Modeling of liquid metal duct and free-surface flows using CFX.

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Liquid metal free-surface flows provide an option of a renewable surface for heat absorption, removal of impurities, and eliminating the problems of erosion and thermal stresses [1], [2]. In a tokamak liquid metal flows through a strong magnetic field, which results in a magnetohydrodynamic (MHD) interaction. For a free-surface flow the MHD interaction may be even more important than for the duct flows in blankets, because the electromagnetic forces may significantly deform the free-surface and thus make it unfavorable for heat extraction. The MHD-related problems for the free-surface flows have been reviewed in [3]. Among the most important ones are ... continued below

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Aleksandrova, S.; Molokov, S. & Reed, C. B. July 23, 2002.

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Description

Liquid metal free-surface flows provide an option of a renewable surface for heat absorption, removal of impurities, and eliminating the problems of erosion and thermal stresses [1], [2]. In a tokamak liquid metal flows through a strong magnetic field, which results in a magnetohydrodynamic (MHD) interaction. For a free-surface flow the MHD interaction may be even more important than for the duct flows in blankets, because the electromagnetic forces may significantly deform the free-surface and thus make it unfavorable for heat extraction. The MHD-related problems for the free-surface flows have been reviewed in [3]. Among the most important ones are the effects of nonuniform magnetic fields, inertia, surface tension, wettability and roughness of walls on both the jet/drop shape and trajectory. The main problems for the jet divertor are shown in Figure 1 and Figure 2 [4]. Particular issues related to some of the problems listed in these figures have already been tackled (Problem 1 in [5]-[7], 4 in [8], [9], 5 in [9], 6 in [4], 7 and 10 in [9], 9 in [10]). Once main fundamental aspects for each of these sub-problems are understood, the analysis will have been performed for a particular divertor design.

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  • Other Information: PBD: 23 Jul 2002

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  • Report No.: ANL/TD/TM02-30
  • Grant Number: W-31-109-ENG-38
  • DOI: 10.2172/803913 | External Link
  • Office of Scientific & Technical Information Report Number: 803913
  • Archival Resource Key: ark:/67531/metadc742350

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  • July 23, 2002

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  • Oct. 19, 2015, 7:39 p.m.

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  • March 25, 2016, 1:44 p.m.

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Aleksandrova, S.; Molokov, S. & Reed, C. B. Modeling of liquid metal duct and free-surface flows using CFX., report, July 23, 2002; Illinois. (digital.library.unt.edu/ark:/67531/metadc742350/: accessed September 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.