한국전산유체공학회:학술대회논문집
- 2007.04a
- /
- Pages.116-119
- /
- 2007
A STUDY ON THE UNSTEADY AERODYNAMIC ANALYSIS OF HELICOPTER ROTOER USING EULER EQUATIONS AND FREE WAKE METHOD
오일러 방정식과 자유 후류법을 이용한 헬리콥터 로터의 비정상 공력 해석 연구
-
Lee, Jae-Hun
;
- Wie, Seong-Yong ;
- Kwon, Jang-Hyuk ;
-
Lee, Duck-Joo
;
- Kim, Da-Hee (Carnegie Mellon University)
-
이재훈
(한국과학기술원 대학원 항공우주공학과)
;
- 위성용 (한국과학기술원 대학원 항공우주공학과) ;
- 권장혁 (한국과학기술원 대학원 항공우주공학과) ;
-
이덕주
(한국과학기술원 대학원 항공우주공학과)
;
- 김대희
- Published : 2007.04.06
Abstract
In this study the unsteady aerodynamic analysis of a hovering helicopter rotor is performed. For the accurate flow field analysis Euler equations and the free wake method are coupled. The Euler equations are solved to find the pressure distribution around the rotor, and free wake method is used to give the boundary condition for the solution of Euler equations. Also, vortex strength and wake motion after the rotor are simulated by the free wake method. The accuracy of the present method is compared with the source sink model. The present method is applied to the hovering Caradonna-Tung rotor and compared with experimental results.