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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 Matched index of refraction flow facility ： ウィキペディア英語版 Matched index of refraction flow facility MIR stands for Matched-Index-of-Refraction. It is a facility located at the Idaho National Laboratory. It was built in the 1990s. The purpose of the fluid dynamics experiments in the MIR (Matched Index of-Refraction) flow system at Idaho National Laboratory (INL) is to develop benchmark databases for the assessment of Computational Fluid Dynamics (CFD) solutions of the momentum equations, scalar mixing, and turbulence models for the flow ratios between coolant channels and bypass gaps in the interstitial regions of typical prismatic standard fuel element or upper reflector block geometries of typical Very High Temperature Reactors (VHTR) in the limiting case of negligible buoyancy and constant fluid properties. ==How It Works== MIR uses Doppler Velocimetry to produce a three-dimensional image of a model inside the loop. To do this, the loop circulates about 3500 gallons of semi-transparent mineral oil similar to baby oil. Special quartz models, built to scale, are inserted into the loop near the observation equipment. MIR is capable of analyzing a variety of models, including the interior of nuclear reactor cores. The purpose of MIR is to allow researchers to analyze a model’s fluid properties; how its structure interacts with the flow of air, water or another fluid medium through and/or around it. In this way, MIR is somewhat comparable to a wind-tunnel. The information MIR can provide is valuable to researchers who want to evaluate a design. Once the oil is flowing and is held at a very specific temperature, the oil takes on the same refractory properties as the quartz model. This allows researchers and instruments to see clearly what’s going on with the flow inside the model. Researchers may add small particles to the oil to help them detect flow patterns, or may simply depend on impurities in the oil.〔(【引用サイトリンク】 title=Matched Index of Refraction Technique )〕 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「Matched index of refraction flow facility」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.