Numerical Study on the Aerodynamic Heating Characteristics of the Cantilevered Injection System for Oblique Detonation Engine Inlets
This paper investigates the flowfield patterns and distributions of surface heat flux of the cantilevered injection system for oblique detonation engine inlets. Three-dimensional complex shock wave/boundary layer interaction and shock wave/shock wave interaction between injectors are studied by solv...
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MDPI AG
2023-10-01
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| Series: | Aerospace |
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| Online Access: | https://www.mdpi.com/2226-4310/10/10/897 |
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| author | Fan Yang Mingyue Lin Zongmin Hu Guilai Han |
| author_facet | Fan Yang Mingyue Lin Zongmin Hu Guilai Han |
| author_sort | Fan Yang |
| collection | DOAJ |
| description | This paper investigates the flowfield patterns and distributions of surface heat flux of the cantilevered injection system for oblique detonation engine inlets. Three-dimensional complex shock wave/boundary layer interaction and shock wave/shock wave interaction between injectors are studied by solving Navier–Stokes equations under laminar flow conditions. The results indicate that there are three possible positions of localized peak heat flux, i.e., the leading edge of the injector near the bottom, the inlet wall surface below the injector, and the downstream of the injector sidewall. All the regions of high heat flux are related to flow reattachment or stagnation. Three types of flow patterns are observed along the inlet surface, i.e., partial separation, completely regular separation, and completely nonregular separation, resulting in increasingly complex distributions of heat flux. The localized peak heat flux which appears at the leading edge and the sidewalls of the injectors can reach values dozens of times higher than the undisturbed region within the interaction region. |
| first_indexed | 2024-03-10T21:31:22Z |
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| id | doaj.art-80558a06ac1f4d0d804e29e5e864da2f |
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| issn | 2226-4310 |
| language | English |
| last_indexed | 2024-03-10T21:31:22Z |
| publishDate | 2023-10-01 |
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| series | Aerospace |
| spelling | doaj.art-80558a06ac1f4d0d804e29e5e864da2f2023-11-19T15:17:39ZengMDPI AGAerospace2226-43102023-10-01101089710.3390/aerospace10100897Numerical Study on the Aerodynamic Heating Characteristics of the Cantilevered Injection System for Oblique Detonation Engine InletsFan Yang0Mingyue Lin1Zongmin Hu2Guilai Han3State Key Laboratory of High Temperature Gas Dynamics, Institute of Mechanics, Chinese Academy of Sciences (CAS), Beijing 100190, ChinaState Key Laboratory of High Temperature Gas Dynamics, Institute of Mechanics, Chinese Academy of Sciences (CAS), Beijing 100190, ChinaState Key Laboratory of High Temperature Gas Dynamics, Institute of Mechanics, Chinese Academy of Sciences (CAS), Beijing 100190, ChinaState Key Laboratory of High Temperature Gas Dynamics, Institute of Mechanics, Chinese Academy of Sciences (CAS), Beijing 100190, ChinaThis paper investigates the flowfield patterns and distributions of surface heat flux of the cantilevered injection system for oblique detonation engine inlets. Three-dimensional complex shock wave/boundary layer interaction and shock wave/shock wave interaction between injectors are studied by solving Navier–Stokes equations under laminar flow conditions. The results indicate that there are three possible positions of localized peak heat flux, i.e., the leading edge of the injector near the bottom, the inlet wall surface below the injector, and the downstream of the injector sidewall. All the regions of high heat flux are related to flow reattachment or stagnation. Three types of flow patterns are observed along the inlet surface, i.e., partial separation, completely regular separation, and completely nonregular separation, resulting in increasingly complex distributions of heat flux. The localized peak heat flux which appears at the leading edge and the sidewalls of the injectors can reach values dozens of times higher than the undisturbed region within the interaction region.https://www.mdpi.com/2226-4310/10/10/897oblique detonation enginecantilevered injectionlocalized high heat fluxboundary layer separationreattachment |
| spellingShingle | Fan Yang Mingyue Lin Zongmin Hu Guilai Han Numerical Study on the Aerodynamic Heating Characteristics of the Cantilevered Injection System for Oblique Detonation Engine Inlets Aerospace oblique detonation engine cantilevered injection localized high heat flux boundary layer separation reattachment |
| title | Numerical Study on the Aerodynamic Heating Characteristics of the Cantilevered Injection System for Oblique Detonation Engine Inlets |
| title_full | Numerical Study on the Aerodynamic Heating Characteristics of the Cantilevered Injection System for Oblique Detonation Engine Inlets |
| title_fullStr | Numerical Study on the Aerodynamic Heating Characteristics of the Cantilevered Injection System for Oblique Detonation Engine Inlets |
| title_full_unstemmed | Numerical Study on the Aerodynamic Heating Characteristics of the Cantilevered Injection System for Oblique Detonation Engine Inlets |
| title_short | Numerical Study on the Aerodynamic Heating Characteristics of the Cantilevered Injection System for Oblique Detonation Engine Inlets |
| title_sort | numerical study on the aerodynamic heating characteristics of the cantilevered injection system for oblique detonation engine inlets |
| topic | oblique detonation engine cantilevered injection localized high heat flux boundary layer separation reattachment |
| url | https://www.mdpi.com/2226-4310/10/10/897 |
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