Hybrid parallel approach to homogenization of transport processes in masonry
| Autor: | Tomáš Koudelka, Tomáš Krejčí, Michal Šejnoha, Jaroslav Kruis |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Master processor
Thin layers business.industry Computer science General Engineering Mechanical engineering 02 engineering and technology Mixed finite element method Masonry 01 natural sciences Homogenization (chemistry) Finite element method 010101 applied mathematics 020303 mechanical engineering & transports 0203 mechanical engineering 0101 mathematics Mortar business Software |
| Zdroj: | Advances in Engineering Software. 113:25-33 |
| ISSN: | 0965-9978 |
| DOI: | 10.1016/j.advengsoft.2016.08.009 |
| Popis: | Numerical simulations of transport processes, e.g., heat and moisture transport, in heterogeneous masonry structures performed on single processor computers are very time consuming. The classical description by the finite element method leads to enormous numbers of degrees of freedom. It is caused by the fact that there are relatively thin layers of mortar in contrary to large bricks or stones. The mortar and stones have very different material parameters and the finite element mesh has to be able to describe the temperature and moisture fields in the thin layers of mortar and in their vicinity. An application of a multi-scale approach in connection with parallel computing can be successfully exploited. The whole structure is described by a reasonably coarse finite element mesh, called the macro-scale problem, and the material parameters are obtained from the lower-level problems, called the meso-scale problem, by a homogenization procedure. In this procedure, the macro-problem is assigned to the master processor and the meso-scale problems belong to the slave processors. This proposed approach is called hybrid parallel method. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect