Simulation of finite volume method and experimental analysis for temperature field of roadway surrounding rock

QIN Yueping; WANG Hao; GUO Kaiyuan; XUE Pengfei; WANG Jiawen; WU Jiansong

doi:10.13225/j.cnki.jccs.2017.1105

Abstract：The mathematical model of unsteady state temperature field of surrounding rock was established based on the energy conservation law and Fourier law according to the heat dissipation characteristics of temperature field of roadway surrounding rock.The calculation program was worked out by using finite volume calculation method,and the temperature field of surrounding rock of roadway was calculated.Similar experimental platform for temperature field of roadway surrounding rock was established,and the simulation results of the finite volume method were verified by the experimental results.It was found that the calculation results of finite volume method coincide with that of similar simulation experiments.The variation trend of space-time curves of temperature field obtained by both methods is consistent.It shows that it is correct and scientific to apply the finite volume method to establish the mathematical model and the calculation program.Based on the simulation results and experimental results,the factors affecting the unsteady state change of the temperature field of the surrounding rock under constant airflow temperature were analyzed,and the variation law of unsteady state temperature field of roadway surrounding rock was obtained.The unsteady state process of temperature field of roadway surrounding rock was analyzed and the heat dissipation of surrounding rock was calculated based on engineering background.