Simulation of Solute Transport under Changing Gradient of Water Table
Abstract
:1. Introduction
2. Research Methodology
2.1. Analytical Model
2.2. Materials and Method
2.2.1. Experimental Materials and Equipment
2.2.2. Experimental Methods
- 1.
- Determination of hydraulic conductivity and porosity
- 2.
- Determination of gradient of water table
- 3.
- Determination of tracer concentration and route of tracer transport
2.3. Numerical Model
3. Results
3.1. Changes in the Gradient of Water Table in the Absence of Precipitation
3.2. Changes in the Gradient of Water Table with Precipitation
3.3. Simulation of Tracer Transport Routes
4. Discussion
5. Conclusions
- (1)
- Precipitation did have an impact on the gradient of the water table within a specific region. The gradient of the water table barely changed over time without precipitation.
- (2)
- The changing gradient of the water table had a large bearing on the route of the tracer transport. The tracer was mainly transported along the flow direction along the sandy trough. The stable water table hardly had any impact on the route of the tracer transport. As the gradient of the water table changed dramatically with the influence of precipitation, the route of the tracer changed correspondingly.
- (3)
- For future experiments, by shortening the time interval for collecting data to determine the changes in the gradient of the water table using water level loggers, the accuracy of the model in simulating the route of solute transport in an aquifer could be improved.
Author Contributions
Funding
Data Availability Statement
Acknowledgments
Conflicts of Interest
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2000 | 72,000 | 39% |
1.5 | 12 | 0.4445 |
Vertex Element Number | Boundary Element Number | Number of Element | Minimum Cell Mass |
---|---|---|---|
8 | 171 | 2425 | 0.1797 |
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Dou, L.; Gao, Y.; Zhao, X.; Shi, J.; Zhou, Z.; Li, Z.; Gong, P. Simulation of Solute Transport under Changing Gradient of Water Table. Water 2023, 15, 3187. https://doi.org/10.3390/w15183187
Dou L, Gao Y, Zhao X, Shi J, Zhou Z, Li Z, Gong P. Simulation of Solute Transport under Changing Gradient of Water Table. Water. 2023; 15(18):3187. https://doi.org/10.3390/w15183187
Chicago/Turabian StyleDou, Liuyuan, Yuan Gao, Xianju Zhao, Jianyu Shi, Zikai Zhou, Ziwei Li, and Ping Gong. 2023. "Simulation of Solute Transport under Changing Gradient of Water Table" Water 15, no. 18: 3187. https://doi.org/10.3390/w15183187