| Autor: |
Hesen YANG, Hua LIANG, Shanguang GUO, Yanhao LUO, Mengxiao TANG, Chuanbiao ZHANG, Yun WU, Yinghong LI |
| Rok vydání: |
2022 |
| Předmět: |
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| Zdroj: |
Plasma Science and Technology. 24:095503 |
| ISSN: |
1009-0630 |
| Popis: |
Effective control of hypersonic transition is essential. In order to avoid affecting the structural profile of the aircraft, as well as reducing power consumption and electromagnetic interference, a low-frequency surface arc plasma disturbance experiment to promote hypersonic transition was carried out in the Φ0.25 m double-throat Ludwieg tube wind tunnel at Huazhong University of Science and Technology. Contacting printed circuit board sensors and non-contact focused laser differential interferometry testing technology were used in combination. Experimental results showed that the low-frequency surface arc plasma actuation had obvious stimulation effects on the second-mode unstable wave and could promote boundary layer transition by changing the spectral characteristics of the second-mode unstable wave. At the same time, the plasma actuation could promote energy exchange between the second-mode unstable wave and other unstable waves. Finally, the corresponding control mechanism is discussed. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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