实验表明，底部压强分布相对较均匀，底部在不同外界反压下具有不同的气动状态。
It is shown that base pressure distribution is comparatively uniform and base has different aerodynamic behaviours under different ambient pressures.
双稳态复合材料能在风力及水流状态变化时迅速改变空气动力形态，帮助去除涡轮叶片上多余的压力。
A bistable composite capable of altering its aerodynamic profile rapidly when wind and current conditions changed would help to remove unwanted stresses in the blades.
庭院的高墙和较高的温度导致这架黑鹰在其自身的旋翼洗流中下坠。旋翼洗流是一种“具有动力的下坠”，这是种很危险的空气动力学状态。
The high walls of the compound and the warm temperatures had caused the Black Hawk to descend inside its own rotor wash-a hazardous aerodynamic situation known as "settling with power."
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