Investigation of the Large Scale Flow Structures in Dual Planar Attaching Jets
Bibliographic record
Abstract
An experimental investigation was performed to characterize the large scale structures present in turbulent offset attaching jets with a lower velocity co-flowing jet. The results showed that the nature of the structures present in the jets changed as the ratio of the lower jet velocity to the upper jet velocity changed. When the lower jet velocity was small, the lower jet was entrained into the upper jet before it attached to the surface. In these cases, the structures that developed in the inner shear layer were most prominent near the reattachment point, before a lower frequency motion that may be related to the outer shear layer of the jet became dominant. When the lower jet velocity was higher, there was a significant periodic motion in the near field that seemed to be associated with a flapping of the inner shear layer of the upper jet. This significantly increased the vertical fluctuating velocity in this region, but the fluctuations seemed to be damped as the inner shear layer approached the wall and did not have a large impact on the heat transfer or fluctuating pressure in this region where the upper jet interacted with the wall.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| 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 | 0.001 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.001 | 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 source (direct Gemma or distilled Codex), 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".