boundary layer control

Japanese: boundary layer control(英語表記)boundarylayercontrol
boundary layer control

...For this reason, the leading edge of the wing is extended forward to create a gap, and the air hitting the underside is directed directly to the upper surface of the wing to prevent separation. This extended part is called a slat, and the gap created by the extended slat is called a slot.
[Boundary Layer Control Device]
This device blows air from inside the wing to give momentum to areas where the airflow (boundary layer) on the surface of the wing is likely to separate, preventing the separation. It is also called a BLC device, which is an acronym for the English term boundary layer control. Blowing air from a simple flap on the trailing edge or from the bend in a leading edge flap has the effect of preventing the airflow from separating, allowing the flap angle to be increased and C L max to be increased.

*Some of the terminology explanations that mention "boundary layer control" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…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。後縁の単純フラップや前縁フラップの折れ曲り目から空気を吹き出すと,気流のはがれを防ぐ効果があるため,フラップ角を大きくできてCLmaxを増やせる。…

※「boundary layer control」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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