Flow-Analysis of Screw-Extrusion in Three-Dimensional Concrete Printing (2024-01)¶
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Journal Article - Physics of Fluids, Vol. 36, Iss. 2
Abstract
Recent advances in three-dimensional concrete printing necessitated the detailed understanding of the operation and performance of screw extruders. This paper shows that the volumetric output rate can be approximated using the rotating barrel and stationary screw assumption (drag flow equation), which is used routinely in polymer melt extrusion calculations. Verification is provided by comparisons to experimental results available in the literature and to computer flow simulations for fluids with yield stress. Significant insight is obtained using fully three-dimensional simulations. This includes particle pathlines, which form “a helix within a helix,” axial pressure profiles, and the effect of yield stress, which is relatively small on the output rate but large on torque and power. The computer simulation also predicts unyielded flow zones in the extruder channel at low screw rotation speeds.
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12 References
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From Analytical Methods to Numerical Simulations:
A Process Engineering Toolbox for 3D Concrete Printing - Perrot Arnaud, Rangeard Damien, Nerella Venkatesh, Mechtcherine Viktor (2019-02)
Extrusion of Cement-Based Materials:
An Overview - Polychronopoulos Nickolas, Sarris Ioannis, Benos Lefteris, Vlachopoulos John (2023-09)
Pressure-Drop in Converging Flows in Three-Dimensional Printing of Concrete - Zhang Nan, Sanjayan Jay (2023-01)
Extrusion Nozzle Design and Print Parameter Selections for 3D Concrete Printing - Zhi Peng, Wu Yuching, Yang Qianfan, Kong Xiangrui et al. (2022-03)
Effect of Spiral Blade Geometry on 3D Printed Concrete Rheological Properties and Extrudability Using Discrete Event Modeling
BibTeX
@article{poly_sarr_vlac.2024.FAoSEiTDCP,
author = "Nickolas D. Polychronopoulos and Ioannis E. Sarris and John Vlachopoulos",
title = "Flow-Analysis of Screw-Extrusion in Three-Dimensional Concrete Printing",
doi = "10.1063/5.0193235",
year = "2024",
journal = "Physics of Fluids",
volume = "36",
number = "2",
}
Formatted Citation
N. D. Polychronopoulos, I. E. Sarris and J. Vlachopoulos, “Flow-Analysis of Screw-Extrusion in Three-Dimensional Concrete Printing”, Physics of Fluids, vol. 36, no. 2, 2024, doi: 10.1063/5.0193235.
Polychronopoulos, Nickolas D., Ioannis E. Sarris, and John Vlachopoulos. “Flow-Analysis of Screw-Extrusion in Three-Dimensional Concrete Printing”. Physics of Fluids 36, no. 2 (2024). https://doi.org/10.1063/5.0193235.