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为研究通风格栅类型对设备舱通风散热的影响,本文采用计算流体力学(CFD)方法分析某高速列车设备舱通风口分别安装横向格栅和竖向格栅后,设备舱内的速度场、温度场和通风量的变化。与竖向格栅相比,横向格栅可使设备舱内平均空气流速提高48%、使总通风量提高58%,舱内空气平均温度降低了2.08℃,相关发热设备表面平均温度都得到了显著降低。研究结果表明横向格栅比竖向格栅更有利于设备舱的通风散热。
In order to study the influence of ventilated grille on ventilation and cooling of equipment room, this paper uses computational fluid dynamics (CFD) method to analyze the velocity field in equipment cabin after installation of horizontal grille and vertical grille on the vent of equipment cabin of a high- Temperature field and ventilation changes. Compared with the vertical grille, the horizontal grille can increase the average air flow velocity in the equipment cabin by 48%, increase the total air volume by 58% and the average air temperature in the cabin by 2.08 ° C, and the average surface temperature of the relevant heating equipment is obtained Significantly lower. The results show that the transverse grille is more conducive to the ventilation of the equipment compartment than the vertical grille.