G1-1-3 Study on the turbulence measurement of a supersonic micro jet using MTV
Bibliographic record
Abstract
The molecular tagging velocimetry (MTV) is applied to measure the velocity fluctuation in a supersonic micro jet issuing from the two-dimensional Laval nozzle whose height is 500μm at the exit. This velocimetry uses the forth harmonic of a Nd:YAG laser (266nm) as a light source to excite the acetone molecules seeded in the flow, and fluorescence images are captured by a CCD camera 300ns after the laser illumination. The distribution of root-mean-square (RMS) of velocity fluctuation is obtained from these images. The distribution represents well the characteristics of the turbulent micro jet although unreasonable RMS values due to low fluorescence intensity are recognized around the jet. The distribution of single-time two-point spatial correlations is also obtained from the measured velocity fluctuations and this distribution reveals that the micro jet fluctuates in a flapping mode.
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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 | 0.000 |
| 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) | 0.001 | 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".