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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 Stream thrust averaging ： ウィキペディア英語版 Stream thrust averaging In fluid dynamics, stream thrust averaging is a process used to convert three-dimensional flow through a duct into one-dimensional uniform flow. It makes the assumptions that the flow is mixed adiabatically and without friction. However, due to the mixing process, there is a net increase in the entropy of the system. Although there is an increase in entropy, the stream thrust averaged values are more representative of the flow than a simple average as a simple average would violate the second Law of Thermodynamics. ==Equations for a perfect gas== Stream thrust: :$F\; =\; \backslash int\; \backslash left(\backslash rho\; \backslash mathbf\; \backslash cdot\; d\; \backslash mathbf\; \backslash right)\; \backslash mathbf\; \backslash cdot\; \backslash mathbf\; +\backslash int\; pd\; \backslash mathbf\; \backslash cdot\; \backslash mathbf.$ Mass flow: :$\backslash dot\; m\; =\; \backslash int\; \backslash rho\; \backslash mathbf\; \backslash cdot\; d\; \backslash mathbf.$ Stagnation enthalpy: :$H\; =\; \backslash int\; \backslash left(\}\; \backslash right)\; \backslash left(\; h+\; \backslash right),$ :$\backslash overline^2\; \backslash left(\; +=0.$ 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「Stream thrust averaging」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.