关键词: 自然风压, 风流温度, 传热, 调热圈, 数值模拟

Abstract: Taking the eastern mining well of Daye Iron Mine as a case, the principle and process of natural wind pressure were analyzed from the heat exchange of surrounding rock and the air.GAMBIT software was adopted to establish the main ventilation shaft model to make a numerical simulation on roadway air flow and heat transfer in combination with fluid software FLUENT.The results from this model were compared with the actual surveying data, and its errors are within the limitation, showing its feasibility.By changing the boundary conditions of the model, multiple sets of natural wind pressure data can be obtained.Finally, MINITAB curve fitting method was used to fit the data so as to obtain the formulas of natural wind pressure for extreme weather in summer or winter.

Key words: Natural wind pressure, Airflow temperature, Heat transfer, Control heat circle, Numerical simulation