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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 Circulation (fluid dynamics) ： ウィキペディア英語版 Circulation (fluid dynamics) In fluid dynamics, circulation is the line integral around a closed curve of the velocity field. Circulation is normally denoted Γ (Greek uppercase gamma). Circulation was first used independently by Frederick Lanchester, Wilhelm Kutta, and Nikolai Zhukovsky. ==Definition== If V is the fluid velocity on a small element of a defined curve, and ''d''l is a vector representing the differential length of that small element, the contribution of that differential length to circulation is ''d''Γ: :$d\backslash Gamma=\backslash mathbf\backslash cdot\; \backslash mathbf=|\backslash mathbf||d\backslash mathbf|\backslash cos\; \backslash theta$ where ''θ'' is the angle between the vectors V and ''d''l. The circulation around a closed curve ''C'' is the line integral: :$\backslash Gamma=\backslash oint\_\backslash mathbf\backslash cdot\; d\backslash mathbf$ The dimensions of circulation are length squared, divided by time; L2⋅T−1, which is equivalent to velocity times length. 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「Circulation (fluid dynamics)」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.