地下水观测井井筒效应的多场耦合数值模拟

徐亚; 薛祥山; 刘玉强; 刘景财; 董路

doi:10.3799/dqkx.2014.117

Volume 39 Issue 9

Sep. 2014

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Xu Ya, Xue Xiangshan, Liu Yuqiang, Liu Jingcai, Lu Dong, 2014. A Coupled Darcy-Brinkman-NS Simultation Model of Wellbore Effect of an Monitor Well. Earth Science, 39(9): 1349-1356. doi: 10.3799/dqkx.2014.117

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Xu Ya, Xue Xiangshan, Liu Yuqiang, Liu Jingcai, Lu Dong, 2014. A Coupled Darcy-Brinkman-NS Simultation Model of Wellbore Effect of an Monitor Well. Earth Science, 39(9): 1349-1356. doi: 10.3799/dqkx.2014.117

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A Coupled Darcy-Brinkman-NS Simultation Model of Wellbore Effect of an Monitor Well

doi: 10.3799/dqkx.2014.117

1.
Institute of Environmental Engineering Technology, Chinese Research Academy of Environment Sciences, Beijing 100012, China
2.
Tsinghua Holdings Human Settlement Environment Institute Co., Ltd., Beijing 100085, China

Received Date: 2014-01-05
Publish Date: 2014-09-01

Abstract

Abstract

In this paper, three different flow equations, namely, Darcy law, Brinkman equation and Navier-Stoke equation, are employed to simulate the water movement with different flow conditions within and around the wellbore in a confined aquifer. Based on the principles of continuity, three different flow equations are coupled. The coupled model is used to simulate the impact of wellbore in aquifer on the head distribution and water movement. Results indicate that the influence of wellbore increases with the strength of three-dimensional flow and wellbore diameter. In addition, being compared with the sandy soil aquifer, wellbore effect is more obvious in clay or similar aquifers with lower permeability and smaller storage coefficient. By conducting parameter sensitivity analysis, it also can be found that the sensitivity ratio differs in different value zones for the same parameter, while for different parameters, wellbore effect is more sensitive to well diameter than other parameters.
- mathematical model,
- wellbore effect,
- monitor well,
- data bias,
- underground water

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References

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A Coupled Darcy-Brinkman-NS Simultation Model of Wellbore Effect of an Monitor Well

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