Spark resistance under high-speed gas flow in the oscillatory damped regime of discharge
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Bibliographic record
Abstract
Applying a high-speed gas flow is an effective method to exclude residual plasma and expedite the insulation recovery of high-power spark gaps and can extend their applications to higher-repetition fields. In this paper, the subject of interest is a spark gap repetitively working in a low-damping oscillatory regime of discharge. The influence of gas flow for performance regulation on spark resistance was investigated based on both electrical and optical diagnoses. A high-speed air flow ranging from 0 to 100 m/s was applied by a Laval nozzle, and a significant increase in the damping ratio of the discharge current, implying an increase in spark resistance, was observed with increasing speed of gas flow. According to the optical diagnosis results, the influence of gas flow on the spark channel had two main aspects: configuration and temperature. Although the electron temperature under gas flow showed a trend of slight increase, indicating an increase in the conductivity of the spark channel, the high-speed gas flow could greatly stretch and thin the discharge channel, which was the dominant factor and resulted in an increase in spark resistance.
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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)
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Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
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