• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Applied Computational Electromagnetics Society journal >Shallow Water Three-Dimensional Transient Electromagnetic Modelling by Using Fictitious Wave Field Methods
【24h】

Shallow Water Three-Dimensional Transient Electromagnetic Modelling by Using Fictitious Wave Field Methods

机译：利用虚拟波场方法进行浅水三维瞬态电磁建模

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The marine transient electromagnetic method is a valuable means for locating mineral resources because of its higher detection resolution as well as other advantages. However, this method is easily affected by the air layer and complex terrain, which significantly increase its calculation times. We addressed this problem by developing a three-dimensional finite-difference method based on the principle of correspondence between the diffusive and fictitious wave fields. Using a fast-iteration formula appropriate for a large time step, solving the Maxwell equations in a fictitious wave field, and the effects of air and seawater parameters on the electromagnetic response in shallow water are discussed. Choosing the first derivative of a Gaussian as a source, the 3D numerical simulation of transient electromagnetics in a shallow water area is realized. Comparing to the existing methods, the effectiveness of the proposed method is verified. The results show that this method enables fast and high-precision numerical calculations for 3D models and provides theoretical guidance for detecting seabed mineral resources in complex geological environments in shallow water.
机译：海上瞬变电磁法具有较高的探测分辨率和其他优点，是定位矿产资源的重要手段。但是，此方法容易受到空气层和复杂地形的影响，从而大大增加了其计算时间。我们通过基于扩散波与虚拟波场之间的对应原理开发了三维有限差分方法来解决此问题。讨论了适用于较大时间步长的快速迭代公式，在虚拟波场中求解麦克斯韦方程，并讨论了空气和海水参数对浅水电磁响应的影响。选择高斯的一阶导数作为源，实现了浅水区瞬变电磁的3D数值模拟。与现有方法比较，验证了该方法的有效性。结果表明，该方法可以对3D模型进行快速，高精度的数值计算，为浅水复杂地质环境中海床矿产资源的探测提供理论指导。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号