2009 Fiscal Year Final Research Report
Research on Aerodynamic Characteristics of Reentry Vehicle System with the Inflatable Decelerator
| Project/Area Number |
19760563
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Aerospace engineering
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| Research Institution | Shizuoka University |
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Principal Investigator |
OTSU Hirotaka Shizuoka University, 理工学部, 准教授 (20313934)
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| Project Period (FY) |
2007 – 2009
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| Keywords | インフレータブル構造体 / 再突入飛行体 / 高速空気力学 |
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| Research Abstract |
To evaluate the efficiency of the reentry vehicle system with the inflatable decelerator, we performed wind tunnel experiments and CFD analyses. The results from both wind tunnel experiments and CFD analyses indicate that the inflatable decelerator can produce a sufficient aerodynamic lift force and the lift-to-drag ratio by tilting the decelerator. The trajectory analyses with estimated aerodynamic characteristics were also performed to evaluate the efficiency of this system. The results suggest that the inflatable decelerator can reduce both the aerodynamic heating and the deceleration during the reentry flight. From both results we concluded that the reentry vehicle system with the inflatable system could be one of the most reliable candidates for the future reentry vehicle system.
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