航空学报 > 1989, Vol. 10 Issue (6): 335-338

平面温度场的延拓有限元分析

古天龙   

  1. 西安电子科技大学
  • 收稿日期:1987-12-31 修回日期:1900-01-01 出版日期:1989-06-25 发布日期:1989-06-25

EXTENDED FINITE ELEMENT ANALYSIS FOR TWO DIMENSIONAL TEMPERATURE FIELD PROBLEMS

Gu Tianlong   

  1. Xian University of Electronic Science and Technology
  • Received:1987-12-31 Revised:1900-01-01 Online:1989-06-25 Published:1989-06-25

摘要:

平面温度场的延拓有限元分析 大多数复杂温度场问题的解析解往往是难以获得的,必须采用一些近似的数值计算方法。延拓有限元技术合理利用了单元邻近外点信息,以构造单元内高精度广义插值近似函数,从而在不增加网格剖分单元及结点数目的条件下,有效地改善温度场的分析精度。

关键词: 有限元分析, 温度场, 数值计算

Abstract:

An extended finite element method for two dimensional ten, perature field problems is proposed. The method is characterized by utilizing the information from nodes in external elements to construct approximate functions on the element without additional nodes and elements, the computational accuracy can be improved by the technique.

Key words: finite element analysis, temperature field, numerical computation