翻訳と辞書 Words near each other ・ Lambulodes sericea ・ Lambulosia ・ Lambunao, Iloilo ・ Lambung Mangkurat Museum ・ Lambung Mangkurat University ・ Lambusart ・ Lambussie ・ Lambussie (Ghana parliament constituency) ・ Lambussie Karni District ・ Lambuth Inn ・ Lambuth University ・ Lambwe ・ Lambya language ・ Lambya people ・ Lamb–Mössbauer factor ・ Lamb–Oseen vortex ・ LAMC3 ・ Lamchin ・ Lamchyu ・ Lamco ・ Lamco Airport ・ Lamco Eurocub ・ Lamco International Insurance Ltd ・ Lamd ・ Lamdan ・ Lamdan Prize ・ Lamdar ・ Lamdre ・ Lamduan District ・ LAME Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Lamb–Oseen vortex ： ウィキペディア英語版 Lamb–Oseen vortex In fluid dynamics, the Lamb–Oseen vortex models a line vortex that decays due to viscosity. This vortex is named after Horace Lamb and Carl Wilhelm Oseen.〔 p. 253.〕 The mathematical model for the flow velocity in the circumferential $\backslash theta$–direction in the Lamb–Oseen vortex is: :$V\_\backslash theta(r,t)\; =\; \backslash frac\; \backslash left(1-\backslash exp\backslash left(-\backslash frac\backslash right)\backslash right),$ with *$r$ = radius, *$r\_c(t)=\backslash sqrt$ = core radius of vortex, *$\backslash nu$ = viscosity, and *$\backslash Gamma$ = circulation contained in the vortex. The radial velocity is equal to zero. An alternative definition is to use the peak tangential velocity of the vortex rather than the total circulation :$V\_\backslash theta\backslash left(\; r\; \backslash right)\; =$ V_ \left( 1 + \frac \right) \frac \left(1 - \exp \left( - \alpha \frac \right) \right ), where $r\_\backslash max\; (t)=\backslash sqrt\; r\_c(t)$ is the radius at which $v\_\backslash max$ is attained, and the number ''α'' = 1.25643, see Devenport et al. The pressure field simply ensures the vortex rotates in the circumferential direction, providing the centripetal force :$=\; \backslash rho\; ,$ where ''ρ'' is the constant density ==References== 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「Lamb–Oseen vortex」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.