CAJ | 학술논문

采用正交试验设计的方法和CFD模拟技术考察在过渡季节，中庭两侧门是否关闭，来流风向以及来流风速大小这三个因素对室内气流组织的影响；研究最不利工况自然通风条件下的室内气流组织分布；对自然通风的时间尺度节能率进行了评估。结果发现在过渡季节，对于室内气流组织，中庭两侧门是否开启和来流风速的影响力相当，而来流风向影响最小。即中庭两侧门打开，来流风与通风口垂直时的自然通风效果最好；中庭两侧门的打开对充分利用室外空气消除室内负荷，延长自然通风时间，提高室内舒适度和空气品质具有重要意义；正常情况下，全年至少有三分之一的时间可以实现自然通风，自然通风状况良好。
채용정교시험설계적방법화CFD모의기술고찰재과도계절，중정량측문시부관폐，래류풍향이급래류풍속대소저삼개인소대실내기류조직적영향；연구최불리공황자연통풍조건하적실내기류조직분포；대자연통풍적시간척도절능솔진행료평고。결과발현재과도계절，대우실내기류조직，중정량측문시부개계화래류풍속적영향력상당，이래류풍향영향최소。즉중정량측문타개，래류풍여통풍구수직시적자연통풍효과최호；중정량측문적타개대충분이용실외공기소제실내부하，연장자연통풍시간，제고실내서괄도화공기품질구유중요의의；정상정황하，전년지소유삼분지일적시간가이실현자연통풍，자연통풍상황량호。
Effects of three facts （whether side doors are closed, direction of the coming wind and its velocity） on air distribution were researched by orthogonal experimental design and CFD simulation in transition season. Air distribution of the most unfavorable conditions was also studied, and the energy-saving rate was valuated from the time point of view. The results show that facts of if side doors are closed and velocity of coming wind have almost the same influence on the air distribution while the effect of direction of the wind is weakest. It is meaningful to open the side doors because it can remove indoor load, extend natural ventilation time, improve thermal comfort and indoor air quality effectively. Natural ventilation can last one third of the year, which is quite energy efficient.