| Popis: |
Researches of “Aerotrain" using natural energy resources have been conducted in this decade. The Aerotrain has wings and flies close to the U shaped guide way to use the ground effect of the wings. The wing has high lift/drag coefficient but interferes with the ground through the fluid viscosity. Experiments of aerodynamic characteristics of the wing have to be made in a towing wing tunnel, because it moves relative to the ground. So far, the rotating disc apparatus was developed in order to make a towing wing experiment, and the aerodynamic characteristics, such as lift coefficient was examined. But it was limited to the main wing without a side wing nor a side wall. In this paper, it was made numerical simulations of the flow past the main wing with side wing running close to the ground and the side wall. The aerodynamic characteristics were elucidated and the behavior of the flow around the side wall was made clear. The results of lift coefficient of the main-side wing obtained by experiment and numerical analysis were compared, and the usefulness of the rotating disc was examined. |
