Applied Mathematics and Mechanics (English Edition) ›› 2021, Vol. 42 ›› Issue (4): 553-566.doi: https://doi.org/10.1007/s10483-021-2720-7

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Lattice Boltzmann simulation of phase change and heat transfer characteristics in the multi-layer deposition

Yanlin REN1, Zhaomiao LIU1,2, Yan PANG1,2, Xiang WANG1, Yuandi XU1   

  1. 1. College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing 100124, China;
    2. Beijing Key Laboratory of Advanced Manufacturing Technology, Beijing University of Technology, Beijing 100124, China
  • Received:2020-08-30 Revised:2021-01-03 Online:2021-04-01 Published:2021-03-23
  • Contact: Zhaomiao LIU E-mail:lzm@bjut.edu.cn
  • Supported by:
    Project supported by the Foundation for Advanced Research of Equipment (No. 61409230309)

Abstract: The metal droplets deposition method (MDDM) is a rapid prototyping technology, implemented via metallurgy bonding within droplets. The anisotropy of heat transfer and re-melting is caused by an asymmetric deposition process. A lattice Boltzmann method (LBM) model is established to predict the heat transfer and phase change in the multi-layer deposition. The prediction model is verified by the experimental temperature profiles in existing literature. The monitoring points are set to compare the temperature profiles, and decoupling analyze the heat transfer mechanism in different positions. The negative relationships between the re-molten volume of the temperature difference, as well as the influence of the dispositive position and the relative position of the adjacent component are observed and analyzed under the heat conduction. This work is helpful to choose the appropriate temperature conditions and the optimal dispositive method.

Key words: multi-layer deposition, phase change, heat transfer, lattice Boltzmann method (LBM)

2010 MSC Number: 

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