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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 Dupuit–Forchheimer assumption ： ウィキペディア英語版 Dupuit–Forchheimer assumption The Dupuit–Forchheimer assumption holds that groundwater flows horizontally in an unconfined aquifer and that the groundwater discharge is proportional to the saturated aquifer thickness. It was formulated by Jules Dupuit and Philipp Forchheimer in the late 1800s to simplify groundwater flow equations for analytical solutions. The Dupuit–Forchheimer assumption requires that the water table be relatively flat and that the groundwater be hydrostatic (that is, that the equipotential lines are vertical): :$\backslash begin$ \frac &= -\gamma = -\rho \, g \\() \frac &= 0 \end where $\backslash partial\; P/\backslash partial\; z$ is the vertical pressure gradient, $\backslash gamma$ is the specific weight, $\backslash rho$ is the density of water, $g$ is the standard gravity, and $\backslash partial\; h/\backslash partial\; z$ is the vertical hydraulic gradient. ==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「Dupuit–Forchheimer assumption」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.