First Aerodynamics Division, National Aerospace Laboratory(NAL)
First Aerodynamics Division, National Aerospace Laboratory(NAL)
出版者
航空宇宙技術研究所
出版者(英)
National Aerospace Laboratory(NAL)
雑誌名
航空宇宙技術研究所報告
雑誌名(英)
Technical Report of National Aerospace Laboratory TR-729
巻
729
ページ
16
発行年
1982-08
抄録(英)
Measurements of pressure distributions on a 5:1 ellipsoid and wing-body combinations at low subsonic speed are reported. The experiments were carried out in the 2×2m low speed wind tunnel of NAL at wind speeds from 20m/s to 50m/s with a corresponding chord Reynolds number range of 0.2×10(exp 6) to 0.5×10(exp 6). These wind tunnel experiments were conducted in order to verify assumptions relating to the location of the intersection curve between the body surface and the wake surface, which are necessary for analyzing problems of lifting body by the finite elements method(F.E.M). Observations of the flow around these bodies by use of tufts indicate that the velocity field predicted by FEM agrees fairly well with the actual field. It has been found that theory and the results of experiments generally show good agreement in aerodynamic characteristics.