| 非稳定边界条件下地下水流场数值模拟 |
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| 引用本文： | 戴长雷,迟宝明,李治军,李志萍.非稳定边界条件下地下水流场数值模拟[J].灌溉排水学报,2004,23(5):69-71. |
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| 作者姓名： | 戴长雷 迟宝明 李治军 李志萍 |
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| 作者单位： | 吉林大学,环境与资源学院,吉林,长春,130026;吉林大学,环境与资源学院,吉林,长春,130026;吉林大学,环境与资源学院,吉林,长春,130026;吉林大学,环境与资源学院,吉林,长春,130026 |
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| 基金项目： | 吉林省科技厅科技发展项目(20010432) |
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| 摘 要： | 地下水流数值模拟的目标是复制和再现实际地下水流状态。非稳定边界是指,模拟流场和外部环境通过它进行的物质、能量和信息交换具有重要影响且该交换规律难以准确刻画的边界。对于潜水含水层平面二维非稳定流,边界的非稳定性集中体现在水力坡度和含水层厚度上,可以借助迭代法实现模拟,应用该方法成败的关键在于相邻二时段边界渗流量的差值是否满足精度要求。给出非稳定边界条件下地下水流场数值模拟实例,并综合采用水位拟合、水量均衡和流场分析等方法对模拟结果进行识别和验证。
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| 关 键 词： | 非稳定边界 地下水流场 数值模拟 迭代法 |
| 文章编号： | 1000-646X(2004)05-0069-03 |
| 修稿时间： | 2004年5月26日 |
Numerical Simulation of Groundwater Flow Field with Non-stable Boundaries |
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| DAI Chang-lei,CHI Bao-ming,LI Zhi-jun,LI Zhi-ping.Numerical Simulation of Groundwater Flow Field with Non-stable Boundaries[J].Journal of Irrigation and Drainage,2004,23(5):69-71. |
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| Authors: | DAI Chang-lei CHI Bao-ming LI Zhi-jun LI Zhi-ping |
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| Abstract: | The goal of numerical simulation of groundwater is to reproduce real groundwater flow. Substance, energy and information can exchange between simulation area and outside through non-stable boundaries and it is difficult to describe the exchanging rule accurately. For plane 2 dimensions non-stable flow in unconfined aquifer, the non-stable properties of boundaries can be found in hydraulic gradient and thickness of the aquifer, and it can be simulated by the means of interactive method. Whether a simulation based on interactive method is successful or not is depended on whether the difference between boundary exchanges of two consecutive times is meet the precision. The article shows a simulation example and identifies and verifies the results by use of the three methods of water table fitting, water quantity balancing and flow field analyzing. |
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| Keywords: | non-stable boundaries groundwater flow field numerical simulation interactive method |
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