翼－壁間隙與摺疊機構氣動力效應分析

Aerodynamic Effects of Wing-wall gap and Wing Folding Mechanism

10.6124/TAASRC.200003_32(1).04

劉登(Dun C. Liu)

間隙效應 ； 摺疊機構 ； 氣動力 ； Gap and folding mechanism ； Wing aerodynamics

中國航空太空學會學刊

32卷1期（2000 / 03 / 01）

41 - 48

繁體中文

本文採數值模擬方式分析翼－壁間隙以及翼面摺疊機構對翼翅氣動力效應的影響。整體而言，間隙導致升力係數及阻力係數下降；流向壓力心位置幾乎不變，而側向壓力心外移。翼面摺疊機構則會造成軸向力的增加以及壓力心的微量前移與內移。較長摺疊機構會造成軸向力增加，這與翼剖面厚度分布有關，其對流向壓力心的影響仍微。

The present study is focused on wing aerodynamic effects due to wing-wall gap and wing folding mechanism. The results based on numerical simulation indicate that the major consequence of wing-wall gap is the decrease of lift and drag forces, and the outward movement of the center of pressure. As to the folding mechanism, it results in large increment in axial force, while the movement in center of pressure center is minor. About longer folding mechanism, the increase of axial force is still obvious, while the movement of pressure center is negligible.