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Портал Begell Электронная Бибилиотека e-Книги Журналы Справочники и Сборники статей Коллекции
International Journal for Multiscale Computational Engineering
Импакт фактор: 1.016 5-летний Импакт фактор: 1.194 SJR: 0.554 SNIP: 0.68 CiteScore™: 1.18

ISSN Печать: 1543-1649
ISSN Онлайн: 1940-4352

Выпуски:
Том 17, 2019 Том 16, 2018 Том 15, 2017 Том 14, 2016 Том 13, 2015 Том 12, 2014 Том 11, 2013 Том 10, 2012 Том 9, 2011 Том 8, 2010 Том 7, 2009 Том 6, 2008 Том 5, 2007 Том 4, 2006 Том 3, 2005 Том 2, 2004 Том 1, 2003

International Journal for Multiscale Computational Engineering

DOI: 10.1615/IntJMultCompEng.2017020480
pages 395-411

ANALYSIS OF THERMAL PROCESSES OCCURRING IN THE MICRODOMAIN SUBJECTED TO THE ULTRASHORT LASER PULSE USING THE AXISYMMETRIC TWO-TEMPERATURE MODEL

Ewa Majchrzak
Institute of Computational Mechanics and Engineering, Silesian University of Technology, ul. Konarskiego 18a, 44-100 Gliwice, Poland
Jolanta Dziatkiewicz
Faculty of Mechanical Engineering, Institute of Computational Mechanics and Engineering, Silesian University of Technology, Poland
Lukasz Turchan
Faculty of Mechanical Engineering, Institute of Computational Mechanics and Engineering, Silesian University of Technology, Poland

Краткое описание

An axisymmetric microdomain subjected to the ultrashort laser pulse is considered. The two-temperature hyperbolic model, together with the isothermal solid–liquid and liquid–vapor phase changes, is presented. This model consists of six highly nonlinear equations. These equations describe both the electrons and lattice heat fluxes in the radial and axial directions as well as the electrons and lattice temperatures. To solve these equations supplemented by appropriate boundary and initial conditions, the finite difference method with staggered grid is proposed. The algorithm contains the procedures which take into account the phase changes occurring at the constant temperatures. In the final part of the paper the results of computations are presented.


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