| Project/Area Number |
15K06611
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Aerospace engineering
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| Research Institution | Japan Aerospace EXploration Agency |
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Principal Investigator |
Ozawa Takashi 国立研究開発法人宇宙航空研究開発機構, 研究開発部門, 研究開発員 (70567544)
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| Co-Investigator(Kenkyū-buntansha) |
鈴木 俊之 国立研究開発法人宇宙航空研究開発機構, 研究開発部門, 主任研究開発員 (20392839)
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| Co-Investigator(Renkei-kenkyūsha) |
FUJITA KAZUHISA 国立研究開発法人宇宙航空研究開発機構, 研究開発部門, 研究領域主幹 (90281584)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2015: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Keywords | 航空宇宙工学 / 希薄風洞 / 数値解析 / 希薄気体力学 / DSMC / 極超音速流 |
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| Outline of Final Research Achievements |
For Mars atmospheric entry, it is crucial to improve understanding of aerodynamic characteristics in CO2 hypersonic rarefied gas flows. The 100-mm Hypersonic Rarefied Wind Tunnel (HRWT) at Japan Aerospace Exploration Agency has been extended to CO2 rarefied hypersonic flows by installing a new heater system. In this work, we first developed a pitot tube measurement system and a particle simulation code for CO2 condensing flows. According to particle simulation results for flows around pitot tubes, we have analyzed super-saturation region for CO2. Second, we have developed an integration scheme between HRWT measurements using pendulous models and particle simulations for the determination of CO2 surface accommodation coefficients and analyzed condensation effect on the accuracy of aerodynamic prediction for CO2 hypersonic rarefied flows.
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