Effects of Viscosity on Pumping Concrete Behavior Using Computational Fluid Dynamics Method

被引：4

作者：

Cui, Wei ^{[1
]}

Tang, Qiu-Wei ^{[1
]}

Song, Hui-Fang ^{[1
]}

机构：

[1] Tianjin Univ, Sch Civil Engn, Tianjin, Peoples R China

来源：

ACI MATERIALS JOURNAL | 2021年 / 118卷 / 02期

关键词：

computational fluid dynamics (CFD); dense discrete phase model (DDPM); fresh concrete; pumpability; viscosity; PREDICTION; FLOW;

D O I：

10.14359/51729329

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This paper aims to find the effects of viscosity on concrete behavior in pipelines. Concrete was prepared according to ACI 304.2R-96. Experiments were conducted for measuring its workability by means of slump test. Fluidity and rheology measurements of fresh mortar were investigated. The concrete behavior in pipes was directly investigated using computational fluid dynamics (CFD) simulation, which is based on the Eulerian approach and the dense discrete phase model (DDPM). Concrete behavior including flow profiles, aggregate distributions, and migration was analyzed and discussed. It was observed that the flow characteristic varies from shear flow to plug flow with increased viscosity, and the aggregate distribution along the central axis is more homogeneous. Aggregate radial migration is more pronounced with increased shearing time, decreased viscosity, and enlarged size of aggregates. It was also found that concrete between 12 and 22 Pa.s (1.74 x 10(-3) and 3.19 x 10(-3) psi.s) is more suitable for pumping.

引用

页码：117 / 126

页数：10

共 50 条

[31] Numerical investigation of flow behavior at the lateral intake using Computational Fluid Dynamics (CFD)
Al-Zubaidy, Rana A.
Hilo, Ali N.
MATERIALS TODAY-PROCEEDINGS, 2022, 56 : 1914 - 1926
[32] Effects of septal deviation on the airflow characteristics: Using computational fluid dynamics models
Liu, Ting
Han, Demin
Wang, Jie
Tan, Jie
Zang, Hongrui
Wang, Tong
Li, Yunchuan
Cui, Shunjiu
ACTA OTO-LARYNGOLOGICA, 2012, 132 (03) : 290 - 298
[33] Study of inertial effects in coating die design using computational fluid dynamics
Gugliotti, DR
Gutoff, EB
Tangborn, A
IS&T 50TH ANNUAL CONFERENCE, FINAL PROGRAM AND PROCEEDINGS, 1997, : 485 - 487
[34] USING EXPERIMENTAL FLUID DYNAMICS AND COMPUTATIONAL FLUID DYNAMICS FOR EVALUATING PERIODIC MIXING
Bamberger, Judith Ann
Pease, Leonard F.
Recknagle, Kurtis P.
Enderlin, Carl W.
Minette, Michael J.
PROCEEDINGS OF THE ASME INTERNATIONAL MECHANICAL ENGINEERING CONGRESS AND EXPOSITION, 2018, VOL 7, 2019,
[35] THE UNSTEADY FLUID DYNAMICS OF A PAIR OF PITCHING AIRFOILS USING COMPUTATIONAL FLUID DYNAMICS
Amiralaei, M. R.
Alighanbari, H.
Hashemi, S. M.
PROCEEDINGS OF THE ASME INTERNATIONAL MECHANICAL ENGINEERING CONGRESS AND EXPOSITION - 2010, VOL 7, PTS A AND B, 2012, : 217 - 222
[36] TEACHING COMPUTATIONAL FLUID DYNAMICS USING MATLAB
Ghosh, Amitabha
Pantaleon, Carlos
PROCEEDINGS OF THE ASME INTERNATIONAL MECHANICAL ENGINEERING CONGRESS AND EXPOSITION, 2013, VOL 5, 2014,
[37] Effects of viscosity on the performance of Hydraulic Power Recovery Turbines (HPRTs) by the means of Computational Fluid Dynamics (CFD) simulations
Rossi, Mose
Comodi, Gabriele
Piacente, Nicola
Renzi, Massimiliano
ATI 2018 - 73RD CONFERENCE OF THE ITALIAN THERMAL MACHINES ENGINEERING ASSOCIATION, 2018, 148 : 170 - 177
[38] DESIGN OPTIMISATION USING COMPUTATIONAL FLUID DYNAMICS
Green, Johnathan
Naval Architect, 2023, : 50 - 53
[39] Stent Design Using Computational Fluid Dynamics
Seo, Taewon
Kim, Taedong
Barakat, Abdul
TRANSACTIONS OF THE KOREAN SOCIETY OF MECHANICAL ENGINEERS B, 2005, 29 (09) : 1042 - 1048
[40] Computational fluid dynamics modeling of post-liquefaction soil flow using the volume of fluid method
Yu Huang
Wuwei Mao
Hu Zheng
Guanghui Li
Bulletin of Engineering Geology and the Environment, 2012, 71 : 359 - 366

← 1 2 3 4 5 →