摘要
该文依据雷诺相似准则,设计了办公房间实验模型,并利用"X"双斜丝探头和两个单斜丝探头对室内的三维湍流流场进行测量;通过CF-920频谱分析仪来分析流场内动态信号的频谱与相关性质.实验结果表明,气流的功率频谱密度没有较大的能量集中,属于宽频带信号,流场动态特性良好;同时,所设计的模型能够使办公房间内下部空调区域有效地、较全面地调整气流流动,提高了相应的经济效益.
In this paper an experimental model of airconditioning adjustment is established based on the Reynold criterion, Velocity distributions and dynamic properties with an Xhotwire probe and singlehotwire probes in an airconditioned room were measured. Experimental results indicate that velocity fluctuation signals in a flow field are typically random with a wide frequency band, and the air flow properties are satisfactory. It has been shown that the experimental model may effectively regulate air flow of an airconditioned room.
出处
《上海大学学报（自然科学版）》
CAS
CSCD
2003年第3期243-247,共5页
Journal of Shanghai University:Natural Science Edition
基金
教育部优秀教师教学科研奖励基金 (教人司 [2 0 0 0 ]2 6 )资助项目
关键词
室内空气品质
湍流测量
动态特性
热线
indoor air quality
turbulent measurement
dynamic characteristic
hot-wire
