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在矿井地热预测中,矿井风流与围岩之间的非稳定传热系数是传热计算的重要参数。作者提出井巷围岩地温场温度分布规律和非稳定传热系数的解析式,阐明其本质及其影响因素的关系。经计算机的模拟实例证明,新的解析式精度较高,简便实用。
In mine geothermal prediction, the unsteady heat transfer coefficient between mine wind flow and surrounding rock is an important parameter in heat transfer calculation. The author puts forward the temperature distribution law of the surrounding rock temperature field and the analytical solution of the unsteady heat transfer coefficient, clarifies the relationship between the essence and the influencing factors. The computer simulation shows that the new analytical precision is high, simple and practical.