slot

Japanese: slot
slot

...When the angle of attack of a wing becomes large, the air first hits the underside of the wing slightly behind the leading edge, then flows around the leading edge to the upper surface of the wing, losing momentum and becoming more likely to separate, causing a stall. To prevent this, the leading edge of the wing is extended forward to create a gap, allowing the air that hits the underside to flow directly to the upper surface of the wing, preventing separation. This forward-extending part is called a slat, and the gap created by the slat is called a slot.
[Boundary Layer Control Device]
This device blows out air from inside the wing to give momentum to areas where the airflow (boundary layer) on the surface of the wing is prone to separating, preventing the separation. It is also called a BLC device, which is an acronym for the English boundary layer control.

*Some of the terminology that mentions "slot" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…翼の迎え角が大きくなると,空気はまず前縁よりやや後ろの翼下面に当たり,ここから前縁を回って翼の上面に流れていくので,その間に勢いをなくしてはがれやすくなり失速する。このため翼の前縁部を前へ張り出させて隙間を開け,下面に当たった空気を直接翼上面に流してはがれを防ぐことが行われるが,この前へ張り出す部分をスラットslatといい,スラットが張り出してできる隙間をスロットslotと呼んでいる。
[境界層制御装置]
 翼の表面の気流(境界層)のはがれやすい所に,翼内から別の空気を吹き出して勢いをつけ,はがれを防ぐ装置で,英語のboundary layer controlの頭文字をとってBLC装置ともいう。…

※「slot」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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