旋流器流量分配对三级旋流流场特性的影响

推进技术 ›› 2017, Vol. 38 ›› Issue (1): 134-140.

旋流器流量分配对三级旋流流场特性的影响

赵自强¹,何小民^1,2,丁国玉¹,李明玉¹,江平¹,黄卫东¹,赵玉玲¹

南京航空航天大学能源与动力学院，江苏省航空动力系统重点实验室，江苏南京 210016,南京航空航天大学能源与动力学院，江苏省航空动力系统重点实验室，江苏南京 210016; 航空发动机协同创新中心，北京 100191,南京航空航天大学能源与动力学院，江苏省航空动力系统重点实验室，江苏南京 210016,南京航空航天大学能源与动力学院，江苏省航空动力系统重点实验室，江苏南京 210016,南京航空航天大学能源与动力学院，江苏省航空动力系统重点实验室，江苏南京 210016,南京航空航天大学能源与动力学院，江苏省航空动力系统重点实验室，江苏南京 210016,南京航空航天大学能源与动力学院，江苏省航空动力系统重点实验室，江苏南京 210016

发布日期:2021-08-15
作者简介:赵自强，男，博士生，研究领域为航空发动机燃烧理论和技术。
基金资助:
江苏省研究生培养创新工程(KYLX_0308)。

Effects of Air Proportions on Flow Characteristics of Swirling Flow Generated by Triple-Swirlers

Nanjing University of Aeronautics and Astronautics，Jiangsu Province Key Laboratory of Aerospace Power Systems，Nanjing 210016，China,Nanjing University of Aeronautics and Astronautics，Jiangsu Province Key Laboratory of Aerospace Power Systems，Nanjing 210016，China; Co-Innovation Center for Advanced Aero-Engine，Beijing 100191，China,Nanjing University of Aeronautics and Astronautics，Jiangsu Province Key Laboratory of Aerospace Power Systems，Nanjing 210016，China,Nanjing University of Aeronautics and Astronautics，Jiangsu Province Key Laboratory of Aerospace Power Systems，Nanjing 210016，China,Nanjing University of Aeronautics and Astronautics，Jiangsu Province Key Laboratory of Aerospace Power Systems，Nanjing 210016，China,Nanjing University of Aeronautics and Astronautics，Jiangsu Province Key Laboratory of Aerospace Power Systems，Nanjing 210016，China and Nanjing University of Aeronautics and Astronautics，Jiangsu Province Key Laboratory of Aerospace Power Systems，Nanjing 210016，China

Published:2021-08-15

摘要/Abstract

摘要： 为探讨三级旋流器流量分配对旋流器出口流场的影响，针对旋向组合为“顺时针-逆时针-逆时针”，内级、中间级、外级旋流器旋流数分别为1.4，1.0，0.6的三级旋流器，开展了相同进口条件下不同流量分配方案的数值研究。研究结果表明:当内级旋流器流量分配一定时，随着中间级/外级气流流量比的增大，回流区轴向长度、径向宽度，回流率及旋流数逐渐增大；当中间级旋流器流量分配一定时，随着内级/外级气流流量比的增大，回流区轴向长度、径向宽度、回流率及旋流数逐渐减小；当外级旋流器流量分配一定时，随着内级/中间级气流流量比的增大，回流区轴向长度、径向宽度，回流率及旋流数逐渐减小。

关键词: 流量分配；旋流数；三级旋流器；回流区；数值模拟；燃烧室

Abstract: The effects of air proportion on flow characteristics of swirling flow generated by triple-swirlers were discussed. The studied triple-swirlers have same rotational combination with clockwise inner swirler，counter-clockwise intermediate swirler，counter-clockwise outer swirler and the inner swirl number，intermediate swirl number and outer swirl number are 1.4，1.0 and 0.6，respectively. The numerical simulation methods were utilized to investigate different air proportion schemes in the same inlet condition. The numerical results show that the numerical results match well with the PIV measurements. And the numerical simulation can be employed to analyze the effects of air proportion on flow characteristics. For triple-swirlers with a constant inner air proportion，the length and width of the Central Toroidal Recirculation Zone(CTRZ)，as well as the recirculated mass flow rate and swirl number increase as the increasing ratio of intermediate air proportion to outer air proportion. For triple-swirlers with a constant intermediate air proportion，the length and width of the CTRZ，the recirculated mass flow rate and swirl number decrease as the increasing ratio of inner air proportion to outer air proportion. For triple-swirlers with a constant outer air proportion，the length and width of the CTRZ，the recirculated mass flow rate and swirl number decrease as the increasing ratio of inner air proportion to intermediate air proportion.

Key words: Air proportion；Swirl number；Triple-swirler；Central toroidal recirculation zone；Numerical simulation；Combustor

赵自强,何小民,丁国玉,李明玉,江平,黄卫东,赵玉玲. 旋流器流量分配对三级旋流流场特性的影响[J]. 推进技术, 2017, 38(1): 134-140.

ZHAO Zi-qiang¹,HE Xiao-min^1,2,DING Guo-yu¹,LI Ming-yu¹,JIANG-Ping¹,HUANG Wei-dong¹,ZHAO Yu-ling¹. Effects of Air Proportions on Flow Characteristics of Swirling Flow Generated by Triple-Swirlers[J]. Journal of Propulsion Technology, 2017, 38(1): 134-140.

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