- Tytuł:
- Minimal kinematic boundary conditions for computational homogenization of the permeability coefficient
- Autorzy:
- Wojciechowski, M.
- Powiązania:
- https://bibliotekanauki.pl/articles/387344.pdf
- Data publikacji:
- 2017
- Wydawca:
- Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
- Tematy:
-
computational homogenization
permeability
RVE
minimal kinematic boundary conditions - Opis:
- In the paper, computational homogenization approach is used for recognizing the macroscopic permeability from the microscopic representative volume element (RVE). Flow of water, at both macro and micro level, is assumed to be ruled by Darcy law. A special averaging constraint is used for numerical flow analysis in RVE, which allows to apply macroscopic pressure gradient without the necessity to use directly Dirichlet or Neumann boundary conditions. This approach allows arbitrarily shaped representative volumes and eliminates undesirable boundary effects. Generated effective permeability takes into account the structuring effects, what is an advantage over other homogenization methods, like self-consistent one.
- Źródło:
-
Acta Mechanica et Automatica; 2017, 11, 3; 199-203
1898-4088
2300-5319 - Pojawia się w:
- Acta Mechanica et Automatica
- Dostawca treści:
- Biblioteka Nauki