中国物理B ›› 2017, Vol. 26 ›› Issue (7): 74701-074701.doi: 10.1088/1674-1056/26/7/074701
• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇 下一篇
Tong Wang(王彤), Kun-Can Zheng(郑坤灿), Yu-Peng Jia(贾宇鹏), Cheng-Lu Fu(付承鹭), Zhi-Jun Gong(龚志军), Wen-Fei Wu(武文斐)
Tong Wang(王彤)1,2, Kun-Can Zheng(郑坤灿)1,2, Yu-Peng Jia(贾宇鹏)1, Cheng-Lu Fu(付承鹭)1,2, Zhi-Jun Gong(龚志军)1,2, Wen-Fei Wu(武文斐)2
摘要: Porous media have a wide range of applications in production and life, as well as in science and technology. The study of flow resistance in porous media has a great effect on industrial and agricultural production. The flow resistance of fluid flow through a 20-mm glass sphere bed is studied experimentally. It is found that there is a significant deviation between the Ergun equation and the experimental data. A staggered pore-throat model is established to investigate the flow resistance in randomly packed porous media. A hypothesis is made that the particles are staggered in a regular triangle arrangement. An analytical formulation of the flow resistance in random porous media is derived. There are no empirical constants in the formulation and every parameter has a specific physical meaning. The formulation predictions are in good agreement with the experimental data. The deviation is within the range of 25%. This shows that the staggered pore-throat model is reasonable and is expected to be verified by more experiments and extended to other porous media.
中图分类号: (Mathematical formulations)