Comparative Study on Numerical Analysis Methods on the 2D Ground Effect |
Kim, Yoon-Sik;Shin, Myung-Soo;Cho, Yong-Jin; |
Marine Transportation and Safety Research Department, MOERI/KORDI;Marine Transportation and Safety Research Department, MOERI/KORDI;Marine Transportation and Safety Research Department, MOERI/KORDI; |
2차원 지면효과에 대한 수치해석 기법 비교 연구 |
김윤식;신명수;조용진; |
한국해양연구원 해양시스템안전연구소 해양운전안전연구본부;한국해양연구원 해양시스템안전연구소 해양운전안전연구본부;한국해양연구원 해양시스템안전연구소 해양운전안전연구본부; |
|
© 2007 The Korean Society of Ocean Engineers
Open access / Under a Creative Commons License
|
Keywords:
Ground effect, Turbulent flow simulations, Potential analysis, Longitudinal static stability, NACA 4412 airfoil, Aerodynamic center |
핵심용어:
지면효과, 난류 유동장 모사, 포텐셜 해석, 종방향 정적 안정성, NACA 4412 날개단면, 공력중심 |
Abstract |
A comparative study on the turbulent flaw simulation and the potential flaw analysis has been performed. A law Mach number preconditioned Navier-Stokes solver, using the multi-block grid method and a panel method based on the velocity potential, have been developed and validated by comparison to the experimental data. The present numerical analysis methods are applied to the ground effect problem around the NACA 4412 airfoil. It has been confirmed that the potential flaw analysis on the ground effect, using the image method, is consistent, to some degree, with the viscous calculations for high Reynolds number flows. |
|