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Simulation of Heat and Mass Transfer in a Grain Pile on the Basis of a 2D Irregular Pore Network

Pengxiao Chen1, Kai Huang1, 2, Fenghe Wang1, Weijun Xie1, Shuo Wei1, Deyong Yang1, *

1 College of Engineering, China Agricultural University, Beijing, China.
2 College of Engineering, Nanjing Agricultural University, Nanjing, China.

* Corresponding Author: Deyong Yang. Email: email.

(This article belongs to the Special Issue: EFD and Heat Transfer)

Fluid Dynamics & Materials Processing 2019, 15(4), 367-389. https://doi.org/10.32604/fdmp.2019.07762

Abstract

The so-called pore network model has great advantages in describing the process of heat and mass transfer in porous media. In order to construct a random two-dimensional (2D) irregular pore network model for an unconsolidated material, image processing technology was used to extract the required topological and geometric information from a 2D sample of soybean particles, and a dedicated algorithm was elaborated to merge some adjacent small pores. Based on the extracted information, a 2D pore network model including particle information was reconstructed and verified to reflect the pore structure of discrete particles. This method was used to reconstruct a random 2D irregular pore network model of wheat. Accordingly, a multi-scale heat and mass transfer model was implemented to simulate the drying of wheat. The simulation results were consistent with the experimental results, which indicates that the reconstructed irregular pore network model can effectively simulate the real pore structure inside unconsolidated porous media. The present approach may be regarded as the foundation for establishing in the future a three-dimensional pore network model and studying the heat and mass transfer process in a grain pile.

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Cite This Article

APA Style
Chen, P., Huang, K., Wang, F., Xie, W., Wei, S. et al. (2019). Simulation of heat and mass transfer in a grain pile on the basis of a 2D irregular pore network. Fluid Dynamics & Materials Processing, 15(4), 367-389. https://doi.org/10.32604/fdmp.2019.07762
Vancouver Style
Chen P, Huang K, Wang F, Xie W, Wei S, Yang D. Simulation of heat and mass transfer in a grain pile on the basis of a 2D irregular pore network. Fluid Dyn Mater Proc. 2019;15(4):367-389 https://doi.org/10.32604/fdmp.2019.07762
IEEE Style
P. Chen, K. Huang, F. Wang, W. Xie, S. Wei, and D. Yang, “Simulation of Heat and Mass Transfer in a Grain Pile on the Basis of a 2D Irregular Pore Network,” Fluid Dyn. Mater. Proc., vol. 15, no. 4, pp. 367-389, 2019. https://doi.org/10.32604/fdmp.2019.07762



cc Copyright © 2019 The Author(s). Published by Tech Science Press.
This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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