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Open AccessArticle

An Improved Multi-Relaxation Time Lattice Boltzmann Method for the Non-Newtonian Influence of the Yielding Fluid Flow in Cement-3D Printing

by 1,2,*, 1,2,*, 1,2, 1,2, 1 and 3
1
School of Mechanical Engineering, Nantong Institute of Technology, Nantong 226002, China
2
Jiangsu Key Laboratory of 3D Printing Equipment and Application Technology, Nantong 226002, China
3
College of Mechanical Engineering, Yangzhou University, Yangzhou 225127, China
*
Authors to whom correspondence should be addressed.
Materials 2018, 11(11), 2342; https://doi.org/10.3390/ma11112342
Received: 5 November 2018 / Revised: 15 November 2018 / Accepted: 19 November 2018 / Published: 21 November 2018
The multi-relaxation time lattice Boltzmann method (MRT-LBM) has an excellent performance in dealing with the complex flow in many different areas. According to the specific behavior of the fluids, it also has some shortcomings when applied to some special flow like as the non-Newtonian flow. In Cement-3D printing, the fluids always exhibit according to the yielding behavior. When using the standard MRT-LBM, the simulation maybe divergent. In order to solve the problem, this work presents an improved MRT-LBM considering the non-Newtonian effect as a special forcing term to ensure the stable and accurate simulation. Finally, the Poiseuille flow was used to validate the feasibility of the proposed method. View Full-Text
Keywords: Cement-3D printing; MRT-LBM; yielding fluids; forcing term; non-Newtonian effect Cement-3D printing; MRT-LBM; yielding fluids; forcing term; non-Newtonian effect
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MDPI and ACS Style

Huang, T.; Gu, H.; Zhang, J.; Li, B.; Sun, J.; Wu, W. An Improved Multi-Relaxation Time Lattice Boltzmann Method for the Non-Newtonian Influence of the Yielding Fluid Flow in Cement-3D Printing. Materials 2018, 11, 2342. https://doi.org/10.3390/ma11112342

AMA Style

Huang T, Gu H, Zhang J, Li B, Sun J, Wu W. An Improved Multi-Relaxation Time Lattice Boltzmann Method for the Non-Newtonian Influence of the Yielding Fluid Flow in Cement-3D Printing. Materials. 2018; 11(11):2342. https://doi.org/10.3390/ma11112342

Chicago/Turabian Style

Huang, Tiancheng; Gu, Hai; Zhang, Jie; Li, Bin; Sun, Jianhua; Wu, Weiwei. 2018. "An Improved Multi-Relaxation Time Lattice Boltzmann Method for the Non-Newtonian Influence of the Yielding Fluid Flow in Cement-3D Printing" Materials 11, no. 11: 2342. https://doi.org/10.3390/ma11112342

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