研究表明,侧滑使机翼迎风侧涡绞合推迟,涡提前破裂,背风侧正好相反。
Results show that sideslip makes twisting of vortices at upwind side delayed, but bursting of.
中等厚度的防风林在背风侧可在20倍于树高的距离而在迎风侧则在3倍于树高的距离上减小风速10%以上。
A medium-thick shelterbelt can reduce wind velocity by more than 10 percent to a distance of 20 times the tree height on the leeward side and three times the height to the windward.
改型进气道减小了输出轴背风侧的分离和迎风侧的转弯损失,使其既保持了高总压恢复系数,且畸变指数最大降低了74%。
By modifying, the separation zone behind the shaft and turn loss at upwind side are all reduced. Modifying inlet maintains high pressure recovery, and the distortion index is reduced by 74% at most.
有攻角时,背风侧喷流前的高压区更大,喷流包裹作用的影响区域前移,喷流的控制效果更好,这一趋势随攻角的增大更加明显。
In the case of Angle of attacks, the high pressure region before the leeward side jet enlarged, the region of jet wraparound effect moving forward, and the jet interaction control was more effective.
lee shore(背风岸)指的是在船只背风一侧的陆地(因此如果船只被吹动或锚松动了,就会有危险)。
A lee shore is land that is downwind of the boat (and thus is a danger if the boat is blown or drags anchor).
我处在水手舱背风的一侧,主帆仍张满了风,挡住了我的视线,使我看不到后甲板的一部分。
I was on the lee side of the forecastle, and the mainsail, which was still drawing, concealed from me a certain portion of the after-deck.
我处在水手舱背风的一侧,主帆仍张满了风,挡住了我的视线,使我看不到后甲板的一部分。
I was on the lee side of the forecastle, and the mainsail, which was still drawing, concealed from me a certain portion of the after-deck.
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