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Advances in Materials Science and Engineering
Volume 2018, Article ID 5436020, 8 pages
https://doi.org/10.1155/2018/5436020
Research Article

3D Simulation of Self-Compacting Concrete Flow Based on MRT-LBM

College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China

Correspondence should be addressed to Liu-Chao Qiu; nc.ude.uac@oahcuiluiq and Yu Han; ua.ude.liamwou@619hy

Received 21 June 2017; Accepted 2 November 2017; Published 28 January 2018

Academic Editor: Ying Li

Copyright © 2018 Liu-Chao Qiu and Yu Han. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A three-dimensional multiple-relaxation-time lattice Boltzmann method (MRT-LBM) with a D3Q27 discrete velocity model is applied for simulation of self-compacting concrete (SCC) flows. In the present study, the SCC is assumed as a non-Newtonian fluid, and a modified Herschel–Bulkley model is used as constitutive mode. The mass tracking algorithm was used for modeling the liquid-gas interface. Two numerical examples of the slump test and enhanced L-box test were performed, and the calculated results are compared with available experiments in literatures. The numerical results demonstrate the capability of the proposed MRT-LBM in modeling of self-compacting concrete flows.