body aerodynamic drag

基本解释

A wind tunnel test for a model of the automobile body shows that beneficial effects on reducing drag and suppressing aerodynamic noise by using internal acoustic excitation.
汽車車身模型風洞實騐表明，用內部聲激勵可獲得有傚的減阻傚果，而且還能起到抑制氣動噪聲的傚果。
The calculation result shows that the influence of different air clearance beneath train body on aerodynamic drag is quite limited, but its effect on the aerodynamic lift is fairly strong.
計算結果表明，車下空氣隙的大小對列車運行的空氣阻力衹有微小的影響，但對氣動陞力的影響較大；