中国科学院大学学报2018，Vol.35Issue(2)：193-199,7.DOI:10.7523/j.issn.2095-6134.2018.02.007
孔隙分布不均匀性对渗透率影响的MRT LBM法研究
Study on heterogeneity of pore structure to permeability by MRT LBM
摘要
Abstract
Porosity and permeability are very important characters of a porous media.In this work,MRT LBM was used to study the pore structure influence on permeability and the porosity loss influence on permeability loss.Our simulation results are shown as follows.If there are some factors which cause even decreasing of porosity,such as that of depositing,sediment,and coking,the scope of permeability loss is larger than that of porosity loss.In same-porosity-different-structure (SPDS) porous media,there are extraordinary differences in permeability depending on their own pore structures.A larger ratio of max throat length to min throat length leads to a smaller permeability,and a larger tortuosity leads to a smaller permeability.关键词
渗透率损失/MRT LBM/同孔隙率异构多孔体/最大孔喉最小孔喉比/迂曲度Key words
permeabilty loss/MRT LBM/SPDS/ratio of max throat length to min throat length/tortuosity分类
能源科技引用本文复制引用
马斌,史琳,黄超,许强辉..孔隙分布不均匀性对渗透率影响的MRT LBM法研究[J].中国科学院大学学报,2018,35(2):193-199,7.基金项目
国家自然科学基金面上项目(51236004)和国家自然基金创新团队项目(51621062)资助 （51236004）
