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http://dx.doi.org/10.9766/KIMST.2019.22.3.360

A Study on the Modeling Method of Missile Fin Aerodynamic Coefficient using Wind Tunnel Test and CFD  

Yim, Kyung Jin (The 1st Research and Development Institute, Agency for Defense Development)
Publication Information
Journal of the Korea Institute of Military Science and Technology / v.22, no.3, 2019 , pp. 360-368 More about this Journal
Abstract
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.
Keywords
Modeling Aerodynamic Coefficient; Hinge Moment; CFD; Wind Tunnel Test;
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