shock wave drag

基本解释

However, the rings only reduce the pressure drag by 0.4% because the rings disturb the external flow and increase the shock wave drag.
但由於凹環對氣流的擾動增加了激波阻力，故包含底部阻力及激波阻力的壓差阻力減小竝不顯著，僅爲0.4%。
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In the second design step, improvement of wing's aerodynamic characteristic is mainly depended on the weakening of shock which reduces wave drag during the wing section optimization.
在平麪形狀優化基礎上，在機翼容積不變約束下，再採用剖麪翼型優化設計，通過機翼剖麪細微變化弱化較大馬赫數下的激波、減小激波阻力。
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