EFFECTS OF TAYLOR-GORTLER VORTICES ON NEAR-WALL COHERENT STRUCTURES
Bibliographic record
Abstract
In this paper, direct numerical simulations (DNS) have been performed to investigate the superimposition and modulation effects of Taylor-Gortler (TG) vortices on near-wall coherent structures in the context of streamwise-rotating turbulent channel flow. The evolution and dynamic interaction of the TG vortices with near-wall streaks have been studied in both spectral and physical spaces. An interesting bimodal pattern is observed in the pre-multiplied energy spectra which effectively differentiates the characteristic length scales of near-wall streaks from those of TG vortices. In the physical space, it is discovered that the near-wall streaks are influenced by the superimposition effect of TG vortices, and vary quasi-periodically in the spanwise direction. It is also interesting to observe that with positive and negative superimposition effects of TG vortices, the intensity of streaks is enhanced and reduced, respectively, clearly revealing that TG vortices has an amplitude-modulation effect on the near-wall structures.
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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".