大学物理 ›› 2008, Vol. 27 ›› Issue (2): 10-10.

• 著者文摘 • 上一篇    下一篇

任意半径圆形电流在径向成层介质中产生的电磁场

魏宝君   

  1. 中国石油大学华东物理科学与技术学院,山东东营257061
  • 出版日期:2008-02-25 发布日期:2008-02-20

On the wave equations of rotating strings

  • Online:2008-02-25 Published:2008-02-20

摘要: 采用递推矩阵方法计算径向成层介质中的二维Green函数.根据层界面处电场和磁场的连续性条件得到确定待定系数的矩阵方程组并通过递推方法快速求解.只需改变方程组中源项元素的位置,就可以方便地得到当源点和场点在任意层时的二维Green函数,并进而得到具有任意半径的圆形电流在介质中产生的电磁场.本文给出的Green函数具有表达方式简洁的优点.

关键词: Green函数, 径向成层介质, 递推矩阵方法, 圆形电流, 电磁场

Abstract: Wave equations for two different types of rotating strings are given in some reference books or text- books of methods of mathematical physics, but the effect of the Coriolis force is not taken into account. There-fore the discussions are incorrect (for vertical rotating heavy string) or incomplete (for horizontal rotating light string). These wave equations are re-derived and their solutions are discussed.

Key words: rotating string, wave equation, Coriolis force

中图分类号: 

  • O441.4