圆柱体点源场有限单元模拟  

THE SIMULATION FOR THE NODE-SOURCE FIELD OF CYLINDER WITH FEM

作　　者：陶加祥[1] 戴光明[1] 王华军[1] 罗延钟[1] 郝锦绮[2] 

机构地区：[1]中国地质大学,湖北武汉430074 [2]国家地震局地球物理所,北京100086

出　　处：《物探化探计算技术》2000年第1期26-29,共4页Computing Techniques For Geophysical and Geochemical Exploration

基　　金：国家地震局地震基金项目!(编号 :96-0 7-4 3 4 )

摘　　要：我们对有限长度园柱形电性不均匀体的点源场的有限单元法数值模拟进行了研究和讨论。利用“镜像法”原理将三维数值模拟问题转化成二维问题 ,从理论上严格地推导出了求“旁测剖面”电位的公式。依据此算法编制出的程序对各种模型进行了计算 。In this paper, the numerical simulation for cylinder which is fitted with ununiform electrical body is studied and discussed with FEM method. In our approach the 3D numerical simulation has been transformed into 2D problem through the mirror image method. The formulation to solve collateral sectional potential is deduced strictly. According to this formulation a program has been developed. Some numerical simulation for deferent models show that the result is reliable and satisfactory.

关 键 词：有限元 数值模拟 镜像法 圆柱体点源场 电法勘探 

分 类 号：P631.31[天文地球—地质矿产勘探]