Abstract: Based on the characteristic of heading face and the theory of restrained wall-attached jet ventilation in confined space, the mathematical model of pressed ventilation and temperature drop in heading face is set up. Using the Fluent simulate and analyze the distribution of the inlet airflow and temperature field under different airflow speed in roadway. The result shows that inlet airflow with 5m/s speed and 25 ℃ can reach the comfortable work environment.

Key words: Heading face, Ventilation and temperature drop, Numerical simulation, Velocity field, Temperature field