送风参数对客车车室气流组织的影响研究

Study on the influence of air supply parameters on air distribution in bus compartment

以城市公交空调客车作为研究对象,通过CFD软件对5种不同送风工况下的车室内部温度场和流场情况进行数值模拟分析,重点探讨了不同送风参数对车室内部气流组织分布状态的影响规律。结果表明:送风速度对车室内的温度场和流场分布影响较大,其中当空调送风速度为2 m/s时,车室内部的气流组织处于最佳状态;当空调送风温度不变时,随送风速度增加,车室内部平均风速和平均温度也随之增大;送风温度对整个车室内环境的平均温度影响较大。

Taking urban public transport air-conditioned buses as the research object, CFD software was used to simulate and analyze the indoor temperature field and flow field of vehicles in five different air supply conditions, and the influence law of different air supply parameters on indoor air distribution was mainly discussed. The results show that the air supply velocity has a great influence on the distribution of temperature field and flow field in the vehicle. When the air supply velocity is 2 m/s, the air distribution in the vehicle is in the best state. When the air conditioning supply air temperature is constant, the average wind speed and the average temperature in the interior of the vehicle also increase with the increase of air supply speed.The air supply temperature has great influence on the average temperature of the whole indoor environment.