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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Drag area ： ウィキペディア英語版 Drag area In mechanics and aerodynamics, the drag area of an object represents the effective size of the object as it is "seen" by the fluid flow around it. The drag area is usually expressed as a product $C\_d\; A,$ where $A$ is a representative area of the object, and $C\_d$ is the drag coefficient, which represents what shape it has and how streamlined it is. The drag coefficient plays a role in Reynold's drag equation, :$F\_d=\backslash frac\backslash \; \backslash rho\backslash \; C\_d\; A\backslash \; v^2.$ Here, $F\_d$ is the drag force, $\backslash rho$ the density of the fluid, and $v$ the speed of the object relative to the fluid. ==See also== *Drag (physics) *Automobile drag coefficient#Drag area *Zero-lift drag coefficient 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Drag area」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.