Cold flow field and propulsive performance of a micro Laval nozzle
Why this work is in the frame
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Bibliographic record
Abstract
To study the propulsive performance of the supersonic micro Laval nozzle, the 2D and 3D models were presented to simulate the nozzle flow, which were based on the continuum assumption with no-slip boundary conditions. By analyzing the numerical results, the criterion for micro-nozzle design was provided with consideration of nozzle geometry and its working conditions. As a result, the 20° nozzle performs the best over the full range. With the comparison of 2D and 3D numerical results, the rule for determination of the etch depth of 2D micro-nozzle was recommended. The result shows that, the micro-nozzle with the ratio of the etch depth to the throat width in excess of 10, has a good 2D characteristic.
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