Modeling of fresh concrete flow

被引：20

作者：

Patzak, B. ^{[1
]}

Bittnar, Z. ^{[1
]}

机构：

[1] Czech Tech Univ, Fac Civil Engn, Prague 16629, Czech Republic

来源：

COMPUTERS & STRUCTURES | 2009年 / 87卷 / 15-16期

关键词：

Fresh concrete flow; Non-newtonian flow; Interface-capturing; NAVIER-STOKES EQUATIONS; MOVING BOUNDARIES; INCOMPRESSIBLE-FLOW; VOLUME TRACKING; ELEMENT; INTERFACES; COMPUTATIONS; FORMULATIONS;

D O I：

10.1016/j.compstruc.2008.04.015

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

This paper focuses on the modeling of fresh concrete flow. Concrete that is not properly casted or consolidated may have defects, such as air voids, honeycombs, and aggregate segregation. The modeling of fresh concrete flow can significantly contribute to the durability and strength of a structure and it is necessary for design optimization of casting procedure. The fresh concrete is considered as a non-Newtonian fluid. The Bingham model is used as constitutive model, with the yield stress and plastic viscosity as parameters. An interface-capturing approach is used to track the position of a free surface. (C) 2008 Civil-Comp Ltd and Elsevier Ltd. All rights reserved.

引用

页码：962 / 969

页数：8

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