Study of Supersonic Flows Interacting with DC Discharge Plasma on a Diamond Airfoil
Bibliographic record
Abstract
This paper describes the experimental results of the influence of the DC discharge plasma generated on the diamond airfoil in a Mach 1.41 airflow. The experiments were carried out in an indraft supersonic wind tunnel installed with the Laval nozzle. The discharge was generated between a pair of electrodes mounted on the airfoil surface. Current and voltage measurements indicated that the discharge became unstable at low power consumption. When the backpressure ratio of Pb / P0 is in the range of 0.1 to 0.13, it was possible to generate plasma with 79.5 W of discharge power at 0.019 s intervals. In the case of 0.23 < Pb / P0 < 0.26, the discharge period reduced to 0.013 s and the power consumption decreased to 50.7 W. From the visualization image of the flow field, the expansion wave from the entire plasma emission region was observed, and slight increase in the boundary layer thickness was seen at the downstream of the electrode. In order to detect the effects of the plasma on the supersonic airflow, a total pressure in the plasma discharge region was measured. It was suggested that the total pressure in the plasma discharge might be higher than without discharge but confirming of the reproducibility is necessary in the future investigation.
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How this classification was reachedexpand
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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, 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".