Finite Difference Analysis of Transient Heat Transfer in Surrounding Rock Mass of High Geothermal Roadway

Table 1

Test program.

Parameter	Value
Original rock temperature	°C
Roadway radius	m
Airflow temperature	°C
Heat conductivity coefficient	W/m·K
Thermal diffusivity coefficient	m^2/s
Airflow velocity	m/s
Convective heat transfer coefficient on the surface	W/m^2·K
Biot	Bi = 41.63