Calculation of post-arc current in a Laval nozzle
Why this work is in the frame
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Bibliographic record
Abstract
The post-arc current and the critical RRRV were determined by the computer simulations for a Laval nozzle (or Frind &Rich nozzle). In order to investigate the thermal recovery characteristics after current zero, the simulation of steady-state arc of 1000(A) current, the simulation of transient arc generated by the current which decreases with the rate of i/d=27.0(A//spl mu/d) before current zero, and the simulation of hot- gas flow were carried out in the upstream pressure range of 0.6- 7.0(MPa) respectively. A commercial computational fluid dynamics (CFD) program "PHOENICS" was used for the simulations. The semi-experimental arc radiation model was adapted to consider the radiation energy transport and Prandtl's mixing length model was employed as the turbulence model. The electric field and the magnetic field were calculated with the same grid structure used for the simulation of the flow field. The results obtained by implementing a two-dimensional differential arc model into PHOENICS have been verified by comparison with the test results presented by the research group of GE Co. (General Electric Company).
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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