Camargo Mário A, Facin Paulo C, Pires Luiz F
Laboratory of Soil Physics and Environmental Sciences, Department of Physics, State University of Ponta Grossa, UEPG, 84.030-900 Ponta Grossa, PR, Brazil.
ScientificWorldJournal. 2012;2012:527618. doi: 10.1100/2012/527618. Epub 2012 May 1.
The hydraulic conductivity (K) represents an important hydrophysical parameter in a porous media. K direct measurements, usually demand a lot of work, are expensive and time consuming. Factors such as the media spatial variability, sample size, measurement method, and changes in the sample throughout the experiment directly affect K evaluations. One alternative to K measurement is computer simulation using the Lattice Boltzmann method (LBM), which can help to minimize problems such as changes in the sample structure during experimental measurements. This work presents K experimental and theoretical results (simulated) for three regular finite arrangements of spheres. Experimental measurements were carried out aiming at corroborating the LBM potential to predict K once the smallest relative deviation between experimental and simulated results was 1.4%.
水力传导率（K）是多孔介质中一个重要的水文物理参数。K的直接测量通常需要大量工作，成本高昂且耗时。诸如介质空间变异性、样本大小、测量方法以及实验过程中样本的变化等因素会直接影响K的评估。K测量的一种替代方法是使用格子玻尔兹曼方法（LBM）进行计算机模拟，这有助于将实验测量过程中样本结构变化等问题的影响降至最低。这项工作给出了三种规则有限球体排列的K实验结果和理论（模拟）结果。进行实验测量的目的是验证LBM预测K的潜力，因为实验结果与模拟结果之间的最小相对偏差为1.4%。
