Parallel algorithm for calculating the dynamics of the electron beam current distribution during pulsed heating of a metal target

Speedup and efficiency of two parallel algorithms for calculating the dynamics of the current distribution when the surface of a tungsten sample is heated by an electron beam pulse are presented. The algorithms are implemented using OpenMP technology. A special case of axial symmetry without taking into account electric driving forces is considered. The temperature in the sample, calculated on the basis of the two-phase Stefan problem, is necessary for solving electrodynamic equations. To implement them, the methods of Jacobi and the successive over-relaxation methods were used. Pipelining is used to parallelize the successive over-relaxation algorithm. The current is considered as a possible source of rotation of the substance, which is observed in the experiment. © 2021 Institute of Physics Publishing. All rights reserved.

Authors
Lazareva G. 1, 2 , Korneev V.3 , Maksimova A.2, 3 , Arakcheev A.4, 5
Conference proceedings
Journal of Physics: Conference Series
Publisher
Institute of Physics Publishing
Number of issue
1
Language
English
Status
Published
DOI
10.1088/1742-6596/2028/1/012009
Number
012009
Volume
2028
Year
2021
Organizations
  • 1 Peoples’ Friendship University of Russia (RUDN University), 6, Miklukho-Maklaya str., Moscow, 117198, Russian Federation
  • 2 Novosibirsk State University, 1, Pirogova str., Novosibirsk, 630090, Russian Federation
  • 3 Institute of Computational Mathematics and Mathematical Geophysics SB RAS, 6, Ac. Lavrentieva Pr., Novosibirsk, 630090, Russian Federation
  • 4 Budker Institute of Nuclear Physics SB RAS, 11, Ac. Lavrentieva Pr., Novosibirsk, 630090, Russian Federation
  • 5 Novosibirsk State Technical University, 20, Prospekt K. Marksa, Novosibirsk, 630073, Russian Federation
Keywords
Electric current distribution measurement; Electron beams; Parallel algorithms; Axial symmetry; Currents distributions; Driving forces; Electrodynamic equations; Electron beam pulse; Electron-beam current; Metal target; Pulsed heating; Successive over relaxation methods; Two-phase Stefan problem; Application programming interfaces (API)
Date of creation
16.12.2021
Date of change
16.12.2021
Short link
https://repository.rudn.ru/en/records/article/record/76135/
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