【摘要】 选取典型工业厂房作为研究对象，针对下沉式横向与纵向气楼和凸出式气楼3种气楼结构，采用数值模拟方法分析了热源温度对厂房自然通风的影响性分析，对比分析了200、300、400和500℃热源温度条件下厂房内部温度场和速度场的分布特性，以及热源附近1～6 m范围的温度变化特性。结论表明，在高温热源下，下沉式横向气楼的通风量相比凸出式气楼与下沉式纵向气楼分别提升11.4%、6.3%，通风效果优于另外2种气楼结构，更有利于改善作业环境。研究结果为工业热厂房自然通风系统的优化设计提供了参考。更多还原

【Abstract】 A typical industrial workshop is selected, and numerical simulations are conducted to analyze the impact of heat source temperature on natural ventilation performance under three atrium structures: sunken transverse, sunken longitudinal, and protruding. The distribution characteristics of temperature and velocity fields under heat source temperatures of 200, 300, 400, and 500 ℃ are compared, along with the temperature variations within 1 — 6 m of the heat source. Under hightemperature heat sources, the sunken transverse atrium provides 11.4% and 6.3% greater ventilation than the protruding and sunken longitudinal atriums, respectively. It offers superior ventilation, which is more effective at improving the working environment. The results provide a reference for the optimal design of natural ventilation systems in industrial thermal workshops.更多还原