【摘要】 独头巷道压入式通风是有限空间的受限贴附射流。独头巷道通风风流流场是通风理论和通风设计的基础。笔者根据流体动力学和射流理论 ,建立了独头巷道压入式受限贴附射流通风的紊流k -ε数学模型 ,分析了计算边界条件 ,并应用计算流体动力学 (CFD)的方法模拟了独头巷道射流通风流场 ,从理论上得出了独头巷道有限空间受限贴附射流通风的规律 ,为研究独头巷道合理并有效通风提供了新的理论依据。更多还原

【Abstract】 Pressed ventilation in heading face is actually the restrained wall-attached jet ventilation in a confined space. The airflow field of ventilation in heading face is the basis of ventilation theory and design. Referring to hydrodynamic and jet theory, the turbulence k-εmodel of the restrained wall-attached jet ventilation in heading face is set up, and calculation of the boundary condition is analyzed. By the method of computational fluid dynamics (CFD), the ventilation flow field is simulated. The flow regularity of restrained wall-attached jet ventilation in heading face is theoretically obtained, which provides the new criteria for rational and effective ventilation in heading face.更多还原