Hydrothermal coupling model of a riparian zone considering heterogeneous heat transfer of soil

被引：0

作者：

Zhang W. ^{[1
,2
]}

Shen Z. ^{[1
,3
]}

Ren J. ^{[4
]}

Xu L. ^{[3
]}

Zhou C. ^{[3
]}

Yang J. ^{[3
]}

机构：

[1] State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing

[2] College of Ocean Science and Engineering, Shanghai Maritime University, Shanghai

[3] College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing

[4] State Key Laboratory of Eco-Hydraulics in Northwest Arid Region, Xi'an University of Technology, Xi'an

来源：

Shuikexue Jinzhan/Advances in Water Science | 2022年 / 33卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Effective thermal conductivity model; Heterogeneous heat transfer; Hydrothermal coupling model; Riparian zone;

D O I：

10.14042/j.cnki.33.1309.2022.01.012

中图分类号：

学科分类号：

摘要：

To improve the current simulations of hydrothermal exchange in riparian zones that do not take into account heterogeneous heat transfer of soil, this paper constructs a hydrothermal coupling model of riparian zones that includes heterogeneous heat transfer of soil by introducing the soil effective thermal conductivity model on the basis of saturated-unsaturated seepage and porous medium heat transfer theories. This study uses COMSOL software to implement the new method and simulate the hydrothermal coupling model of a riparian zone for different effective thermal conductivity models; the new model is verified by comparing and analyzing prototype observation data of temperature and water level in a riparian zone. The results show that the new model can better reflect the hydrothermal exchange process in a riparian zone than the traditional method that does not consider the heterogeneous heat transfer of the soil. In addition, the simulation of the hydrothermal coupling model based on Johansen's effective thermal conductivity model performs the best, and the simulation results are consistent with previous experimental results. This study can provide technical support for in-depth study of hydrothermal exchange and pollutant migration processes in riparian zones. © 2022, Editorial Board of Advances in Water Science. All right reserved.

引用

页码：123 / 134

页数：11

共 31 条

[31] ZHANG W B, SHEN Z Z, REN J, Et al., Modeling and comparative analysis of a flow and heat coupling model of the riparian zone based on thermal conductivity empirical models, Journal of Hydrology, 582, (2020)

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