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。
The isothermal turbulent flow from a Radial Bias Combustion (RBC) Swirl burneris studied with a single hot-film sensor of IFA300 constant temperatureanemometer. The instantaneous velocity is measured at the different positionsdownstream the burner exit. Profiles of root-mean-squared fluctuating velocity(rms), turbulent intensity, flatness coefficient and skewness coefficient arealso measured in swirling flow. The distribution characters of these turbulentparameters can be used to improve understanding of the combustion process ofRBC swirl burner.
参考文献
| [1] | 马春元 .径向浓淡旋流煤粉燃烧器的冷态试验研究[J].动力工程,1997,17(01):10-15. |
| [2] | 李争起 .配风方式对旋流煤粉燃烧器NOx的排放及煤粉燃尽的影响[J].动力工程,1997,17(02):27-32,11. |
| [3] | 李争起 .一种用于蜗壳式旋流煤粉燃烧器改造的新技术[J].热能动力工程,1997,12(03):217-219. |
| [4] | T F Dixon et al.Aerodynamic Studies on Swirled Coaxial Jets fromNozzles with Divergent Quarls[J].Journal of Fluids Engineering,Transactions of the ASME,1983,105:197-203. |
| [5] | Bach T Vu et al.Flow Measurements in a Model Swirl Combustor[J].AIAA Journal,1982,20(05):642-651. |
| [6] | 李争起 .径向浓淡旋流煤粉燃烧器气固两相流动特性及应用的研究[D].哈尔滨工业大学,1997. |
| [7] | 孙锐 .径向浓淡旋流煤粉燃烧器流动特性试验研究及数值模拟[D].哈尔滨工业大学,1998. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%