Numerical Simulation of Transient Temperature Field of Single Fissure Flow in Mining Rock Mass

3rd International Symposium on Resource Exploration and Environmental Science

生态环境科学

Xu, Yihong^1^2 ; Fan, Yingfang^2

Liaoning Provincial College of Communications, Shenyang, China^1

Dalian Maritime University, Dalian

116026, China^2

关键词: Flow direction;    Fluid-solid coupling;    Heat transfer mechanism;    Seepage fields;    Seepage models;    Temperature differences;    Transient temperature fields;    Underground water flow;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/300/2/022128/pdf
DOI  :  10.1088/1755-1315/300/2/022128

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

In this paper, the transient temperature field distribution of single fissure water flow is studied in order to study the fluid-solid coupling heat transfer mechanism of the rock mass. By simulating the flow state of underground water flow along single fissure of rock mass, it establishes the seepage model of single fissure. In addition, the mathematical model of temperature field under the influence of seepage field is established by simplifying the equations of single fissure and temperature control. The results show that the heat balance is closely related to temperature difference and time under fluid-solid coupling, and the greater the change of permeability velocity, the greater the change of temperature distribution. With the increase of time and heat transfer, the temperature difference between the water flow temperature and the wall surface of the rock mass gradually decreases, and the temperature isograde change rate along the flow direction of the water flow decreases gradually.