Aerodynamic Characteristics of Re-Entry Capsules with Hyperbolic Contours
For most re-entry capsules, the shape of the forebody of the capsule is designed based on the blunted nose cone. A similar shape can be created using a hyperboloid of revolution that can control the nose bluntness and the half angle of the cone easily. In this study, the hypersonic aerodynamic chara...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-10-01
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| Series: | Aerospace |
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| Online Access: | https://www.mdpi.com/2226-4310/8/10/287 |
| _version_ | 1797515625749282816 |
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| author | Hirotaka Otsu |
| author_facet | Hirotaka Otsu |
| author_sort | Hirotaka Otsu |
| collection | DOAJ |
| description | For most re-entry capsules, the shape of the forebody of the capsule is designed based on the blunted nose cone. A similar shape can be created using a hyperboloid of revolution that can control the nose bluntness and the half angle of the cone easily. In this study, the hypersonic aerodynamic characteristics of re-entry capsules designed with hyperbolic contours were investigated using the CFD code, FaSTAR, developed by Japan Aerospace Exploration Agency (JAXA). The CFD results showed that, using the hyperbolic contours, the drag and lift coefficients can be increased compared to those for the Hayabusa re-entry capsule without changing the shape of the capsule drastically. This suggests that shape design based on the hyperbolic contours can improve the aerodynamic characteristics of re-entry capsules. |
| first_indexed | 2024-03-10T06:48:14Z |
| format | Article |
| id | doaj.art-74639942279c4e40892e32fa028a5905 |
| institution | Directory Open Access Journal |
| issn | 2226-4310 |
| language | English |
| last_indexed | 2024-03-10T06:48:14Z |
| publishDate | 2021-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Aerospace |
| spelling | doaj.art-74639942279c4e40892e32fa028a59052023-11-22T17:03:36ZengMDPI AGAerospace2226-43102021-10-0181028710.3390/aerospace8100287Aerodynamic Characteristics of Re-Entry Capsules with Hyperbolic ContoursHirotaka Otsu0Faculty of Advanced Science and Technology, Ryukoku University, Kyoto 612-8577, JapanFor most re-entry capsules, the shape of the forebody of the capsule is designed based on the blunted nose cone. A similar shape can be created using a hyperboloid of revolution that can control the nose bluntness and the half angle of the cone easily. In this study, the hypersonic aerodynamic characteristics of re-entry capsules designed with hyperbolic contours were investigated using the CFD code, FaSTAR, developed by Japan Aerospace Exploration Agency (JAXA). The CFD results showed that, using the hyperbolic contours, the drag and lift coefficients can be increased compared to those for the Hayabusa re-entry capsule without changing the shape of the capsule drastically. This suggests that shape design based on the hyperbolic contours can improve the aerodynamic characteristics of re-entry capsules.https://www.mdpi.com/2226-4310/8/10/287re-entry capsulehyperbolic contourshypersonic flow |
| spellingShingle | Hirotaka Otsu Aerodynamic Characteristics of Re-Entry Capsules with Hyperbolic Contours Aerospace re-entry capsule hyperbolic contours hypersonic flow |
| title | Aerodynamic Characteristics of Re-Entry Capsules with Hyperbolic Contours |
| title_full | Aerodynamic Characteristics of Re-Entry Capsules with Hyperbolic Contours |
| title_fullStr | Aerodynamic Characteristics of Re-Entry Capsules with Hyperbolic Contours |
| title_full_unstemmed | Aerodynamic Characteristics of Re-Entry Capsules with Hyperbolic Contours |
| title_short | Aerodynamic Characteristics of Re-Entry Capsules with Hyperbolic Contours |
| title_sort | aerodynamic characteristics of re entry capsules with hyperbolic contours |
| topic | re-entry capsule hyperbolic contours hypersonic flow |
| url | https://www.mdpi.com/2226-4310/8/10/287 |
| work_keys_str_mv | AT hirotakaotsu aerodynamiccharacteristicsofreentrycapsuleswithhyperboliccontours |