定常升阻力:基础理论的主流演化

Steady Lift and Drag:The Mainstream Evolution of Fundamental Theory

本文专注于飞行器定常绕流升阻力的关键物理机理和精确理论。自古以来,人类对飞得更高、更快、更远的梦想和追求从未停止。从20世纪初莱特兄弟实现载人动力飞行和Kutta-Joukowski升力公式问世开始,空气动力学理论经历了一个多世纪的曲折探索,从无黏到有黏、从定常到非定常、从不可压到可压缩、从近似到精确,已经发展出众多关于升力和阻力的理论,在实践中得到了多方面的充分检验,为航空航天、流体机械、风工程等众多应用领域提供了不可或缺的基础保证。

This paper focuses on the key physical mechanisms and rigorous theories of aircraft lift and drag in steady flow.Since ancient times,human beings have never stopped dreaming and pursuing to fly higher,faster and farther.Since the Wright brothers realized manned power flight and the Kutta-Joukowski lift formula came out in the early 20th century,aerodynamics has gone through more than a century of tortuous exploration,from inviscid to viscous,from steady to unsteady,from incompressible to compressible,from approximate to precise,leading to a series of lift and drag theories.It has been fully tested in various practical aspects and provides an indispensable basic guarantee for many applied fields such as aerospace,fluid machinery,and wind engineering.