Electromagnetic control of heat transport within a rectangular channel filled with flowing liquid metal

Modestov, M.; Kolemen, E.; Fisher, A. E.; Hvasta, M. G.

doi:10.1088/1741-4326/aa8bf4

Title: Electromagnetic control of heat transport within a rectangular channel filled with flowing liquid metal

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Abstract

The behavior of free-surface, liquid-metal flows exposed to both magnetic fields and an injected electric current is investigated via experiment and numerical simulations. The purpose of this paper is to provide an experimental and theoretical proof-of-concept for enhanced thermal mixing within fast-flowing, free-surface, liquid-metal plasma facing components that could be used in next-generation fusion reactors. The enhanced hydrodynamic and thermal mixing induced by non-uniform current density near the electrodes appears to improve heat transfer through the thickness of the flowing metal. Also, the outflow heat flux profile is strongly affected by the impact of the J × B forces on flow velocity. The experimental results are compared to COMSOL simulations in order to lay the groundwork for future liquid-metal research.

Authors:

Modestov, M. ^[1]; Kolemen, E. ^[2]; Fisher, A. E. ^[2]; Hvasta, M. G. ^[2]

KTH Royal Inst. of Technology, Stockholm (Sweden). Nordic Inst. for Theoretical Physics (Nordita); Stockholm Univ. (Sweden); Princeton Univ., NJ (United States). Dept. of Mechanical and Aerospace Engineering
Princeton Univ., NJ (United States). Dept. of Mechanical and Aerospace Engineering

Publication Date:: Mon Nov 06 00:00:00 EST 2017

Research Org.:: Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)

Sponsoring Org.:: USDOE Laboratory Directed Research and Development (LDRD) Program

OSTI Identifier:: 1426197

Grant/Contract Number:: AC02-09CH11466; 637-2014-465

Resource Type:: Accepted Manuscript

Journal Name:: Nuclear Fusion

Additional Journal Information:: Journal Volume: 58; Journal Issue: 1; Journal ID: ISSN 0029-5515

Publisher:: IOP Science

Country of Publication:: United States

Language:: English

Subject:: 70 PLASMA PHYSICS AND FUSION TECHNOLOGY

Citation Formats


                    Modestov, M., Kolemen, E., Fisher, A. E., and Hvasta, M. G. Electromagnetic control of heat transport within a rectangular channel filled with flowing liquid metal.  United States: N. p., 2017. 
Web.  doi:10.1088/1741-4326/aa8bf4.

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                    Modestov, M., Kolemen, E., Fisher, A. E., & Hvasta, M. G. Electromagnetic control of heat transport within a rectangular channel filled with flowing liquid metal.  United States.  https://doi.org/10.1088/1741-4326/aa8bf4

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                    Modestov, M., Kolemen, E., Fisher, A. E., and Hvasta, M. G. Mon .  
"Electromagnetic control of heat transport within a rectangular channel filled with flowing liquid metal".  United States.  https://doi.org/10.1088/1741-4326/aa8bf4.  https://www.osti.gov/servlets/purl/1426197.

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@article{osti_1426197,

  title        = {Electromagnetic control of heat transport within a rectangular channel filled with flowing liquid metal},

  author       = {Modestov, M. and Kolemen, E. and Fisher, A. E. and Hvasta, M. G.},

  abstractNote = {The behavior of free-surface, liquid-metal flows exposed to both magnetic fields and an injected electric current is investigated via experiment and numerical simulations. The purpose of this paper is to provide an experimental and theoretical proof-of-concept for enhanced thermal mixing within fast-flowing, free-surface, liquid-metal plasma facing components that could be used in next-generation fusion reactors. The enhanced hydrodynamic and thermal mixing induced by non-uniform current density near the electrodes appears to improve heat transfer through the thickness of the flowing metal. Also, the outflow heat flux profile is strongly affected by the impact of the J × B forces on flow velocity. The experimental results are compared to COMSOL simulations in order to lay the groundwork for future liquid-metal research.},

  doi          = {10.1088/1741-4326/aa8bf4},

  journal      = {Nuclear Fusion},

  number       = 1,

  volume       = 58,

  place        = {United States},

  year         = {Mon Nov 06 00:00:00 EST 2017},

  month        = {Mon Nov 06 00:00:00 EST 2017}

}

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