摘要
煤层甲烷运移包含渗流场、变形场和应力场的动态耦合过程 ,考虑到渗流过程中水 气两相不溶混流体与固体耦合作用 ,建立了非饱和水流阶段非稳态渗流问题的流固耦合数学模型 ,对该强非线性数学模型采用摄动法及积分变换法进行解析求解 ,并讨论了其压力动态特征 ,分析了压力随饱和度S及时间t变化的情况和气相以及耦合作用的影响 .图 4,参 6 .
Coal methane transports including the coupling process of seepage field,deformation field and stress field in the course of methane developing.According to the theory of fluid-solid interaction mechanics, the author has taken into account the coupling effect of water-gas phase immiscible flow and established the coupled numerical model of unsteady seepage in coal methane unsaturated flow phase. In this nonlinear numerical model, the perturbation and integral transform are adopted. Pore pressure along level distance at different saturation S and time t, and gas phase effect on seepage flow are discussed,some other valueble conclusions have been gotten. 4figs.,6refs.
出处
《湘潭矿业学院学报》
2002年第2期12-16,共5页
Journal of Xiangtan Mining Institute
基金
高等学校骨干教师资助计划资助 (编号 :990 62 1 50 9)
关键词
非饱和水流阶段
流固耦合
非稳态渗流
unsaturated water flow phase
fluid-solid interaction
unsteady seepage Biography:SUN Ke-ming ,male,born in 1968,lecturer,Dr. candidate, fluid mechanics research of rock mass.
