多孔介质渗透系数数值模拟研究  

Numerical Simulation on Infiltration Coefficients of Porous Media

作　　者：刘阳[1] 乔熙[1] 张鹏[1] 

机构地区：[1]中国矿业大学力学与建筑工程学院,江苏徐州221008

出　　处：《徐州建筑职业技术学院学报》2010年第4期8-12,共5页Journal of XUZHOU Institute of Architectural Technology

摘　　要：利用ANSYS有限元程序模拟多孔介质孔隙特征和孔隙率对其渗透系数的影响,计算出不同孔隙率、孔径、孔喉比所对应的等效渗透系数,并用拟合数学方程评价孔隙率、孔径、孔喉比对渗透系数的影响程度.结果表明:多孔介质的等效渗透系数与孔隙率和平均孔径呈线性正相关关系,与孔喉比呈负相关关系.Based on ANSYS,this paper simulated the influences of the pore characteristics and porosity of porous media on their infiltration coefficients,calculated the equivalent infiltration coefficients in correspondence with different porosities,apertures and pore-throat ratios,and evaluated by means of the fitting mathematical equations the degrees of influence of the porosity,operture and pore-throat ratio on infiltration coefficients.The results showed that the equivalent infiltration coefficients of porous media presented the positive correlation with the porosity and average aperture and the negative correlation with the pore-throat ratio.

关 键 词：多孔介质 渗透系数 孔隙特征 

分 类 号：TU528.3[建筑科学—建筑技术科学]