SOLUTE TRANSPORT IN NATURAL FRACTURES BASED ON DIGITAL IMAGE TECHNOLOGY

作     者：TAN Ye-fei ZHOU Zhi-fang HUANG Yong TAN Ye-fei, ZHOU Zhi-fang College of Civil Engineering, Hohai University, Nanjing 210098, China, HUANG Yong The Department of Geoscience, College of Science, University of Nevada, Las Vegas 89154, USA

作者机构：College of Civil Engineering Hohai University Nanjing 210098 China The Department of Geoscience College of Science University of Nevada Las Vegas 89154 USA 

出 版 物：《Journal of Hydrodynamics》 (水动力学研究与进展B辑（英文版）)

年 卷 期：2009年第21卷第2期

页      面：219-227页

核心收录：

学科分类：081803[工学-地质工程] 08[工学] 080203[工学-机械设计及理论] 0818[工学-地质资源与地质工程] 0802[工学-机械工程] 

基　　金：Project supported by the National Natural Science Foundation of China(Grant No.50579012) 

主　　题：fracture solute transport digital image transaction boundary detection lattice Boltzmann method modified moment propagation method 

摘      要：A method of fracture boundary extraction was developed using the Gaussian template and Canny boundary detection on the basis of the collected digital images of natural fractures. The roughness and apertures of the fractures were briefly discussed from the point of view of digital image analysis. The extracted fractured image was translated into a lattice image which can be directly used in numerical simulation. The lattice Boltzmann and modified moment propagation mixed method was then applied to the simulation of solute transport in a natural single fracture, and this mixed method could take the advantages of the lattice Boltzmann method in dealing with complex physical boundaries. The obtained concentrations was fitted with the CXTFIT2.1 code and compared with the results obtained with the commercial software Feflow. The comparison indicates that the simulation using the mixed method is sound.