Solution for Distributed Model of Groundwater System with PCG2 for Naolihe Basin in Sanjiang Plain

• Published in: The journal of Northeast Agricultural University Vol. 16; no. 1; pp. 59 - 63
• Main Author: GUO Longzhu WANG Fulin PENG Shengmin
• Format: Journal Article
• Language: English
• Published: College of Agriculture, Northeast Agricultural University, Harbin 150030, China 2009; State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing 210098, China%Engineering College, Northeast Agricultural University, Harbin 150030, China
• Subjects: 三江平原; 分布式模型; 地下水系统; 数值分析; 数值结果; 预条件共轭梯度法; accuracy; groundwater; PCG2; distributed model
• ISSN: 1006-8104

PCG2 （Preconditioned Conjugate-Gradient Method 2）, the most popular mothod used in groundwater field, was used to solve the distributed model of large-scale groundwater system. Its principle and effect was analyzed mathematically, and verified by some specific examples. Numerical results acquired by PCG2 are accurate, it demonstrates that PCG2 is effective on methodology itself and man-ralated operation. So PCG2 is worthy of popularizing in the area of groundwater system for numerical analysis.