Lattice Boltzmann simulation of heat transfer with phase change in saturated soil during freezing process

被引：7
|
作者：
Wang, Zhiliang [1 ]
Xin, Libin [1 ]
Xu, Zemin [1 ]
Shen, Linfang [1 ]
机构：
[1] Kunming Univ Sci & Technol, Fac Civil Engn & Mech, Kunming 650500, Yunnan, Peoples R China
来源：
NUMERICAL HEAT TRANSFER PART B-FUNDAMENTALS | 2017年 / 72卷 / 05期
基金：
中国国家自然科学基金;
关键词：
MASS-TRANSFER; MODEL; CONDUCTIVITY; PERMEABILITY; CONVECTION;
D O I：
10.1080/10407790.2017.1400311
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
A lattice Boltzmann model is presented for simulating heat transfer with phase change in saturated soil. The model includes a quartet structure generation set for creating soil structure, double distribution functions for simulating temperature field evolution of soil particles and water, respectively, and an enthalpy-based method for tracing phase interface. The model is validated by two cases with analytical solutions. Then, we investigate the influence of porosity on freezing process in saturated sandy loam soil. The results demonstrate that porosity is the predominant factor when the location is far from the cold source; otherwise, thermal gradient is more important.
引用
收藏
页码：361 / 376
页数：16
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