한국전산유체공학회:학술대회논문집
- 2000.10a
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- Pages.176-182
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- 2000
Dynamic Stall Control Using Aerodynamic Sensitivity Analysis
민감도 해석을 이용한 동적실속 제어
- Published : 2000.10.01
Abstract
This paper presents methods for dynamic stall control utilizing an optimization approach. Unsteady aerodynamic sensitivity code is developed using a direct diffentiation method from a discrete two-dimensional unsteady compressible Navier-Stokes code including a two-equation turbulence model. Dynamic stall control is conducted by minimizing an objective function defined at an instant instead of integrating a response for a period of time. Unsteady sensitivity derivative of the objective function is calculated by the sensitivity code, and optimization is conducted using a linear line search method at every physical time level. Examples of dynamic stall control utilizing airfoils nose radius or maximum thickness variation show very satisfactory results.
Keywords