Effect of Wavy Wall on the Stability of Conical Hypersonic Boundary Layer at Small Angle of Attack
In order to obtain a high lift-drag ratio, hypersonic vehicles usually fly with a certain angle of attack. As a potential means to delay hypersonic boundary layer transition at 0° angle of attack, it is not clear how wavy wall affect the deve-lopment of instability waves with angles of attack. In or...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | zho |
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China Astronautic Publishing CO., LTD. ; Editorial Office of Physics of Gases
2024-03-01
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| Series: | 气体物理 |
| Subjects: | |
| Online Access: | http://qtwl.xml-journal.net/cn/article/doi/10.19527/j.cnki.2096-1642.1078 |
| _version_ | 1797215084502581248 |
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| author | Chengjian ZHANG Yuteng GUI Xueliang LI Jiangyi CHENG Jie WU |
| author_facet | Chengjian ZHANG Yuteng GUI Xueliang LI Jiangyi CHENG Jie WU |
| author_sort | Chengjian ZHANG |
| collection | DOAJ |
| description | In order to obtain a high lift-drag ratio, hypersonic vehicles usually fly with a certain angle of attack. As a potential means to delay hypersonic boundary layer transition at 0° angle of attack, it is not clear how wavy wall affect the deve-lopment of instability waves with angles of attack. In order to study the influence of wavy wall on the development of instability waves in hypersonic boundary layer at small angle of attack, the stability of boundary layer was studied by adopting high-speed infrared camera and high-frequency pressure sensor (PCB) in Mach 6 Ludwieg tube wind tunnel. The development of instability waves along different azimuths and flow directions was analyzed. The experimental results show that the instability waves leading transition at 1° angle of attack are the second-mode waves. Under the condition of 1° angle of attack, the wavy wall has no delay effect on transition at 45° azimuth angle, but has a promotion effect at 90°, 135° and 180° azimuth angles. |
| first_indexed | 2024-04-24T11:24:27Z |
| format | Article |
| id | doaj.art-48077ee020f547da945509d5fd27a0cf |
| institution | Directory Open Access Journal |
| issn | 2096-1642 |
| language | zho |
| last_indexed | 2024-04-24T11:24:27Z |
| publishDate | 2024-03-01 |
| publisher | China Astronautic Publishing CO., LTD. ; Editorial Office of Physics of Gases |
| record_format | Article |
| series | 气体物理 |
| spelling | doaj.art-48077ee020f547da945509d5fd27a0cf2024-04-11T03:05:04ZzhoChina Astronautic Publishing CO., LTD. ; Editorial Office of Physics of Gases气体物理2096-16422024-03-0192668010.19527/j.cnki.2096-1642.1078qtwl-9-2-66Effect of Wavy Wall on the Stability of Conical Hypersonic Boundary Layer at Small Angle of AttackChengjian ZHANG0Yuteng GUI1Xueliang LI2Jiangyi CHENG3Jie WU4School of Aerospace Engineering, Huazhong University of Science and Technology, Wuhan 430074, ChinaSchool of Aerospace Engineering, Huazhong University of Science and Technology, Wuhan 430074, ChinaSchool of Aerospace Engineering, Huazhong University of Science and Technology, Wuhan 430074, ChinaSchool of Aerospace Engineering, Huazhong University of Science and Technology, Wuhan 430074, ChinaSchool of Aerospace Engineering, Huazhong University of Science and Technology, Wuhan 430074, ChinaIn order to obtain a high lift-drag ratio, hypersonic vehicles usually fly with a certain angle of attack. As a potential means to delay hypersonic boundary layer transition at 0° angle of attack, it is not clear how wavy wall affect the deve-lopment of instability waves with angles of attack. In order to study the influence of wavy wall on the development of instability waves in hypersonic boundary layer at small angle of attack, the stability of boundary layer was studied by adopting high-speed infrared camera and high-frequency pressure sensor (PCB) in Mach 6 Ludwieg tube wind tunnel. The development of instability waves along different azimuths and flow directions was analyzed. The experimental results show that the instability waves leading transition at 1° angle of attack are the second-mode waves. Under the condition of 1° angle of attack, the wavy wall has no delay effect on transition at 45° azimuth angle, but has a promotion effect at 90°, 135° and 180° azimuth angles.http://qtwl.xml-journal.net/cn/article/doi/10.19527/j.cnki.2096-1642.1078hypersonic speedboundary layer stabilitysmall angle of attackwavy walltransition |
| spellingShingle | Chengjian ZHANG Yuteng GUI Xueliang LI Jiangyi CHENG Jie WU Effect of Wavy Wall on the Stability of Conical Hypersonic Boundary Layer at Small Angle of Attack 气体物理 hypersonic speed boundary layer stability small angle of attack wavy wall transition |
| title | Effect of Wavy Wall on the Stability of Conical Hypersonic Boundary Layer at Small Angle of Attack |
| title_full | Effect of Wavy Wall on the Stability of Conical Hypersonic Boundary Layer at Small Angle of Attack |
| title_fullStr | Effect of Wavy Wall on the Stability of Conical Hypersonic Boundary Layer at Small Angle of Attack |
| title_full_unstemmed | Effect of Wavy Wall on the Stability of Conical Hypersonic Boundary Layer at Small Angle of Attack |
| title_short | Effect of Wavy Wall on the Stability of Conical Hypersonic Boundary Layer at Small Angle of Attack |
| title_sort | effect of wavy wall on the stability of conical hypersonic boundary layer at small angle of attack |
| topic | hypersonic speed boundary layer stability small angle of attack wavy wall transition |
| url | http://qtwl.xml-journal.net/cn/article/doi/10.19527/j.cnki.2096-1642.1078 |
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