摘要
本文给出了考虑介质变形的双重孔隙介质流固耦合渗流模型 ,并考虑渗流参数随有效应力而变化的非线性双重孔隙介质流固耦合渗流。在此基础上 ,本文还推导了双重孔隙介质非线性流固耦合渗流有限元计算格式 ,编制了计算机程序。并可模拟单孔隙 ,双重孔隙 ,常系数线性和变系数非线性等流固耦合渗流计算。并给出了算例。
based on the double porosity concept and taken into account the media deformation, this paper has presented to derive a set of non linear govern equations which describe the fluid behavior flowing through the naturally fissured media with deformable matrix. When the coefficients varies with the effective stress of media, the equations are non linear. In addition, A computer program (based on finite element method) has been developed. The program is capable of modelling problems associated with single and double porosity, having two options of constant and variable coefficients. In the variable coefficient option, at each time step(effective stress step), the values of coefficients are updated using the set of constitute relationship. A example is presented here also.
出处
《计算力学学报》
CAS
CSCD
北大核心
2001年第2期133-137,共5页
Chinese Journal of Computational Mechanics
基金
:"油气藏地质及开发工程"国家重点实验室开放基金资助项目!( PLN973 5)
