SIMULATING THE BEHAVIOUR OF SELF COMPACTING CONCRETE WITH COMPUTITIONAL FLUID DYNAMICS

Year 2018, Volume: 20 Issue: 59, 449 - 460, 01.05.2018

Cenk Karakurt Ahmet Ozan Çelik , Volkan Kiriççi Ethem Özyaşar Cem Yılmazer

Abstract

Self-compacting concrete (SCC) is one of the latest generation special types of concrete that has been achieved through the development of concrete technologies to reduce water chemical additives. This work has aimed at numerically modeling the flow behavior of various design mixtures of fresh SCC features of which were obtained experimentally. Modeling was done for homogeneous fluid assumption of SCC in V-funnel, Lbox and using the data obtained from the rheometer test fluid dynamics. The validated Computational Fluid Dynamics (CFD) model obtained in this fashion will enable monitoring flow behavior due to geometry, otherwise not possible to be detected through standard laboratory tests

Keywords

Self compacting concrete, Workability, Bingham fluid, Particle tracking model, Computational fluid dynamics

KENDİLİĞİNDEN YERLEŞEN BETON DAVRANIŞININ HESAPLAMALI AKIŞKANLAR DİNAMİĞİ İLE BENZETİMİ

Abstract

Temel olarak Newtonyen olmayan akışkan akışı Bingham tipi model ile açıklanmaktadır. Bu yöntemle Deeb vd., lifsiz KYB akışı sırasında Lagrange yaklaşımı temeline dayanan, sayısal ağ gerektirmeyen bir nümerik yöntem olan yumuşatılmış parçacık hidrodinamiği (Smoothed Particle Hydrodynamics) metodunu kullanarak üç boyutlu benzetim agregaların (8 mm ve daha büyük) dağılımı üzerine odaklanmışlardır [10]

Keywords

Kendiliğinden yerleşen beton, İşlenebilirlik, Bingham akışkanı, Parçacık taşınım modeli, Hesaplamalı akışkanlar dinamiği

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