Large Eddy Simulation Study on the Application of a Whisker Structure to the Lip of a Trailing Edge Cutback
Bibliographic record
Abstract
Abstract In this study, the whisker structure of a harbor seal is applied to the lip of a trailing edge cutback of gas turbine airfoils. A total of four whisker cases are studied as well as a prototype case and an elliptic lip case. Large Eddy Simulation is used to simulate the unsteady flow of the cutback cooling unit. The results show that the elliptic and whisker lip can significantly improve film cooling effectiveness. In particular, whisker Case-3 can achieve the best results at the medium blowing ratio. The analysis shows that the whiskered lip structure weakens the strength of the vortex shed from the lip. The decrease in the strength of the lip vortex weakens the effect of the lip vortex in entraining the mainstream high-temperature gas to the cutback surface and entraining the coolant away from the cutback surface. Therefore, the coverage effect of the coolant on the cutback surface is improved. Whisker Lip Case-3 has the separation shear layer converge from the crest to the trough, significantly reducing the film mixing process in the crest area. However, the mixing in the trough area does not increase significantly, which improves the overall film cooling effectiveness.
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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 | 0.000 |
| 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) | 0.000 | 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".