空气动力学基本原理.PPT.Theterm“aerodynamics”isgenerallyusedforproblemsarisingfromflightandothertopicsinvolvingtheflowofair.LudwigPrandtl,1949Aerodynamics:Thedynamicsofgases,especiallyofatmosphericinteractionswithmovingobjects.TheAmericanHeritageDictionaryofEnglishLanguage,1969