S-Space College of Engineering/Engineering Practice School (공과대학/대학원) Dept. of Mechanical Aerospace Engineering (기계항공공학부) Theses (Master's Degree_기계항공공학부)
Large eddy simulation of flow over NACA4412 airfoil at the critical angle of attack : 임계 받음각에서 NACA4412 에어포일 주위 유동의 큰 에디 모사
- EunHye Ahn
- 공과대학 기계항공공학부
- Issue Date
- 서울대학교 대학원
- 학위논문 (석사)-- 서울대학교 대학원 : 기계항공공학부, 2014. 2. 최해천.
- The flow characteristics over NACA4412 airfoil near stall are investigated using large eddy simulation (LES) at the Reynolds number of 1,640,000 based on the chord length (c) and free stream velocity (u_inf). This flow is challenging to simulate because it contains thin turbulent boundary layer, separation near the trailing edge, and wake. Various flow characteristics are presented at the critical angle of attack of 12deg., and the results are compared with those from Wadcocks experiment. Moreover, the flow phenomena at a few more angles of attack before and after stall are presented.