1206 回転円環翼にはたらく空気力と安定性 : 革新的垂直離着陸機の水平飛行性能向上をめざして(2)(OS12-2 飛ぶもの・泳ぐものとそのメカニズム・流体力学,OS12飛ぶもの・泳ぐものとそのメカニズム・流体力学)

概要

論文の詳細を見る
An experimental investigation into the aerodynamics of a ring wing has been carried out in an low speed wind tunnel, at a Reynolds number of 215,000. A flying toy that has a rim on their outer edge was selected as a model of the ring wing to examine the effect of rim on the aerodynamic performances when the flow comes from the trailing edge of the airfoil. The lift and drag coefficients shows that the ring wing with the rim has a good performance in the reversed flow, resulting low drag characteristics at a flight angle of attack. CFD analysis revealed that the separated vortex from the rim makes the streamline smooth and thereby set their drag lower than the case without rim at the same airfoil.
一般社団法人日本機械学会の論文
2006-10-28