Kozeny-Carman 渗透率

由粒径、孔隙率和球形度估算渗透率与 Darcy 压降，并显示孔隙网格图。

visual calculator多孔介质与流变

先看流动形态，再相信数字。

该工具把 CFD 设置转换为工况、尺度和主导效应提示。调节下方计算器，观察动态图与计算结果如何一起变化。

输入尺度

模型

判断

Kozeny-Carmanpermeabilityporosityporous media

公式

KaTeX rendered

\begin{aligned}\text{K = d\_p\^{}2 eps\^{}3 phi\_s\^{}2 / [180 (1-eps)\^{}2]}\end{aligned}

ASCII source

K = d_p^2 eps^3 phi_s^2 / [180 (1-eps)^2]

particle d_p (m)porosity epssphericity phiDarcy U (m/s)mu (Pa s)length (m)

cyan cells approximate open pore volume

permeability K (m2)

5.730e-10

Darcy dp (Pa)

1745.289

porosity used

0.380

sphericity used

0.850

Kozeny-Carman estimates permeability from particle geometry and porosity; calibrate against pressure-drop data when possible.