两种小尺度旋流杯方案的喷雾特性研究

推进技术 ›› 2014, Vol. 35 ›› Issue (7): 950-955.

两种小尺度旋流杯方案的喷雾特性研究

李振祥¹,郭志辉¹,胡好生²

北京航空航天大学能源与动力工程学院，北京 100191;北京航空航天大学能源与动力工程学院，北京 100191;中国航空工业集团公司中国航空动力机械研究所，湖南株洲 412002

发布日期:2021-08-15
作者简介:李振祥(1988—)，男，硕士生，研究领域为航空发动机燃烧室燃油雾化。

A Study on Spray Characteristics of Two Small Scale

School of Energy and Power Engineering，Beijing University of Aeronautics and Astronautics，Beijing 100191，China;School of Energy and Power Engineering，Beijing University of Aeronautics and Astronautics，Beijing 100191，China;China Aviation Powerplant Research Institute，Aviation Industry Corporation of China，Zhuzhou 412002，China

Published:2021-08-15

摘要/Abstract

摘要： 为了获得小尺度旋流杯及其改进型的喷雾特性，采用PDA (Particle Dynamics Analyze) 测量系统进行了实验研究，测量了单头部和三头部情况下的流场和喷雾场。结果表明:小尺度旋流杯的流场和喷雾性能对结构尺寸的变化非常敏感，相比于原方案，改进方案显著改善了该旋流杯的喷雾特性。尺寸效应对小尺度旋流杯的影响很大，在单头部受限与不受限两种情况下，改进方案的喷雾锥角相差约10°～15°，且受限条件更能反映旋流杯的实际喷雾特性。三头部时旋流杯的流场、雾化特性与单头部基本一致，单头部受限空间实验基本能够反映旋流杯的流场及雾化特性，但在实际环形燃烧室结构中还需要考虑喷雾间的影响。

关键词: 流场；喷雾特性；旋流杯；单头部；三头部

Abstract: The spary characteristics of small scale swirler cups were studied experimentally by a two-dimensional Particle Dynamics Analyzer(PDA). The flow field and spray field were measured for both the case with single-nozzle and the case with three-nozzle operation. The results show that the flow field and spray characteristics of small scale swirler cups are very sensitive to the structure and the confinement effect. Compared to the original swirler cup scheme，the modified scheme can improve the spray characteristics significantly. The spary angle of the improved scheme with confinement is about 10°～15° lager than that without confinement. The confined case can really reflect the actual spray characteristics. The results of the experiment about the flow field and the atomization characteristics for the case of single-nozzle and three-nozzle are essentially consistent. However， in the practical annular combustor，the interaction of the spray between the nozzles should be considered.

Key words: Flow field；Spray characteristics；Swirler cup；Single-nozzle；Three-nozzle

李振祥,郭志辉,胡好生. 两种小尺度旋流杯方案的喷雾特性研究[J]. 推进技术, 2014, 35(7): 950-955.

LI Zhen-xiang¹,GUO Zhi-hui¹,HU Hao-sheng². A Study on Spray Characteristics of Two Small Scale[J]. Journal of Propulsion Technology, 2014, 35(7): 950-955.

参考文献

[1] 方昌德. 世界航空发动机手册 [M].北京: 航空工业出版社, 1996.
[2] Sampath P, Verhiel J, Mcaldon K. Low Emissions Technology for Small Viation Gas Turbines [R].AIAA 2003-2564.
[3] 彭云晖, 林宇震, 许全宏, 等. 双旋流空气雾化喷嘴喷雾、流动和燃烧性能[J].航空学报, 2008, 29(1): 1-14.
[4] Mongia H C, Al-Roub M. Swirl Cup Modeling Part 1 [R]. AIAA 2001-3576.
[5] Cai J, Fu Y, Elkady A, et al. Swirl Cup Modeling Part 4:Effect of Confinement on Flow Characteristics[R].AIAA 2003-0496.
[6] Jeng S M, Flohre, Mongia H C. Swirl Cup Modeling-Atomization [R].AIAA 2004-137.
[7] Fu Y Q, Cai J, Jeng S M, et al. Confinement Effects on the Swirling Flow of a Counter-Rotating Swirl Cup[R].ASME GT 2005-68622.
[8] Fu Y Q, Cai J, Jeng S M, et al. Characteristics of the Swirling Flow Generated by a Counter-Rotating Swirler[R]. ASME 2007-GT-5690.
[9] Wang H Y, McDonell V G, Sowa W A, et al. Experimental Study of a Model Gas Turbine Combustor Swirl Cup, Part Ⅰ:Two-Phase Characterization [J].Journal of Propulsion and Power, 1994, 10(4): 441-445.
[10] Wang H Y, McDonell V G, SamuelsenG S. Influence of Hardware Design on the Flow Field Structures and the Patterns of Droplet Dispersion, Part 1: Mean Quantities[J]. Journal of Engineering for Gas Turbines and Power, 1995, 117: 282-289.
[11] 于锦峰, 郭志辉, 张君锋, 等. 套筒长度对火焰筒流场和雾化特性的影响[J].航空动力学报, 2009, 24(11):2506-2513.
[12] Ateshkadi A, McDonell V G. Effect of Mixer on Fuel Spray Distribution, Emissions and Stability [R]. AIAA 98-0247.
[13] 邢小军, 徐行, 郭志辉, 等. 模型燃烧室冷态喷雾场的实验研究 [J].推进技术, 2000, 21(5): 61-65.(XING Xiao-jun, XU Hang, GUO Zhi-hui, et al. Experimental Study on Spray Field in Combustor by Phase Dopplor Analyzer[J].Journal of Propulsion Technology, 2000, 21(5):61-65.)
[14] 韩启祥, 徐铁军, 黄健. 双旋流器单头部模型燃烧室冷态流场试验 [J].航空动力学报, 2008, 23(8): 1370-1374.
[15] Boehm B, Dreizler A. Experimental Investigation of Turbulence Structure in a Three-nozzle Combustor [R].ASME 2007-GT-27111.(编辑:史亚红)收稿日期:2013-07-15；修订日期:2013-08-15。作者简介:李振祥(1988—),男,硕士生,研究领域为航空发动机燃烧室燃油雾化。E-mail:buaalzx@sina.cn