reduced, which indicates a suppression of the boundary layer of the airfoil. The independent roles of integral length scale were examined at turbulence intensity of 4.1% and 9.5%. At Tu=4.1% with increasing the integral length scale, the stall of the airfoil is delayed, and wider wakes have been observed at the stall region. At Tu=9.5%, the effects of turbulence scale become subtle.
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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 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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".