含水层非均质性对地下水蒙特卡罗模拟结果的影响
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P641

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国家自然科学基金(40272106)


Impacts of aquifer heterogeneity on Monte Carlo simulation of groundwater
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    摘要:

    为研究含水层非均质性对地下水蒙特卡罗模拟结果的影响,对非均质性分区渗透系数最终随机场的产生采用对应充填和排列充填两种处理方法,并对两种处理方法的蒙特卡罗模拟结果进行了比较。结果表明:对于具有强烈非均质性的含水层,蒙特卡罗模拟的实现数对于对应充填至少要取至2 500次,排列充填至少要取至10 000次,所得结果才是合理的;在绝对实现数相同的情况下,对应充填处理结果优于排列充填,但当实现数达到22 500次以上时,两种处理方法所得结果就无明显差别。

    Abstract:

    In order to study the impacts of aquifer heterogeneity on the results of Monte Carlo simulation of groundwater, two methods, i. e. , the one-to-one filling method and the arrangement filling method, were used to obtain the permeability coefficient random field, and the results of Monte Carlo simulation using the two methods were compared. The study suggests that, for the aquifer with strong heterogeneity, the necessary number of realizations of Monte Carlo simulation should be at least 2 500 for the one-to-one filling method and 10 000 for the arrangement filling method, in order to obtain reasonable results. In the case of consistent absolute number of realizations, the one-to-one filling method performs better than the arrangement filling method. However, when the number of realizations reaches 22 500 or above, there is no significant difference between the two methods.

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王晶晶,樊尊荣.含水层非均质性对地下水蒙特卡罗模拟结果的影响[J].水资源保护,2017,33(1):46-51.(WANG Jingjing, FAN Zunrong. Impacts of aquifer heterogeneity on Monte Carlo simulation of groundwater[J]. Water Resources Protection,2017,33(1):46-51.(in Chinese))

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  • 收稿日期:2016-04-26
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  • 在线发布日期: 2017-01-23
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