Lattice Boltzmann simulation of heat transfer with phase change in saturated soil during freezing process
Lattice Boltzmann simulation of heat transfer with phase change in saturated soil during freezing process
复制标题
饱和土冻结过程中相变传热的格子玻尔兹曼模拟
DOI:
10.1080/10407790.2017.1400311
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发表时间:
2017-11
影响因子:
1
通讯作者:
Linfang Shen
中科院分区:
文献类型:
--
作者:
Zhiliang Wang;Libin Xin;Zemin Xu;Linfang Shen
ABSTRACT 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.
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