孔隙分布不均匀性对渗透率影响的MRTLBM法研究

doi:10.7523/j.issn.2095-6134.2018.02.007

中国科学院大学学报 ›› 2018, Vol. 35 ›› Issue (2): 193-199.DOI: 10.7523/j.issn.2095-6134.2018.02.007

• 中国工程热物理学会2016年传热年会专栏 • 上一篇下一篇

孔隙分布不均匀性对渗透率影响的MRTLBM法研究

马斌¹, 史琳², 黄超², 许强辉²

1. 兰州交通大学机电工程学院, 兰州 730070;
2. 清华大学能源与动力工程系工程热物理研究所, 北京 100081

收稿日期:2017-05-02 修回日期:2017-09-25 发布日期:2018-03-15
通讯作者: 史琳
基金资助:
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

Study on heterogeneity of pore structure to permeability by MRT LBM

MA Bin¹, SHI Lin², HUANG Chao², XU Qianghui²

1. School of Mechanical Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China;
2. Insitute of Engineering Thermophysics, Department of Energy and Power Engineering, Tsinghua University, Beijing 100081, China

Received:2017-05-02 Revised:2017-09-25 Published:2018-03-15

摘要/Abstract

摘要： 孔隙率与渗透率是多孔介质非常重要的属性参数，采用MRT LBM研究孔隙率损失与渗透率损失相关性以及同孔隙率异构孔隙对渗透率特性的影响。结果表明：当存在使孔隙率均匀变小的沉积、沉降或结焦等因素时，渗透率损失率是孔隙率损失率的2倍左右；同孔隙率异构多孔体中，渗透率有巨大差异；同孔隙率异构多孔体中最大孔喉最小孔喉比越大渗透率越小；同孔隙率多孔体中迂曲度越大渗透率越小。

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

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.

Key words: permeabilty loss, MRT LBM, SPDS, ratio of max throat length to min throat length, tortuosity

中图分类号:

TK224

马斌, 史琳, 黄超, 许强辉. 孔隙分布不均匀性对渗透率影响的MRTLBM法研究[J]. 中国科学院大学学报, 2018, 35(2): 193-199.

MA Bin, SHI Lin, HUANG Chao, XU Qianghui. Study on heterogeneity of pore structure to permeability by MRT LBM[J]. , 2018, 35(2): 193-199.

参考文献

[1] Ergun S. Fluid flow through packed columns[J]. Chemical Engineering Progress, 1952, 48:89-94.
[2] Carman P C. Flow of gases through porous media[J]. Science, 1956, 124:1254-1255.
[3] Wang J Q, Zhao J F, Zhan Y, et al. Analysis of the effect of particle size on permeability in hydrate-bearing porous media using pore network models combined with CT[J]. Fuel, 2016,163:34-40.
[4] Gao Y, Zhang X X, Ramae P, et al. Calculating the anisotropic permeability of porous media using the lattice boltzmann method and X-ray computed tomography[J]. Transport Porous Media 2012, 92:457-472.
[5] Maarten V. Porosity, permeability and 3D fracture network characterization of dolomite reservoir rock samples[J]. Journal of Petroleum Science and Engineering, 2015, 127:270-285.
[6] 查露,栗晶,曹传胜,等. 三维颗粒群沉降的格子Boltzmann模拟[J]. 中国科学院大学学报, 2016, 33(2):240-246.
[7] Schaaf S A, Chambre P L. Flow of rarefied gases[M]. Aiche Journal, 2010, 8(3):293-297.
[8] Pan C, Luo L S, Miller CT. An evaluation of lattice boltzmann scheme for porous medium flow simulation[J]. Computers & Fluids, 2006, 35:898-909.
[9] Cho H J, Jeong N, Sung H J. Permeability of microscale fibrous porous media using the lattice Boltzmann method[J]. International Journal of Heat and Fluid Flow, 2013, 44:435-443.
[10] Cho H J, Jeong N, Sung H J. Permeability of microscale fibrous porous media using the lattice Boltzmann method[J]. International Journal of Heat & Fluid Flow, 2013, 44(12):435-443.
[11] Zou Q, He X. On pressure and velocity boundary conditions for the lattice Boltzmann BGK model[J]. Physics of Fluids 1997, 9:1591-1597.
[12] Ghassemi A, Pak A. Pore scale study of permeability and tortuosity for flow through particulate media using Lattice Boltzmann method[J]. International Journal for Numerical and Analytical Methods in Geomechanics, 2011, 35:886-899.
[13] Bahman S, Pak A. Numerical investigation of the effects of porosity and tortuosity on soil permeability using coupled three-dimensional discrete-element method and lattice Boltzmann method[J]. Physical Review E, 2015, 91:053301.

孔隙分布不均匀性对渗透率影响的MRTLBM法研究

Study on heterogeneity of pore structure to permeability by MRT LBM

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 2

编辑推荐

Metrics

本文评价

访问统计

联系我们

[1]	刘国栋, YIN Xiaolong, 王帅, 陆慧林, 张亚男. 颗粒-流体密度比对两相流动不稳定性影响的格子-Boltzmann方法模拟[J]. 中国科学院大学学报, 2017, 34(2): 198-203.
[2]	邱桂芝, 叶佳敏, 王海刚, 王小芳, 王法军, 孙运凯, 聂立. 大型循环流化床环形炉膛中气固流动特性的CPFD数值模拟[J]. 中国科学院大学学报, 2016, 33(2): 218-222.