| A Study on the Modeling Method of Missile Fin Aerodynamic Coefficient using Wind Tunnel Test and CFD |
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Kyung Jin Yim |
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The 1st Research and Development Institute, Agency for Defense Development |
| 풍동시험과 CFD 해석 결과를 반영한 유도무기 조종날개 공력계수 모델링 기법 연구 |
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임경진 |
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국방과학연구소 제1기술연구본부 |
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| Abstract |
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A study on aerodynamic modeling was performed to predict the hinge moments required for initial design of missile. Fin aerodynamic coefficients were modeled using the equivalent angle of attack method based on the wind tunnel test. In addition, CFD analysis was performed to calculate the dynamic pressure around the body and improve the accuracy of aerodynamic coefficients. The aerodynamic coefficient accuracy was verified by comparisons of the coefficient acquired from wind tunnel test and prediction of flow conditions, not involved in the model built-up. It was confirmed that fin aerodynamic coefficients can be predicted effectively by using the proposed method. |
| Key Words:
Modeling Aerodynamic Coefficient, Hinge Moment, CFD, Wind Tunnel Test |
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