地下流体场与应力场耦合方程的有限单元法

地下流体场与应力场的耦合解越来越受到重视。关于它们的单独解，已有许多很好的有限单元方法，利用这些已有的程序来研究上述二场的耦合解很有意义。考虑介质的可压缩性，分析地下流体场与应力场的耦合方程，应用Ｇａｌｅｒｋｉｎ方法将方程离散，得到有限单元公式。设计了求流体场与应力场耦合解的三维有限单元程序，给出较详细的设计方案

Finite elemental solution to fluid solid problem.

Coupling of fluid flow and stress field is becoming an important problem. As to far, there are so many good solutions to each side of the problem. Thus, it would be very necessary and economical to make used of the existing solution or software to solve the coupling problem. Here, the compressibility of media is considered to get a coupled equation. Galerkin method is used in discretization of the equation, through which a se of finite elemental formulas is presented. Finally, a FEM code is developed by making use of solid structural analysis code easy available, also a program scheme is presented here in detail.