基于非结构化网格的三维大地电磁自适应矢量有限元模拟
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Release time:2020-08-09 DOI number:10.7666/d.y1538559 Affiliation of Author(s):中南大学地球科学与信息物理学院 Teaching and Research Group:中南大学应用地球物理系 Journal:中南大学学报(自然科学版) Place of Publication:中国 Key Words:MT三维正演；非结构化网格；矢量有限元；残差型后验误差；h-型自适应有限元 Abstract:基于能够模拟复杂模型的非结构化网格,提出基于矢量单元的三维自适应有限元大地电磁模拟算法.其过程是:利用残差型的后验误差算子初步估算粗网格上的单元误差,通过加密误差超过限定的单元,生成新的网格;对新的网格重复上一步过程,从而得到更加精确的数值结果;重复迭代过程直到计算结果的精度达到预定要求为止,从而生成最优化的有限元网格;基于COMMEMI 3D-1 MT模型的数值模拟,验证本文算法的正确性.研究结果表明:通过自适应的网格加密和迭代求解过程,本文算法可以产生迭代收敛的数值结果,计算结果具有较高的精度. Co-author:任政勇, 汤井田 First Author:刘长生 Indexed by:Applied Research Correspondence Author:冯德山 Document Code:1672-7207(2010)05-1855-05 Discipline:地质资源与地质工程 Document Type:J Volume:41 Issue:5 Page Number:1855-1860 ISSN No.:1672-7207 Translation or Not:no CN No.:43-1426/N Date of Publication:2010-10-26 Included Journals:EI -
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