干旱区生态环境知识资源中心(Arid): Development of the Hydrus-1D freezing module and its application in simulating the coupled movement of water, vapor, and heat

Arid

DOI	10.1016/j.jhydrol.2021.126250
	Development of the Hydrus-1D freezing module and its application in simulating the coupled movement of water, vapor, and heat
	Zheng, Ce; Simunek, Jiri; Zhao, Ying; Lu, Yudong; Liu, Xiuhua; Shi, Changchun; Li, Huanhuan; Yu, Lianyu; Zeng, Yijian; Su, Zhongbo
通讯作者	Liu, XH (corresponding author), Changan Univ, Sch Water & Environm, Xian 710064, Peoples R China.
来源期刊	JOURNAL OF HYDROLOGY
ISSN	0022-1694
EISSN	1879-2707
出版年	2021
卷号	598
英文摘要	In cold regions, freeze-thaw cycles play a critical role in many engineering and agricultural applications and cause soil water flow and heat transport studies to be much more complicated due to phase changes involved. A fully coupled numerical module for simulating the simultaneous movement of water, vapor, and heat during freezing-thawing periods was developed and incorporated in the Hydrus-1D software in this study. To avoid numerical instabilities caused by a sudden increase in the apparent heat capacity during a phase change, a new approach based on the available energy concept was adopted to adjust soil temperature when the freezing temperature is reached. The proposed freezing module's performance was then validated using experimental data collected at three field sites with typical seasonal freezing/thawing processes. Results showed that the model could efficiently obtain a convergent solution and that simulated soil moisture and temperature variations captured the observed data well. Driven by soil matric potential and temperature gradients, both liquid water and water vapor flowed towards the freezing front. The isothermal liquid flux was the most significant component of overall flow in most soil depths except in the frozen layer, where it decreased by 1-5 orders of magnitude from values before freezing. Instead, the thermal vapor flux was the dominant moisture transfer mechanism in the frozen layer and contributed about 10% to the ice formation. These results indicate that the model, which considers the coupled movement of water, vapor, and heat, can better describe the physical mechanisms of the hydrological cycle in the vadose zone during the freezing-thawing periods.
英文关键词	Freeze-thaw process Unfrozen water content Soil temperature Vapor flow Hydrus-1D
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000661813200084
WOS关键词	FROZEN SOIL ; LIQUID WATER ; HYDRAULIC CONDUCTIVITY ; NUMERICAL-SOLUTION ; THAWING PROCESSES ; MODEL ; TRANSPORT ; FLOW ; EVAPORATION ; DESERT
WOS类目	Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Engineering ; Geology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/350913
作者单位	[Zheng, Ce; Lu, Yudong; Liu, Xiuhua; Li, Huanhuan] Changan Univ, Sch Water & Environm, Key Lab Subsurface Hydrol & Ecol Effects Arid Reg, Minist Educ, Xian 710064, Peoples R China; [Zheng, Ce; Simunek, Jiri] Univ Calif Riverside, Dept Environm Sci, Riverside, CA 92521 USA; [Zhao, Ying] Ludong Univ, Coll Resources & Environm Engn, Yantai 264025, Peoples R China; [Liu, Xiuhua] Changan Univ, Shaanxi Key Lab Land Consolidat, Xian 710064, Peoples R China; [Shi, Changchun] China State Long Term Observat & Res Stn Mu Us De, Yulin 719000, Peoples R China; [Yu, Lianyu; Zeng, Yijian; Su, Zhongbo] Univ Twente, Fac Geoinformat Sci & Earth Observat ITC, NL-7514 AE Enschede, Netherlands
推荐引用方式 GB/T 7714	Zheng, Ce,Simunek, Jiri,Zhao, Ying,et al. Development of the Hydrus-1D freezing module and its application in simulating the coupled movement of water, vapor, and heat[J],2021,598.
APA	Zheng, Ce.,Simunek, Jiri.,Zhao, Ying.,Lu, Yudong.,Liu, Xiuhua.,...&Su, Zhongbo.(2021).Development of the Hydrus-1D freezing module and its application in simulating the coupled movement of water, vapor, and heat.JOURNAL OF HYDROLOGY,598.
MLA	Zheng, Ce,et al."Development of the Hydrus-1D freezing module and its application in simulating the coupled movement of water, vapor, and heat".JOURNAL OF HYDROLOGY 598(2021).