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arXiv · 1511.08920

Computational Homogenization of Fresh Concrete Flow Around Reinforcing Bars

Filip Kolařík·Bořek Patzák·Jan Zeman
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Abstract

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.

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Filip Kolařík, Bořek Patzák, Jan Zeman. 2015-11-28. Computational Homogenization of Fresh Concrete Flow Around Reinforcing Bars. https://arxiv.org/abs/1511.08920

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