翻訳と辞書 Words near each other ・ Flower Hill, New York ・ Flower Hospital ・ Flower Hour ・ Flower Hujer ・ Flower in a Storm ・ Flower in the crannied wall ・ Flower in the Gun Barrel ・ Flower in the Pocket ・ Flower In The Rain ・ Flower In The Sun (song) ・ Flower in the Wonderland ・ Flow line ・ Flow management ・ Flow map ・ Flow mark ・ Flow measurement ・ Flow meter error ・ FLOW MMA ・ Flow Moss railway station ・ Flow Motion ・ Flow Music ・ Flow My Firetear ・ Flow My Tears ・ Flow My Tears, the Policeman Said ・ Flow Natural ・ Flow network ・ Flow of funds ・ Flow On ・ Flow plasticity theory ・ Flow process chart 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 Flow measurement ： ウィキペディア英語版 Flow measurement Flow measurement is the quantification of bulk fluid movement. Flow can be measured in a variety of ways. Positive-displacement flow meters accumulate a fixed volume of fluid and then count the number of times the volume is filled to measure flow. Other flow measurement methods rely on forces produced by the flowing stream as it overcomes a known constriction, to indirectly calculate flow. Flow may be measured by measuring the velocity of fluid over a known area. ==Units of measurement== Both gas and liquid flow can be measured in volumetric or mass flow rates, such as liters per second or kilograms per second, respectively. These measurements are related by the material's density. The density of a liquid is almost independent of conditions. This is not the case for gasses, the densities of which depend greatly upon pressure, temperature and to a lesser extent, composition. When gases or liquids are transferred for their energy content, as in the sale of natural gas, the flow rate may also be expressed in terms of energy flow, such as GJ/hour or BTU/day. The energy flow rate is the volumetric flow rate multiplied by the energy content per unit volume or mass flow rate multiplied by the energy content per unit mass. Energy flow rate is usually derived from mass or volumetric flow rate by the use of a flow computer. In engineering contexts, the volumetric flow rate is usually given the symbol $Q$, and the mass flow rate, the symbol $\backslash dot\; m$. For a fluid having density $\backslash rho$, mass and volumetric flow rates may be related by $\backslash dot\; m\; =\; \backslash rho$ *Q . 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「Flow measurement」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.