한국전산유체공학회:학술대회논문집
- 한국전산유체공학회 2009년 춘계학술대회논문집
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- Pages.39-42
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- 2009
Winglet이 부착된 날개의 구조변형에 의한 공력 변화
STRUCTURAL DEFORMATION EFFECT ON THE AERODYNAMICS OF A WING WITH WINGLETS
초록
The aerodynamic characteristics of aircraft winglet with structural deformation was investigated using the static FSI(Fluid-Structure Interaction) system. The system, comprised of CAD, CFD, CSD, VSI, and grid regeneration modules, was constructed. In the process VSI, grid regeneration, and integration modules were developed to combine CSD and CFD modules. As a test model, KC-135A, the double winglet suggested by Whitcomb, was selected and its aerodynamic characteristics for the rigid and deformable models was calculated by applying the static FSI system. As a result, the lift and drag coefficients of test models were reduced to 11% and 1.3%, respectively.