A Study of a Separated Turbulent Boundary Layer in Stalled-Airfoil-Type Flow Conditions
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
The experimental study of the turbulent boundary layer and its separation under external flow conditions similar to those found on the suction side of airfoils in trailing-edge post-stall conditions has been performed. The flow is characterized by a very narrow suction peak with a minimum pressure coefficient of -16 at a Reynolds numbers of 1.5×10 6 , based on an effective chord length of 2.5 m. Special care was taken to achieve a nearly twodimensional mean flow. Detailed boundary layer measurements were carried out with a PIV system and a two-sensor wall probe. They cover the region downstream of the suction peak where the boundary layer is subjected to a very strong adverse pressure gradient and has suffered from an abrupt transition from strong favorable to strong adverse pressure gradients. The experiments show that in spite of these severe conditions, the boundary layer is able to recover a state of equilibrium and maintain it up to the separation point. In the equilibrium zone, the mean velocity and all the measured Reynolds stress components share common self-similarity scales, namely δ and Ueδ*/δ. These similarity scales are not valid for the separated zone. These findings support the conclusion of Castillo and Wang (J. Fluids Eng., Vol. 126, 2004) that most nonequilibrium flows are actually able to reach a local equilibrium state.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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 it