A Study on the Performance of the Wing In Ground Effect by a Vortex Lattice Method

J. Ocean Eng. Technol. 1998;12(2):87-96.

Jeong, Gwang-Hyo;Jang, Jong-Hui;Jeon, Ho-Hwan;

Busan National University;Busan National University;;

와류 격자법에 의한 지면효과익의 성능 연구

정광효;장종희;전호환;

부산대학교;부산대학교;

Keywords: Vortex Lattice Method, Wing In Ground Effect, Lift, Endplate, Ground Clearance, Wake Roll-up

핵심용어: 와류 격자법, 지면효과익, 양력, 날개끝단판, 비행고도, 후류변형

Abstract

A numerical simulation was done to investigate the performance of thin wings in close vicinity to ground. The simulation is based on Vortex Lattice Method(VLM) and freely deforming wake elements are taken into account for a sudden acceleration case. The parameters covered in the simulation are angle of attack, aspect ratio, ground clearance, sweep angle and taper ratio. In addition, the effect of the wing endplate on the ground effect is included. The wing sections used for present computations are uncambered, cambered and S-types. The present computational results are compared with other published computational results and experimental data.