Open AccessCalculation of the expansion dynamics of evaporated tungsten under the action of a laser pulse
Author(s) -
A. S. Arakcheev,
Г. Г. Лазарева,
A. G. Maksimova,
В. А. Попов,
N. E. Ivashin
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1640/1/012007
Subject(s) - mechanics , tungsten , penetration (warfare) , materials science , laser , surface (topology) , flow (mathematics) , dynamics (music) , boundary value problem , optics , mathematics , physics , mathematical analysis , geometry , operations research , acoustics , metallurgy
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.