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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.v8.i3.20
pages 251-257

A Multiscale Approach to Numerical Modeling of Solidification

Mariusz Ciesielski
Institute of Matematics and Computer Science, Czestochowa University of Technology, 42-200 Czestochowa, Dabrowskiego 73, Poland

Краткое описание

In this paper the multiscale approach to numerical modeling of solidification on the micro/macro level is presented. Two kinds of meshes are used. The casting domain is covered by the mesh of regular macrocells, and in every macrocell the mesh of control volumes is generated. The control volumes correspond to the final shape of grains and they are approximated by Thiessen polygons (a 2D task), while their central points correspond to the initial positions of nuclei (generated in a random way). The changes of the temporary volumetric fraction of solid at the considered point from the casting domain results from the laws determining the nucleation and nuclei growth. In order to solve the problem the control volume method is applied. In the final part of the paper an example of computation is shown.


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