Experimental Study on the Influence of Gas Injection on Aerodynamic Heating
The gas injection effect is the main heat dissipation mechanism of ablative materials, which would significantly affect the thermal insulation characteristics of ablative thermal protection systems. Based on the shock tube wind tunnel, the experimental study on the influence of gas injection on down...
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| Format: | Article |
| Language: | zho |
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China Astronautic Publishing CO., LTD. ; Editorial Office of Physics of Gases
2024-11-01
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| Series: | 气体物理 |
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| Online Access: | http://qtwl.xml-journal.net/cn/article/doi/10.19527/j.cnki.2096-1642.1113 |
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| _version_ | 1850238544000319488 |
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| author | Hongjun ZHANG Haiqun LI Honglin KANG Jinling LUO |
| author_facet | Hongjun ZHANG Haiqun LI Honglin KANG Jinling LUO |
| author_sort | Hongjun ZHANG |
| collection | DOAJ |
| description | The gas injection effect is the main heat dissipation mechanism of ablative materials, which would significantly affect the thermal insulation characteristics of ablative thermal protection systems. Based on the shock tube wind tunnel, the experimental study on the influence of gas injection on downstream aero-heating was conducted. The influence of factors such as gas injection, mainstream Mach number, Reynolds number was obtained. Combined with numerical simulation results, the correlations of the influence of gas injection on aero-heating were obtained under laminar and turbulent boundary layer flow conditions. The cooling efficiency of gas injection for laminar boundary layer is remarkable. The maximum cooling efficiency for laminar boundary layer is close to 100% when the blowing ratio F=0.483%. The cooling efficiency would decrease sharply when the boundary layer transition occurs because of the strong mixing effect of turbulent boundary layer. The larger the specific heat capacity of cooling gas, the better the cooling effect. |
| format | Article |
| id | doaj-art-02f60d9e7abc4462b384f06cdce0dd84 |
| institution | OA Journals |
| issn | 2096-1642 |
| language | zho |
| publishDate | 2024-11-01 |
| publisher | China Astronautic Publishing CO., LTD. ; Editorial Office of Physics of Gases |
| record_format | Article |
| series | 气体物理 |
| spelling | doaj-art-02f60d9e7abc4462b384f06cdce0dd842025-08-20T02:01:25ZzhoChina Astronautic Publishing CO., LTD. ; Editorial Office of Physics of Gases气体物理2096-16422024-11-0196748210.19527/j.cnki.2096-1642.1113qtwl-9-6-74Experimental Study on the Influence of Gas Injection on Aerodynamic HeatingHongjun ZHANG0Haiqun LI1Honglin KANG2Jinling LUO3Beijing Aerospace Technology Institute, Beijing 100074, ChinaBeijing Aerospace Technology Institute, Beijing 100074, ChinaBeijing Aerospace Technology Institute, Beijing 100074, ChinaBeijing Aerospace Technology Institute, Beijing 100074, ChinaThe gas injection effect is the main heat dissipation mechanism of ablative materials, which would significantly affect the thermal insulation characteristics of ablative thermal protection systems. Based on the shock tube wind tunnel, the experimental study on the influence of gas injection on downstream aero-heating was conducted. The influence of factors such as gas injection, mainstream Mach number, Reynolds number was obtained. Combined with numerical simulation results, the correlations of the influence of gas injection on aero-heating were obtained under laminar and turbulent boundary layer flow conditions. The cooling efficiency of gas injection for laminar boundary layer is remarkable. The maximum cooling efficiency for laminar boundary layer is close to 100% when the blowing ratio F=0.483%. The cooling efficiency would decrease sharply when the boundary layer transition occurs because of the strong mixing effect of turbulent boundary layer. The larger the specific heat capacity of cooling gas, the better the cooling effect.http://qtwl.xml-journal.net/cn/article/doi/10.19527/j.cnki.2096-1642.1113gas injection effectaerodynamic heatingshock tubeheat flux measurement |
| spellingShingle | Hongjun ZHANG Haiqun LI Honglin KANG Jinling LUO Experimental Study on the Influence of Gas Injection on Aerodynamic Heating 气体物理 gas injection effect aerodynamic heating shock tube heat flux measurement |
| title | Experimental Study on the Influence of Gas Injection on Aerodynamic Heating |
| title_full | Experimental Study on the Influence of Gas Injection on Aerodynamic Heating |
| title_fullStr | Experimental Study on the Influence of Gas Injection on Aerodynamic Heating |
| title_full_unstemmed | Experimental Study on the Influence of Gas Injection on Aerodynamic Heating |
| title_short | Experimental Study on the Influence of Gas Injection on Aerodynamic Heating |
| title_sort | experimental study on the influence of gas injection on aerodynamic heating |
| topic | gas injection effect aerodynamic heating shock tube heat flux measurement |
| url | http://qtwl.xml-journal.net/cn/article/doi/10.19527/j.cnki.2096-1642.1113 |
| work_keys_str_mv | AT hongjunzhang experimentalstudyontheinfluenceofgasinjectiononaerodynamicheating AT haiqunli experimentalstudyontheinfluenceofgasinjectiononaerodynamicheating AT honglinkang experimentalstudyontheinfluenceofgasinjectiononaerodynamicheating AT jinlingluo experimentalstudyontheinfluenceofgasinjectiononaerodynamicheating |