The twisted aerofoil shape of moder

The twisted aerofoil shape of modern aircraft propellers was pioneered by the Wright brothers. While some earlier engineers had attempted to model air propellers on marine propellers, the Wrights realized that a propeller is essentially the same as a wing, and were able to use data from their earlier wind tunnel experiments on wings. They also introduced a twist along the length of the blades. This was necessary to ensure the angle of attack of the blades was kept relatively constant along their length.[14] Their original propeller blades were only about 5% less efficient than the modern equivalent, some 100 years later.[15] The understanding of low speed propeller aerodynamics was fairly complete by the 1920s, but later requirements to handle more power in smaller diameter have made the problem more complex.

結果 (繁體中文) 1:

現代飛機螺旋槳的扭曲的機翼形狀最先是由萊特兄弟。雖然一些早期的工程師曾到模型空氣螺旋槳船舶螺旋槳葉片，萊特兄弟實現，螺旋槳本質上是一隻翅膀一樣，能夠在翅膀上使用資料從其早期的風洞實驗。他們還介紹了麻花沿葉片的長度。這是有必要確保葉片攻角保持相對恒定沿其長度。[14] 他們原始的螺旋槳葉片只是約 5%的效率較低，相當於現代，比一些 100 年後。[15] 低速螺旋槳空氣動力學的理解是相當完整的 20 世紀 20 年代，但後來要求，可處理更多的權力，在較小的直徑有使問題更加複雜。

結果 (繁體中文) 2:

現代飛機螺旋槳的扭曲的翼型是由萊特兄弟首創。雖然一些較早工程師們試圖對船用螺旋槳空氣螺旋槳建模，萊特兄弟意識到螺旋槳基本上是一樣的翼，並且能對翼從他們早先風洞實驗使用的數據。他們還推出了扭轉沿葉片的長度。這是必要的，以確保葉片的攻角保持沿其長度相對恆定。[14] 他們原來的螺旋槳葉片只有約5％，比相當於現代的，大約100年後，效率較低。[15] 低速螺旋槳空氣動力學的理解是由20世紀20年代還算齊全，但後來要求較小的直徑，以處理更多的權力已經使問題更加複雜。