Calculation of the expansion dynamics of evaporated tungsten under the action of a laser pulse

The paper is devoted to the numerical implementation of a model of the dynamics of the tungsten vapors flow evaporating from the sample surface. To calculate the speed and mass flow rate of the substance evaporating from the sample surface, a system of gas dynamics equations is numerically solved. The boundary conditions for the gas velocity and density on the heated surface have a great influence on the solution of the problem. Boundary conditions for temperature are obtained as a result of solving the two-phase Stefan problem in a cross-section of the sample. The aim of the study is to model the erosion of the sample surface and penetration of heat flow into the material. © Published under licence by IOP Publishing Ltd.

Authors
Arakcheev A.S.1, 4 , Lazareva G.G. 4, 2, 3 , Maksimova A.G.3, 5 , Popov V.A. 1, 3 , Ivashin N.E.3
Conference proceedings
Journal of Physics: Conference Series
Publisher
Institute of Physics Publishing
Number of issue
1
Language
English
Status
Published
DOI
10.1088/1742-6596/1640/1/012007
Number
012007
Volume
1640
Year
2020
Organizations
  • 1 Budker Institute of Nuclear Physics Sb Ras 11, Ac. Lavrentieva Pr., Novosibirsk, 630090, Russian Federation
  • 2 Peoples' Friendship University of Russia (RUDN University) 6, Miklukho-Maklaya str., Moscow, 117198, Russian Federation
  • 3 Novosibirsk State University, 1 Pirogova str., Novosibirsk, 630090, Russian Federation
  • 4 Novosibirsk State Technical University, 20 Prospekt K. Marksa, Novosibirsk, 630073, Russian Federation
  • 5 Institute of Computational Mathematics and Mathematical Geophysics Sb Ras, 6 Ac. Lavrentieva Pr., Novosibirsk, 630090, Russian Federation
Keywords
Boundary conditions; Density of gases; Gas dynamics; Numerical models; Tungsten; Expansion dynamics; Gas dynamics equations; Gas velocity; Heated surfaces; Mass flow rate; Numerical implementation; Sample surface; Two-phase Stefan problem; Magnetohydrodynamics
Date of creation
20.04.2021
Date of change
20.04.2021
Short link
https://repository.rudn.ru/en/records/article/record/71764/
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