Abstract
Aerodynamic characteristics of three-dimensional wings in ground effect for Aero-levitation Electric Vehicle (AEV) are numerically investigated for various ground clearances and wing spans at the chord-length based Reynolds number of 2×106. Numerical results show that a sizeable three-dimensional flow separation occurs with formation of an arch vortex at the junction of main and vertical wings, and also that this is conjectured a primary cause for the high lift-to-drag (L/D) reduction rate of the main wing, when the wing span is decreased. Improvements on L/D ratios of the wings with small spans are pursued by breaking the coherence of superimposed adverse pressure gradients at the wing junction.
| Original language | English |
|---|---|
| Pages (from-to) | 485-494 |
| Number of pages | 10 |
| Journal | Aerospace Science and Technology |
| Volume | 9 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 2005 Sept |
Bibliographical note
Funding Information:The authors wish to express gratitude to Professor Y.H. Yoon at the Korea Air Force Academy for kindly providing a photograph of the wind tunnel test model of aero-levitation electric vehicle. This work was partially supported by the Korea Science and Engineering Foundation (Grant No. 2000-08).
Keywords
- Aero-levitation electric vehicle
- CFD analysis
- Junction flow separation
- Wing in ground effect
ASJC Scopus subject areas
- Aerospace Engineering