Journal of computational fluids engineering (한국전산유체공학회지)
- Volume 5 Issue 2
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- Pages.9-19
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- 2000
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- 1598-6071(pISSN)
Numerical Study on Transient Aerodynamics of Moving Flap Using Conservative Chimera Grid Method
보존적 중첩격자기법을 이용한 동적 플랩의 천이적 공력거동에 관한 수치적 연구
- Published : 2000.09.01
Abstract
Transient aerodynamic response of an airfoil to a moving plane-flap is numerically investigated using the two-dimensional Euler equations with conservative Chimera grid method. A body moving relative to a stationary grid is treated by an overset grid bounded by a 'Dynamic Domain Dividing Line' which has an advantage for constructing a well-defined hole-cutting boundary. A conservative Chimera grid method with the dynamic domain-dividing line technique is applied and validated by solving the flowfield around a circular cylinder moving supersonic speed. The unsteady and transient characteristics of the flow solver are also examined by computations of an oscillating airfoil and a ramp pitching airfoil respectively. The transient aerodynamic behavior of an airfoil with a moving plane-flap is analyzed for various flow conditions such as deflecting rate of flap and free stream Mach number.
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