基于DREAM算法的含水层渗透系数空间变异特征识别

南京大学学报(自然科学版) ›› 2016, Vol. 52 ›› Issue (3): 448–455.

基于DREAM算法的含水层渗透系数空间变异特征识别

骆乾坤1，吴剑锋2*，杨　运2，3，吴吉春2，马淑芬4

出版日期:2016-07-02 发布日期:2016-07-02
作者简介:1.合肥工业大学资源与环境工程学院，合肥，230009；
2.表生地球化学教育部重点实验室，南京大学地球科学与工程学院水科学系，南京，210023；
3.淮河水利委员会，蚌埠，233001；
4.中石油华北油田公司储气库管理处，任丘，062550
基金资助:
国家自然科学基金(41372235，41502226)，中央高校基本科研业务费专项资金(J2014HGBZ0186)

Identification of the spatial variability of aquifer hydraulic conductivity

Luo Qiankun1，Wu Jianfeng2*，Yang Yun2，3，Wu Jichun2，Ma Shufen4

Online:2016-07-02 Published:2016-07-02
About author:1.School of Resources and Environmental Engineering，Hefei University of Technology，Hefei，230009，China；
2.Key Laboratory of Surficial Geochemistry，Ministry of Education，Department of Hydrosciences，School of Earth Sciences and Engineering，Nanjing University，Nanjing，210023，China；
3.Huai River Water Resources Commission， Bengbu，233001，China；
4.Petrochina Huabei Oilfield Company UGS Management Authority，Renqiu，062550，China

摘要/Abstract

摘要： 采用差分进化自适应Metropolis(DREAM)算法对描述含水层渗透系数空间变异特征的参数进行识别．利用直接傅里叶变换方法产生一组空间结构参数下的若干个渗透系数场实现，借鉴噪声遗传算法(NGA)思想，计算该组空间结构参数对应的贝叶斯后验概率值，提高DREAM算法求解的效率．算例求解结果表明，DREAM算法能够有效获得含水层渗透系数空间结构参数的后验分布，并可得到对应的一系列渗透系数场，可为含水层参数空间变异性研究提供新的思路．

Abstract: In this study，it adopted the Differential Evolution Adaptive Metropolis(DREAM)algorithm to identify the spatial structure parameters of the spatial variability of aquifer hydraulic conductivity.The direct Fourier transform method is used to generate a certain number of hydraulic conductivity field realizations under a special set of the spatial structure parameters.Furthermore，the idea of Noisy Genetic Algorithm(NGA)is introduced to calculate the Bayesian posterior probability values，and improve the computational efficiency of the DREAM algorithm.Optimization results of the field application shows that the DREAM algorithm can effectively find the posterior distribution of the spatial structure parameters of the aquifer hydraulic conductivity，and a set of hydraulic conductivity field realizations can be obtained.Therefore，it may provide a novel research idea for identification of the spatial variability of aquifer hydraulic conductivity.

骆乾坤1，吴剑锋2*，杨　运2，3，吴吉春2，马淑芬4. 基于DREAM算法的含水层渗透系数空间变异特征识别[J]. 南京大学学报(自然科学版), 2016, 52(3): 448–455.

Luo Qiankun1，Wu Jianfeng2*，Yang Yun2，3，Wu Jichun2，Ma Shufen4. Identification of the spatial variability of aquifer hydraulic conductivity[J]. Journal of Nanjing University(Natural Sciences), 2016, 52(3): 448–455.

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