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International Conference on 50 years of the development of grid-characteristic method

GCM50 2018: Smart Modeling for Engineering Systems pp 41–51Cite as

Numerical Simulation of Tungsten Melting Under Fusion Reactor-Relevant High-Power Pulsed Heating

Part of the Smart Innovation, Systems and Technologies book series (SIST,volume 133)

Abstract

Surface melting of tungsten under exposure to a pulsed electron beam was simulated numerically, the evaporation process taken into account. The calculation is based on the experimental time dependence of the total beam power. The model of the tungsten heating process is based on solving the two-phase Stefan problem. The position of the phase boundary depends on discontinuous nonlinear coefficients. The aim of the study is to provide a detailed resolution of the heat flow deep into the material with a fine spatial grid step. As compared with the size of the tungsten plate, the heating depth is very small. The problem statement under consideration is multiscale. Further expansion of the model involves gas dynamics equations to simulate the dynamics of the liquid and gaseous phases of the metal. Two approaches to solving the equation for temperature are considered: the implicit run method and the explicitly solvable Konovalov-Popov model. The results of calculations correlate with the experimental data obtained at the experimental stand Beam of Electrons for materials Test Applications (BETA) at Budker Institute of Nuclear Physics (BINP) of the SB RAS.

Keywords

  • Numerical simulation
  • Pulsed heating
  • Melting

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Acknowledgements

The problem statement the experimental data were supported by the Russian Science Foundation (project № 17-79-20203). Discrete models and computational algorithms were conducted within the framework of the budget project 0315-2016-0009 for ICMMG of the SB RAS.

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Authors and Affiliations

  1. Novosibirsk State University, 2 Pirogova ul., Novosibirsk, 630090, Russian Federation

    Galina G. Lazareva, Aleksey S. Arakcheev, Aleksey A. Vasilyev & Anastasia G. Maksimova

  2. Novosibirsk State Technical University, 20 prosp. K. Marksa, Novosibirsk, 630073, Russian Federation

    Galina G. Lazareva & Aleksey S. Arakcheev

  3. Institute of Computational Mathematics and Mathematical Geophysics of the SB RAS, 6 prosp. Akademika Lavrentjeva, Novosibirsk-90, Akademgorodok, 630090, Russian Federation

    Galina G. Lazareva & Anastasia G. Maksimova

  4. Budker Institute of Nuclear Physics of the SB RAS, 11 prosp. Akademika Lavrentjeva, Novosibirsk-90, Akademgorodok, 630090, Russian Federation

    Aleksey S. Arakcheev, Aleksey A. Vasilyev & Anastasia G. Maksimova

Authors
  1. Galina G. Lazareva
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  2. Aleksey S. Arakcheev
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  3. Aleksey A. Vasilyev
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  4. Anastasia G. Maksimova
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Corresponding author

Correspondence to Galina G. Lazareva .

Editor information

Editors and Affiliations

  1. Department of Computer Science and Numerical Mathematics, Moscow Institute of Physics and Technology, Dolgoprudny, The Moscow Area, Russia

    Prof. Igor B. Petrov

  2. Department of Applied Computational Geophysics, Moscow Institute of Physics and Technology, Dolgoprudny, The Moscow Area, Russia

    Dr. Alena V. Favorskaya

  3. Institute of Informatics and Telecommunications, Reshetnev Siberian State University of Science and Technology, Krasnoyarsk, Russia

    Dr. Margarita N. Favorskaya

  4. Department of Computational Physics, Moscow Institute of Physics and Technology, Dolgoprudny, The Moscow Area, Russia

    Dr. Sergey S. Simakov

  5. Faculty of Engineering and Information Technology, Centre for Artificial Intelligence, University of Technology, Sydney, NSW, Australia

    Prof. Dr. Lakhmi C. Jain

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Lazareva, G.G., Arakcheev, A.S., Vasilyev, A.A., Maksimova, A.G. (2019). Numerical Simulation of Tungsten Melting Under Fusion Reactor-Relevant High-Power Pulsed Heating. In: Petrov, I., Favorskaya, A., Favorskaya, M., Simakov, S., Jain, L. (eds) Smart Modeling for Engineering Systems. GCM50 2018. Smart Innovation, Systems and Technologies, vol 133. Springer, Cham. https://doi.org/10.1007/978-3-030-06228-6_5

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