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http://dx.doi.org/10.5139/JKSAS.2017.45.3.212

Aerodynamic Analysis of 18% Thick Airfoil(Case 1) with Computational Fluid Dynamics  

Kim, Cheolwan (Aeronautics Technology Research Office Korea Aerospace Research Institute)
Lee, Yung-gyo (Aeronautics Technology Research Office Korea Aerospace Research Institute)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.45, no.3, 2017 , pp. 212-216 More about this Journal
Abstract
Aerodynamic analysis for the airfoil, KARI-11-180 having 18% thickness ratio, was performed with CFD techniques. The boundary layer grid was generated by projecting the wall grid normally and fine grid was placed behind the trailing edge to capture the wake accurately. The distance to the far boundary is 100 chords and the flow condition is same as the wind tunnel test condition. Transition SST and DES turbulence models were utilized for accurate prediction of the transiton point. The predicted lift is higher but the drag is predicted lower than the wind tunnel test. 3-dimensional results with airfoil models of which aspect ratio were 2 and 5 were compared with 2-dimensional results.
Keywords
Airfoil; Wind tunnel test; Surface pressure;
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