Analysis of 2D Flow and Heat Transfer Modeling in Fracture of Porous Media  

作　　者：GUO Chunsheng NIAN Xianbo LIU Yong QI Chao SONG Jinsheng YU Wenhe 

机构地区：[1]Dynamics and mechanical&electrical equipment engineering technology research center,Shandong University,Weihai,Shandong,264209,China [2]State Key Laboratory of Petroleum Pollution Control,Beijing,102206,China

出　　处：《Journal of Thermal Science》2017年第4期331-338,共8页热科学学报（英文版）

基　　金：financially supported by National Natural Science Foundation of China(Grant No.51305238)

摘　　要：Heat and mass transfer between porous media and fluid is a complex coupling process, which is widely used in various fields of engineering applications, especially for natural and artificial fractures in oil and gas extraction. In this study, a new method is proposed to deal with the flow and heat transfer problem of steady flow in a fracture. The fluid flow in a fracture was described using the same method as Mohais, who considered a fracture as a channel with porous wall, and the perturbation method was used to solve the mathematical model. Unlike previous studies, the shear jump boundary condition proposed by Ochoa-Tapia and Whitaker was used at the interface between the fluid and porous media. The main methods were perturbation analysis and the application of shear jump boundary conditions. The influence of permeability, channel width, shear jump degree and effective dynamic viscosity on the flow and heat transfer in the channel was studied by analysing the analytical solution. The distribution of axial velocity in the channel with the change of the typical parameters and the sensitivity of the heat transfer was obtained.

关 键 词：Heat and Mass Transfer FRACTURE Porous Media Stress Jump Boundary Condition Analytical Solution 

分 类 号：TK124[动力工程及工程热物理—工程热物理]