The One-Dimensional Flow Pressure Loss Correction Model Based on the Particle Flow through Concrete Bend
Source abstract
Abstract
The rheological behavior of concrete pumping in the bend section is complex. The existing conversion calculation for pumping pressure loss based on the straight pipe section often fails to meet engineering precision requirements. This paper develops a pressure loss correction model for a concrete pumping bend section based on a new one-dimensional flow model for the straight pipe section simulation of particle flow; the study analyzes the impact of parameters such as elbow shape and pumping flow rate on pressure loss. An equivalent conversion relationship between the bend section and the straight section is established. The comparison with the measured pressure values from the project shows that the relative error between the pressure loss values calculated by the correction model and the actual measurements is 15.8%.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Innovations in Concrete and Construction Materials · Fluid Dynamics Simulations and Interactions · Innovative concrete reinforcement materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Mechanical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
Zoomlion Heavy Industry Science and Technology Development, Changsha 410013, China
Funding
National Natural Science Foundation of the People’s Republic of China
References (26)
Show source-provided references
1. An overview on the effect of pumping on concrete properties10.1016/j.cemconcomp.2022.104501 ↗
2. Assessment and prediction of concrete flow and pumping pressure in pipeline10.1016/j.cemconcomp.2019.103495 ↗
3. Prediction of concrete pumping based on correlation between slump and rheological properties
4. A computational approach to estimating a lubricating layer in concrete pumping
5. An improved constitutive model for concentrated suspensions accounting for shear-induced particle migration rate dependence on particle radius10.1016/j.ijmultiphaseflow.2008.11.003 ↗
6. Lubrication layer properties during concrete pumping10.1016/j.cemconres.2012.11.001 ↗
7. Effect of the coarse aggregate size on pipe flow of pumped concrete10.1016/j.conbuildmat.2014.06.027 ↗
8. Prediction of concrete pumping: Part II-Analytical prediction and experimental verification
9. Design of concrete pumping circuit
10. Zhao, X., Gao, G., Wan, M., and Dai, J. (2024). One-Dimensional Modeling of the Pressure Loss in Concrete Pumping and Experimental Verification. Appl. Sci., 14.10.21203/rs.3.rs-3985578/v1 ↗
11. H, Y., C, C., and J, M. (2018). Engineering Fluid Mechanics, Southwest Jiaotong University Press.
12. Predicting the capacity of an off-road self-loading drum mixer with different concrete consistencies through three-dimensional fluid dynamics analysis10.1007/s40430-020-02464-6 ↗
13. Virtual Sliding Pipe Rheometer for estimating pumpability of concrete10.1016/j.conbuildmat.2018.03.003 ↗
14. Pressure Loss Prediction of Fresh Concrete Pumping Based on CFD Simulation
15. Simulation of Motion Behavior of Concrete in Pump Pipe by DEM10.1155/2021/3750589 ↗
16. Study on the Effect of Coarse Aggregate Volume Fraction on the Flow Behavior of Fresh Concrete via DEM10.1016/j.proeng.2015.01.319 ↗
17. Optimization of fresh concrete pumping pressure loss with CFD-DEM approach10.1016/j.conbuildmat.2020.122204 ↗
18. Research on Transient Multiphase Flow Field Characteristics Based on Fluid-structure Interaction10.3901/JME.2023.16.406 ↗
19. Cham, F. (2020). Fresh Concrete Pumping Arrest Investigation for Thixotropy by a CFD Modelling Approach, Springer International Publishing.
20. Liao, Y., Cheng, K., Sun, W., and Zhao, Y. (2023). Study on pumping wear characteristics of concrete pipeline based on CFD-DEM coupling. Sci. Rep., 13.10.1038/s41598-023-42995-1 ↗
21. CFD-DEM simulation research on optimization of spatial attitude of concrete pumping boom based on evaluation of minimum pressure loss10.1016/j.powtec.2022.117365 ↗
22. Pumpability of concrete and pumping pressure in pipelines
23. (2011). Technical Specification for Construction of Concrete Pumping (Standard No. JGJ/T 10).
24. Experimental study for joint leakage process of tunnel lining and particle flow numerical simulation10.1016/j.engfailanal.2022.106348 ↗
25. The voidage function for fluid-particle interaction systems10.1016/0301-9322(94)90011-6 ↗
26. Test and Discrete Element Simulation Study on Concrete Pumping Pressure Loss in Vertical Elbow