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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 Bhatnagar–Gross–Krook operator ： ウィキペディア英語版 Bhatnagar–Gross–Krook operator The Bhatnagar–Gross–Krook operator (abbreviated BGK operator) term refers to a collision operator used in the Boltzmann Equation and in the Lattice Boltzmann method, a Computational fluid dynamics technique. It is given by the following formula: :$\backslash Omega\_i=-\backslash tau^(n\_i-n\_i^)$ where $n\_i^$ is a local equilibrium value for the population of particles in the direction of link $\backslash mathbf\_i$ The term $\backslash tau$ is a relaxation time, and related to the viscosity. The operator is named after Prabhu L. Bhatnagar, Eugene P. Gross, and Max Krook, the three scientists who introduced it in a paper in Physical Review in 1954.〔 〕 ==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「Bhatnagar–Gross–Krook operator」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.