Numerical simulation of temperature field in surrounding rock under seepage and airflow coupling
In order to study the distribution of temperature field in surrounding rock of roadways, the mathematical model of thermal diffusivity is setup based on heat-transfer and seepage theory. This Combined with boundary condition, the distribution of temperature field and temperature vector of surrounding rock under coupling airflow and seepage is obtained by using MATLAB. The results show that seepage changes symmetrical distribution of initial temperature field and vector, and the temperature field in surrounding rock is divided into inward-diffusion area and outward-diffusion area. Under the action of seepage and airflow coupling,wall temperature of roadways will approach the temperature of airflow, and the scope of zero temperature vectors will increase step by step. Temperature field of inward-diffusion area is annular and symmetrically distributed when heat-transfer reaches equilibrium state, and the shape of isothermal curve in outward diffusion area does not change obviously. At the same time, distribution of isothermal curve becomes rarefied.
S.G.Zhang
Institute of Civil Engineering, Liaoning Technical University, Fuxin, Liaoning, China
国际会议
第十二届水-岩相互作用国际研讨会(P0roceedings of the 12th International Symposium on Water-Rock Interaction)
昆明
英文
171-174
2007-07-31（万方平台首次上网日期，不代表论文的发表时间）