한국전산유체공학회:학술대회논문집
- 한국전산유체공학회 2007년도 춘계 학술대회논문집
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- Pages.50-52
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- 2007
다양한 난류 모텔에 따른 익형 특성 예측
PREDICTION OF AIRFOIL CHARACTERISTICS WITH VARIOUS TURBULENCE MODELING
초록
In the present paper, some difficulties encountered in predicting airfoil characteristics are described and solutions for those problems are discussed Since drag is determined by the amounts of pressure and, especially, shear stress, accurate estimation of shear stress is very crucial. However shear stress computation is dependent on the grid density and turbulence model, it should be consistent in preparing grid and turbulence model. When the transition from laminar to turbulent happen at the middle of airfoil, CFD solver should divide the region into laminar and turbulent region based on the transition location.