A Liquid Metal Flume for Free Surface Magnetohydrodynamic Experiments

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We present an experiment designed to study magnetohydrodynamic effects in free-surface channel flow. The wide aspect ratio channel (the width to height ratio is about 15) is completely enclosed in an inert atmosphere to prevent oxidization of the liquid metal. A custom-designed pump reduces entrainment of oxygen, which was found to be a problem with standard centrifugal and gear pumps. Laser Doppler Velocimetry experiments characterize velocity profiles of the flow. Various flow constraints mitigate secondary circulation and end effects on the flow. Measurements of the wave propagation characteristics in the liquid metal demonstrate the surfactant effect of surface oxides and ... continued below

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Nornberg, M.D.; Ji, H.; Peterson, J.L. & Rhoads, J.R. August 27, 2008.

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Description

We present an experiment designed to study magnetohydrodynamic effects in free-surface channel flow. The wide aspect ratio channel (the width to height ratio is about 15) is completely enclosed in an inert atmosphere to prevent oxidization of the liquid metal. A custom-designed pump reduces entrainment of oxygen, which was found to be a problem with standard centrifugal and gear pumps. Laser Doppler Velocimetry experiments characterize velocity profiles of the flow. Various flow constraints mitigate secondary circulation and end effects on the flow. Measurements of the wave propagation characteristics in the liquid metal demonstrate the surfactant effect of surface oxides and the damping of fluctuations by a cross-channel magnetic field.

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501KB

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  • Related Information: Review of Scientific Instruments (June 2008)

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  • Report No.: PPPL-4345
  • Grant Number: DE-ACO2-76CHO3073
  • DOI: 10.2172/938980 | External Link
  • Office of Scientific & Technical Information Report Number: 938980
  • Archival Resource Key: ark:/67531/metadc895136

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Office of Scientific & Technical Information Technical Reports

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Creation Date

  • August 27, 2008

Added to The UNT Digital Library

  • Sept. 27, 2016, 1:39 a.m.

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  • Nov. 18, 2016, 10:01 p.m.

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Nornberg, M.D.; Ji, H.; Peterson, J.L. & Rhoads, J.R. A Liquid Metal Flume for Free Surface Magnetohydrodynamic Experiments, report, August 27, 2008; Princeton, New Jersey. (digital.library.unt.edu/ark:/67531/metadc895136/: accessed November 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.