strake

Japanese: strake
strake

...Also, while a typical delta wing has a slight shift in the aerodynamic center at subsonic and supersonic speeds, a double delta wing can make this shift very small by utilizing the above properties. A double delta wing with a curved planform is sometimes called an ogee wing, and there is also a planform that combines a delta wing with a slightly larger aspect ratio wing, taking advantage of the property that the vortex generated by a sharp delta wing prevents stall and increases lift up to a large angle of attack. In this case, the forward delta wing part is called a strake. Aerodynamically designed wings that are integrated with the fuselage are called blended wing-body, and generally have a smooth boundary between the wing and the fuselage.

*Some terminology explanations that mention "strake" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…また一般の三角翼は亜音速と超音速では空力中心の移動が若干あるが,二重三角翼は上記の性質を利用して移動をごく小さくできる。なお,二重三角翼の平面形を曲線的にしたものをオージー翼ogee wingと呼ぶこともあり,また鋭い三角翼で発生する渦が大迎え角まで失速を防ぎ揚力を増す性質を利用して,三角翼を一般のアスペクト比のやや大きい翼と組み合わせた平面形もあり,この場合,前方の三角翼部分をストレーキstrakeと呼ぶ。なお,これらの翼を胴体とまとめて一体として空力設計したものは翼胴一体化blended wing‐bodyと呼ばれ,一般に翼と胴体との境目がなだらかになる。…

※「strake」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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