Development and verification of a fuel slinger atomization test bench
GAO Xiang1,2, WANG Fang1,2, XIAO Yangchun1,2, WU Zhaoyang1,2, JIN Jie1,2
1. School of Energy and Power Engineering, Beihang University, Beijing 100191, China; 2. Jiangxi Research Institute of Beihang University, Nanchang 330096, China
Abstract：Fuel slingers are commonly used fuel injection devices for small and medium-sized aeroengines. This study developed a fuel slinger atomization test bench to provide reference data to improve fuel slinger designs and combustion chamber performance tests. The test bench included a water supply system, rotating system, ventilation system, test system, control system, and data acquisition system. Analyses of the key operating parameters such as the water supply pressure, water supply flow rate and vibrations of the rotating system shows that the test bench gives reliable, accurate experimental data. A phase Doppler particle analyzer (PDPA) was used to measure the particle size statistics and the variation of the Sauter mean diameter (SMD) for various rotational speeds. The experimental results show that the particle size in the fuel slinger has a normal distribution and the SMD decreases with increasing fuel slinger speed with an SMD of 41 μm above 12 000 r/min. The experimental results are consistent with the conclusions of previous papers, further indicating the reliability of the test bench.
高翔, 王方, 肖阳春, 武召阳, 金捷. 甩油盘雾化实验台开发和验证[J]. 清华大学学报（自然科学版）, 2020, 60(3): 212-218.
GAO Xiang, WANG Fang, XIAO Yangchun, WU Zhaoyang, JIN Jie. Development and verification of a fuel slinger atomization test bench. Journal of Tsinghua University(Science and Technology), 2020, 60(3): 212-218.
[1] 宋双文, 罗辉. 离心甩油盘特性浅析[C]//中国航空学会(动力)第三届小发动机, 中国航空学会(直升机)第三届动力与传动学术讨论会论文集. 温州, 中国:中国航空学会, 2000:125-133. SONG S W, LUO H. Analysis of centrifugal fuel slinger[C]//Proceedings of the 3rd Small Engine Academic Symposium of Chinese Society of Aeronautics and Astronautics. Wenzhou, China:Chinese Society of Aeronautics and Astronautics, 2000:125-133. (in Chinese) [2] MASKEY H C, MARSH F X. The annular combustion chamber with centrifugal fuel injection[C]//Proceedings of the Society of Automotive Engineers. New York, USA:SAE, 1962:620007. [3] ROGO C, TRAUTH R L. Design of high heat release slinger combustor with rapid acceleration requirement[C]//Proceedings of the Society of Automotive Engineers. New York, USA:SAE, 1974:740167. [4] MORISHITA T. A development of the fuel atomizing device utilizing high rotational speed[C]//Proceedings of the ASME 1981 International Gas Turbine Conference and Products Show. Houston, Texas, USA:ASME, 1981:V001T04A007. [5] DAHM W J A, PATEL P R, LERG B H. Visualization and fundamental analysis of liquid atomization by fuel slingers in small gas turbines[C]//Proceedings of the 32nd AIAA Fluid Dynamics Conference and Exhibit. St Louis, Missouri, USA:AIAA, 2002:3183. [6] CHOI S, LEE D, PARK J. Ignition and combustion characteristics of the gas turbine slinger combustor[J]. Journal of Mechanical Science and Technology, 2008, 22(3):538-544. [7] CHOI S M, JANG S H, LEE D H, et al. Spray characteristics of the rotating fuel injection system of a micro-jet engine[J]. Journal of Mechanical Science and Technology, 2010, 24(2):551-558. [8] 贾永忠. 甩油盘的雾化分析[J]. 推进技术, 1995, 16(4):45-49. JIA Y Z. An analysis on atomization of fuel slinger[J]. Journal of Propulsion Technology, 1995, 16(4):45-49. (in Chinese) [9] 熊纯, 宋双文, 陈剑, 等. 一种离心甩油盘雾化性能的试验[J]. 航空动力学报, 2012, 27(7):1517-1522. XIONG C, SONG S W, CHEN J, et al. Experimental study of atomization performance on a fuel slinger[J]. Journal of Aerospace Power, 2012, 27(7):1517-1522. (in Chinese) [10] 蒋雪辉. 气液2相离心甩油盘设计[J]. 航空发动机, 2016, 42(2):7-10. JIANG X H. Design of a gas-liquid two-phase slinger[J]. Aeroengine, 2016, 42(2):7-10. (in Chinese) [11] 陈晓丽, 蒋雪辉, 何悟, 等. 微小型甩油盘式燃烧室若干关键技术研究[J]. 推进技术, 2016, 37(2):296-303. CHEN X L, JIANG X H, HE W, et al. A study on key technologies of micro combustor with a slinger injector[J]. Journal of Propulsion Technology, 2016, 37(2):296-303. (in Chinese) [12] 刘睿. 甩油盘雾化性能测试及雾化特性分析[D]. 北京:北京航空航天大学, 2018.LIU R. Atomization performance test and characteristics analysis of fuel slinger[D]. Beijing:Beihang University, 2018. (in Chinese) [13] 李宏伟. 甩油盘的雾化试验台建设及雾化特性分析[D]. 北京:北京航空航天大学, 2018.LI H W. Construction of the test bench used for experimental study of atomization performance on a fuel flinger in small aero Engine[D]. Beijing:Beihang University, 2018. (in Chinese) [14] 叶宇隆. 直连式甩油盘雾化特性的数值模拟[D]. 北京:北京航空航天大学, 2018.YE Y L. A simulation of the fuel slinger with a tube welded on it[D]. Beijing:Beihang University, 2018. (in Chinese)
2020, Vol. 60 
