@inproceedings{1e208a15aaa7441ca72d85a27490075f,
title = "Numerical investigation of the aerodynamics of a delta wing in ground effect",
abstract = "The aerodynamics of a delta wing aircraft is influenced by the ground effect during takeoff and landing. In this paper, the ground effect of a sharp leading edge delta wing with sweep angle of 65° is investigated by using ANSYS FLUENT employing the unsteady compressible Reynolds-Averaged Navier-Stokes (RANS) equations and the Shear Stress Transport (SST) k-ω turbulence model. The angle of attack is fixed at 20° and the flight height is varied from high altitude to close proximity to the ground. The lift, drag and nosedown moment increase with decreasing flight height, and the major contribution to the variation in aerodynamic forces comes from the windward side of the wing. In ground effect, the pressure under the delta wing increases due to {"}ramping{"} effect, the strength of the leading-edge vortex enhances before breakdown, and the vortex breakdown is promoted due to the increased adverse pressure gradient.",
author = "Qiulin Qu and Zhe Lu and Hao Guo and Peiqing Liu and Agarwal, \{Ramesh K.\}",
year = "2014",
doi = "10.2514/6.2014-2702",
language = "英语",
isbn = "9781624102882",
series = "32nd AIAA Applied Aerodynamics Conference",
publisher = "American Institute of Aeronautics and Astronautics Inc.",
booktitle = "32nd AIAA Applied Aerodynamics Conference",
note = "32nd AIAA Applied Aerodynamics Conference 2014 ; Conference date: 16-06-2014 Through 20-06-2014",
}