【摘要】 本文利用ＩＦＡ３００型一维热膜风速仪系统对径向浓淡旋流煤粉燃烧器单相冷态湍流流场进行了试验研究，测量了流场内不同位置瞬时速度的数值，同时测量了脉动速度均方根、湍流度、平坦因子和偏斜因子在流场内的分布，得到了新型旋流燃烧器气流湍流特性参数的分布规律，可以用于研究径向浓淡旋流煤粉燃烧器的燃烧特性。更多还原

【Abstract】 The isothermal turbulent flow from a Radial Bias Combustion (RBC) Swirl burner is studied with a single hot-film sensor of IFA300 constant temperature anemometer. The instantaneous velocity is measured at the different positions downstream the burner exit. Profiles of root- meansquared fluctuating velocity (rms), turbulent intensity, flatness coefficient and skewness coefficient are also measured in swirling flow. The distribution characters of these turbulent parameters can be used to improve understanding of the combustion process of RBC swirl burner.更多还原