Insights and challenges of predicting concrete pumpability: A state-of-art review

S Yuan, Z Xu, J Liu - Journal of Building Engineering, 2024 - Elsevier
Concrete pumping technology is the most widely used method for concrete construction. To
avoid the issues of segregation and pipe blockage etc., this technology necessitates …

Particle migration in a flow of nanoparticle suspensions

Y Ding, D Wen - Powder Technology, 2005 - Elsevier
This paper is concerned with particle migration in pressure-driven laminar pipe flows of
relatively dilute suspensions of nanoparticles (nanofluids), one of the most frequently used …

Computational Investigation of Concrete Pipe Flow: Critical Review.

T Tavangar, M Hosseinpoor, A Yahia… - ACI Materials …, 2021 - search.ebscohost.com
The prediction of concrete pumpability is of particular interest to properly design pumping
circuits and select suitable pumps for successful processing of concrete. A critical review of …

Two-phase mixture model for nanofluid turbulent flow and heat transfer: Effect of heterogeneous distribution of nanoparticles

M Amani, P Amani, A Kasaeian, O Mahian… - Chemical Engineering …, 2017 - Elsevier
In this work, a two-phase mixture model for evaluation of flow and heat transfer performance
of SiO 2/water nanofluids under turbulent flow was proposed by considering the …

Experimental insights into concrete flow-regimes subject to shear-induced particle migration (SIPM) during pumping

S Fataei, E Secrieru, V Mechtcherine - Materials, 2020 - mdpi.com
In this paper, the authors have focused on shear-induced particle migration (SIPM), its effect
on concrete flow patterns, and lubricating layer formation during pumping. For this purpose …

On the difficulty of determining the apparent wall slip of highly concentrated suspensions in pressure driven flows: The accuracy of indirect methods and best practice

P Wilms, J Wieringa, T Blijdenstein… - Journal of Non …, 2022 - Elsevier
The indirect quantification of apparent wall slip of highly concentrated suspensions in
pressure driven flows is commonly performed using a Mooney analysis. To prevent poor fits …

Novel tri-viscous model to simulate pumping of flowable concrete through characterization of lubrication layer and plug zones

T Tavangar, M Hosseinpoor, A Yahia… - Cement and Concrete …, 2022 - Elsevier
In this study, computational fluid dynamics (CFD) was employed to simulate the pipe flow of
18 self-consolidating and four highly-workable concrete mixtures in a 30-m long pumping …

[PDF][PDF] A computational approach to estimating a lubricating layer in concrete pumping

SD Jo, CK Park, JH Jeong, SH Lee… - … materials and continua, 2012 - cdn.techscience.cn
When concrete is being pumped, a lubricating layer forms at the interface of the inner
concrete and the wall of the pipe. The lubricating layer is one of the most dominant factors in …

Effect of particle migration on flow and heat transfer characteristics of magnetic nanoparticle suspensions

M Bahiraei - Journal of Molecular Liquids, 2015 - Elsevier
Flow and heat transfer characteristics of the suspensions containing Fe 3 O 4 magnetic
nanoparticles have been evaluated in turbulent flow regime. The effects of particle migration …

Studying nanoparticle distribution in nanofluids considering the effective factors on particle migration and determination of phenomenological constants by Eulerian …

M Bahiraei - Advanced Powder Technology, 2015 - Elsevier
In this study, concentration distribution was obtained for nanofluid laminar flow in circular
pipe. The effects of viscosity gradient, shear rate and Brownian diffusion on particle …