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Supervised by Ministry of Industry and Information Technology of The People's Republic of China Sponsored by Harbin Institute of Technology Editor-in-chief Yu Zhou ISSNISSN 1005-9113 CNCN 23-1378/T

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Related citation:Wenlong Tan,Weijun Fan,Qiang Shi,Hanqing Xu,Rongchun Zhang.Investigation on Atomization Performance of a Slinger[J].Journal of Harbin Institute Of Technology(New Series),2021,28(6):1-13.DOI:10.11916/j.issn.1005-9113.20010..
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Investigation on Atomization Performance of a Slinger
Author NameAffiliation
Wenlong Tan School of Energy and Power Engineering, Beihang University, Beijing 100191, China 
Weijun Fan School of Energy and Power Engineering, Beihang University, Beijing 100191, China 
Qiang Shi School of Energy and Power Engineering, Beihang University, Beijing 100191, China 
Hanqing Xu School of Energy and Power Engineering, Beihang University, Beijing 100191, China 
Rongchun Zhang School of Energy and Power Engineering, Beihang University, Beijing 100191, China 
Abstract:
Slinger is a type of rotary atomizer wherein spray spatial distribution varies with the rotary speed and mass flowrate. The spray parameters at a series of locations in the radial direction of the slinger were measured and the parameters of the location where the spray Sauter Mean Diameter (SMD) corresponds to the smallest were selected to be analyzed. The results indicated that at a specific mass flowrate, an optimum diameter exists for the orifice, in which the orifice’s spray corresponds to the smallest and most uniform. Increases in the mass flowrate increase the optimum diameter. Further, the spray from the circular orifice is more uniform compared with that from the slot orifice with the same circumference. When the length of the orifice increases, the spray becomes larger but more uniform. The liquid regime in the orifice affects primary atomization of the liquid, significantly affecting the spray SMD and uniformity.
Key words:  slinger  rotary atomization  spray uniformity  orifice
DOI:10.11916/j.issn.1005-9113.20010.
Clc Number:V231.2+3; TK16
Fund:
Descriptions in Chinese:
  

甩油盘雾化性能研究

覃文隆,樊未军,石强,徐汉卿,张荣春

(北京航空航天大学 能源与动力工程学院,北京 100191)

摘要:甩油盘是一种旋转雾化器,其液雾在空间的分布会随转速、流量等的变化而变化。在甩油盘径向方向上选择一系列点进行测量,之后选择SMD最小点的液雾参数进行分析,可以排除因液雾空间分布变化造成的影响。结果表明,在特定流量下,存在一个最佳出孔直径,此直径下液雾SMD最小,液雾均匀性最高。流量增大,最佳出孔直径增大。此外,与具有相同周长的槽形出孔相比,圆形出孔的液雾更均匀。出孔径向长度增加,液雾SMD变大,但同时液雾均匀性明显提高。出孔中液体的形态会影响液体的一次破碎过程,从而显著影响液雾的SMD与均匀性。

关键词:甩油盘,旋转雾化,液雾均匀性,出孔

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