独头巷道受限贴附射流通风理论研究

Forced ventilation is jet ventilation of restrained space in alone heading face, and , it is jet ventilation of wall-attached jet ventilation because jet flow attaches wall for limit by heading wall. Air flow of forced ventilation in mine driving work face is applied to hydromechanics, aerodynamics and turbulent jet, etc. computer simulation, and treaty contents are finished. Research process has the theories, experiments, computer simulation and field verification by treaty contents and process. The achievements have four parts:.(1).jet ventilation of flow field in alone heading face;.(2).diffusant process and density distribution in alone heading face ventilation;.(3).effective ventilation theory ,air age and air quality in alone heading face;(4).swirling jet ventilation theory in alone heading face.The achievements find out the flow field face law of forced attached wall jet in alone heading face, and fill up the vacancy in the theoretical field, and provide reliable theory for the approaches of safety production in alone heading face in mine shaft..

根据流体力学、空气动力学和紊动射流理论，用示踪气体试验手段和计算机仿真技术，研究独头巷道受限贴附射流通风理论，建立独头巷道受限贴附射流通风风流流场的实验及仿真模型、建立射流通风空气年龄、换气效率、排污效率及空气品质的计算模型。为独头巷道合理配风及有效通风设计提供新的理论依据，对形成独头巷道安全健康的作业环境有重大意义