计算物理 ›› 1998, Vol. 15 ›› Issue (1): 107-113.

• 论文 • 上一篇    下一篇

中子测井问题中输运方程的谱有限元方法

梅立泉, 黄艾香   

  1. 西安交通大学理学院 710049
  • 收稿日期:1997-03-31 修回日期:1997-05-13 出版日期:1998-01-25 发布日期:1998-01-25
  • 作者简介:梅立泉,男,28,讲师,博士,西安交通大学理学院软件所

SPECTRAL FINITE ELEMENT METHOD OF TRANSPORT EQUATION FOR NEUTRON LOGGING PROBLEM

Mei Liquan, Huang Aixiang   

  1. School of Science, Xi'an Jiaotong University, 710049
  • Received:1997-03-31 Revised:1997-05-13 Online:1998-01-25 Published:1998-01-25

摘要: 讨论了谱有限元方法在中子测井数值模拟中的应用,用球谐函数谱展开和有限元耦合方法求解Boltzmann中子输运方程,得到了这种耦合方法的收敛性。研制了三维有限元程序,实现了中子测井问题数值模拟的正演计算,实际算例表明此方法是有效的。

关键词: 中子测井, 输运方程, 有限元, 球谐函数

Abstract: The application of spetral finite elment method to well-logging problem is discussed.Using spherical harmonic function expansion and finite element method,Boltzmann transport equation is solved numerically,the convergence of the method is approved.A 3-D software is developed to simulate the neutron logging,and the results are satisfied.

Key words: neutron logging, transport equation, finite element method, spherical harmonic function

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