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Journal of the Korea Institute of Military Science and Technology 2009;12(6):704-710.
Comparison Study of Viscous Flutter Boundary for the AGARD 445.6 Wing Using Different Turbulent Boundary Layer Models
Yo-Han Kim, Dong-Hyun Kim, Dong-Man Kim, Soo-Hyun Kim
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난류 경계층 모델을 고려한 AGARD 445.6 날개의 플러터 해석 및 실험결과 비교
김요한, 김동현, 김동만, 김수현
1경상대학교 기계항공공학부 대학원
2경상대학교 기계항공공학부 및 항공기부품기술연구소
3씨에이코리아(주)
Abstract
In this study, a comparison study of flutter analysis for the AGARD 445.6 wing with wind turnnel test data has been conducted in the subsonic, transonic and supersonic flow regions. Nonlinear aeroelastic using FSIPRO3D which is a generalized user-friendly fluid-structure analyses have been conducted for a 3D wing configuration considering shockwave and turbulent viscosity effects. The developed fluid-structure coupled analysis system is applied for aeroelastic computations combining computational structure dynamics(CSD), finite element method(FEM) and computations fluid dynamics(CFD) in the time domain. MSC/NASTRAN is used for the vibration analysis of a wing model, and then the result is applied to the FSIPRO3D module. the results for dynamic aeroelastic response using different turbulent models are presented for several Mach numbers. Calculated flutter boundary are compared with the wind-tunnel experimental and the results show very good agreements.
Key Words: Aeroelastic, Flutter, Fluid-Structure Coupled System, Flow Viscosity, Turbulent Model
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