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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 Küssner effect ： ウィキペディア英語版 Küssner effect In fluid dynamics, the Küssner effect describes the unsteady aerodynamic forces on an airfoil or hydrofoil caused by encountering a transverse gust. This is directly related to the Küssner function, used in describing the effect. Both the effect and function are named after Hans Georg Küssner (1900–1984), a German aerodynamics engineer.〔Hirschel, Prem and Madelung (2004) p. 283.〕 Küssner derived an approximate model for an airfoil encountering a sudden step-like change in the transverse gust velocity — or, equivalently, as seen from a frame of reference moving with the airfoil: a sudden change in the angle of attack. The airfoil is modelled as a flat plate in a potential flow, moving with constant horizontal velocity.〔Cebeci (2005) pp. 15–16.〕 For this case he derived the impulse response function — known as Küssner function〔Bisplinghoff, Ashley and Halfman (1996) pp. 287–288.〕 — needed to compute the unsteady lift and moment exerted by the air on the airfoil. ==Notes== 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「Küssner effect」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.