Lebon L, Leblond J, Hulin J P, Martys N S, Schwartz L M
Laboratoire PMMH, ESPCI, Paris, France.
Magn Reson Imaging. 1996;14(7-8):989-91. doi: 10.1016/s0730-725x(96)00203-2.
In this work we used the PFG NMR displacement technique to investigate the transport of water particles under flow through a model porous media. Using different sizes of sphere for monodisperse glass sphere packings, we measured the probability distribution of displacement for mean displacements ranging from 0.08 to 7.3 times the characteristic length of the porous media. We observed, therefore, the transition between the velocity probability distribution and the Gaussian-shaped distribution of classical dispersion.
在这项工作中，我们使用脉冲场梯度核磁共振位移技术来研究水流过模型多孔介质时水颗粒的传输情况。通过使用不同尺寸的球体构建单分散玻璃珠填充床，我们测量了平均位移范围为多孔介质特征长度的0.08至7.3倍时的位移概率分布。因此，我们观察到了速度概率分布与经典弥散的高斯分布之间的转变。
