Video/animation icon  Matched Index of Refraction (MIR) facility

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Resource type: Video/animation
Description: This video presents the principal investigator Hugh McIlroy talking about Matched Index of Refraction Flow (MIR) Facility at INL. Scientists use computers to model the inner workings of nuclear reactors, and MIR helps validate those models. The purpose of the fluid dynamics experiments in the MIR flow system 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. The experiments use optical techniques, primarily particle image velocimetry (PIV). The benefit of the MIR technique is that it permits optical measurements to determine flow characteristics in passages and around objects to be obtained without locating a disturbing transducer in the flow field and without distortion of the optical paths.
Keywords: MIR • reactor • modeling • fluid dynamics • probe • particle • high temperature • velocimetry • flow ratio • optical • image
Categories: Science approaches > Modelling & simulation
Applications > Energy > Nuclear energy
Properties > Electrical, magnetic & optical > Optical
Testing, analysis & experimentation
Created by: Idaho National Laboratory
Contributions: Hugh McIlroy, Idaho National Laboratory
License: This resource is released under the Creative Commons Attribution license (3.0 Unported).
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Date created: 10 May 2010
Date added: 23 March 2011
Resource ID: 3491