Computational Homogenization of Fresh Concrete Flow Around Reinforcing Bars

Autor:	Kolařík, Filip, Patzák, Bořek, Zeman, Jan
Rok vydání:	2015
Předmět:	Computer Science - Computational Engineering Finance and Science Physics - Fluid Dynamics
Druh dokumentu:	Working Paper
Popis:	Motivated by casting of fresh concrete in reinforced concrete structures, we introduce a numerical model of a steady-state non-Newtonian fluid flow through a porous domain. Our approach combines homogenization techniques to represent the reinforced domain by the Darcy law with an interface coupling of the Stokes and Darcy flows through the Beavers-Joseph-Saffman conditions. The ensuing two-scale problem is solved by the Finite Element Method with consistent linearization and the results obtained from the homogenization approach are verified against fully resolved direct numerical simulations. Comment: 23 pages, 15 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1511.08920 Zobrazit plný text záznamu View this record from Arxiv