Comparison of plasma development in a dielectric barrier discharge actuator operated using a constant and sinusoidal applied voltage
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Bibliographic record
Abstract
View Video Presentation: https://doi.org/10.2514/6.2023-1695.vid Simulations of the plasma created by a dielectric barrier discharge actuator operating in pure Nitrogen are presented. The plasma created by a constant applied potential of 1.2 kV is compared to that generated by a sinusoidal applied potential with the same peak to peak potential of 1.2 kV operating at 10 MHz for two cycles. For the constant applied potential the plasma continuously propagates downstream towards the grounded electrode and can be identified by both an area of increased ion density and a high ionization sheath region. For the sinusoidal applied potential the sheath region is observed only during the first half of the cycle and develops at a slower rate than for the instant applied potential case. Furthermore, in the sinusoidal case, the density of free electrons available for ionization in the sheath region is increased at the end of the first cycle, but decreased at the end of the second. The plasma for a sinusoidal applied potential extends further away from the dielectric surface when compared to a constant applied potential case but appears limited in downstream extent by the change in the surface charge developed by the sinusoidal case.
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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 | 0.001 |
| 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 |
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