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Title: Effects of imperfect insulating coatings on the flow partitioning between parallel channels in self-cooled liquid metal blankets

Abstract

Fully developed liquid-metal flow in a system of three straight rectangular ducts is investigated. The ducts are electrically coupled by common conducting walls covered with an imperfect insulating layer. A numerical model of magnetohydrodynamic (MHD) flow in the system is described. Since no additional assumptions, such as in the core-flow solution, have been made, this model can be used for the analysis of MHD flow in parallel ducts with nearly perfect insulating coating. Any orientation of the applied uniform magnetic field is possible. Electrical conductivities of the dividing and exterior walls, and of the insulating layers in individual channels can be varied independently, as well as characteristics of insulating imperfections in each channel. A restriction of equal pressure gradients in all ducts is imposed, and the flow partitioning between parallel channels is examined. Results of the numerical simulation of the influence of insulation imperfections on flow distribution and velocity profiles are presented. 9 refs., 6 figs.

Authors:
;  [1]
  1. Univ. of California, Los Angeles, CA (United States)
Publication Date:
OSTI Identifier:
447348
Report Number(s):
CONF-9606116-
Journal ID: FUSTE8; ISSN 0748-1896; TRN: 97:005320
Resource Type:
Journal Article
Journal Name:
Fusion Technology
Additional Journal Information:
Journal Volume: 30; Journal Issue: 3; Conference: Annual meeting of the American Nuclear Society (ANS), Reno, NV (United States), 16-20 Jun 1996; Other Information: PBD: 1996
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION; 30 DIRECT ENERGY CONVERSION; 36 MATERIALS SCIENCE; BREEDING BLANKETS; ELECTRICAL INSULATION; LIQUID METALS; COOLING SYSTEMS; MAGNETOHYDRODYNAMICS; FLUID FLOW; DUCTS; COATINGS; MAGNETIC FIELDS; ELECTRIC CONDUCTIVITY; MHD CHANNELS; THERMONUCLEAR REACTORS

Citation Formats

Gaizer, A A, and Abdou, M A. Effects of imperfect insulating coatings on the flow partitioning between parallel channels in self-cooled liquid metal blankets. United States: N. p., 1996. Web.
Gaizer, A A, & Abdou, M A. Effects of imperfect insulating coatings on the flow partitioning between parallel channels in self-cooled liquid metal blankets. United States.
Gaizer, A A, and Abdou, M A. 1996. "Effects of imperfect insulating coatings on the flow partitioning between parallel channels in self-cooled liquid metal blankets". United States.
@article{osti_447348,
title = {Effects of imperfect insulating coatings on the flow partitioning between parallel channels in self-cooled liquid metal blankets},
author = {Gaizer, A A and Abdou, M A},
abstractNote = {Fully developed liquid-metal flow in a system of three straight rectangular ducts is investigated. The ducts are electrically coupled by common conducting walls covered with an imperfect insulating layer. A numerical model of magnetohydrodynamic (MHD) flow in the system is described. Since no additional assumptions, such as in the core-flow solution, have been made, this model can be used for the analysis of MHD flow in parallel ducts with nearly perfect insulating coating. Any orientation of the applied uniform magnetic field is possible. Electrical conductivities of the dividing and exterior walls, and of the insulating layers in individual channels can be varied independently, as well as characteristics of insulating imperfections in each channel. A restriction of equal pressure gradients in all ducts is imposed, and the flow partitioning between parallel channels is examined. Results of the numerical simulation of the influence of insulation imperfections on flow distribution and velocity profiles are presented. 9 refs., 6 figs.},
doi = {},
url = {https://www.osti.gov/biblio/447348}, journal = {Fusion Technology},
number = 3,
volume = 30,
place = {United States},
year = {Tue Dec 31 00:00:00 EST 1996},
month = {Tue Dec 31 00:00:00 EST 1996}
}