삼각 Ballute이 부착된 발사체의 수치적 공력해석 연구Numerical Study on the Aerodynamic Behavior of a Projectile with a Triangular Ballute
- Other Titles
- Numerical Study on the Aerodynamic Behavior of a Projectile with a Triangular Ballute
- Authors
- 양영록; 정성기; 박지혁; 안성호; 김병수; 조태환
- Issue Date
- 2009
- Publisher
- 한국군사과학기술학회
- Keywords
- Aerocapture; Aerodynamic Decelerator; Ballute; CFD
- Citation
- 한국군사과학기술학회지, v.12, no.6, pp 808 - 814
- Pages
- 7
- Indexed
- KCI
- Journal Title
- 한국군사과학기술학회지
- Volume
- 12
- Number
- 6
- Start Page
- 808
- End Page
- 814
- URI
- https://scholarworks.gnu.ac.kr/handle/sw.gnu/26595
- ISSN
- 1598-9127
2636-0640
- Abstract
- Numerical flow-filed computations have been conducted around a projectile with a triangular ballute at Mach numbers of 0.3 ~ 0.9 and angles of attack of 0° ~ 30°. The expansion shape of a triangular ballute has been determined from both the manufacturing dimensions and the wind tunnel test results. It has been assumed that the shape does not alter after the ballute has been expanded completely. The computed results showed a good agreement with the wind tunnel test results. A sensitivity analysis on the aerodynamic coefficients has been performed to evaluate the quantitative effects on the flight performance. Trajectory simulation results were also in good agreement with the flight test results.
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