移动插板容腔对发动机压力畸变流场的影响  

Effect of movable flat baffle's plenum volume on pressure distortion flow field of engine

作　　者：彭生红 钟华贵 吴锋 田应维 李腾 邝文 PENG Shenghong;ZHONG Huagui;WU Feng;TIAN Yingwei;LI Teng;KUANG Wen(College of Energy and Power Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China;Science and Technology on Altitude Simulation Laboratory,Sichuan Gas Turbine Establishment,Aero Engine Corporation of China,Mianyang Sichuan 621000,China)

机构地区：[1]南京航空航天大学能源与动力学院,南京210016 [2]中国航空发动机集团有限公司四川燃气涡轮研究院高空模拟技术重点实验室,四川绵阳621000

出　　处：《航空动力学报》2018年第9期2242-2247,共6页Journal of Aerospace Power

摘　　要：基于移动插板容腔对发动机进气压力畸变流场影响,获取了移动插板容腔对小进口直径发动机流场扰动特性。通过发现问题、分析问题、数值模拟、改进设计与试验验证等技术过程,证明了移动插板容腔降低了进气压力畸变流场强度,其影响范围为进口直径小于200mm的发动机,且为避免移动插板容腔对发动机进口气流流场的扰动,设计压力畸变装置时应采取相应措施减小插板容腔体积。Based on the effect of movable flat baffle＇s plenum volume on inlet pressure distortion flow field of engine,the destabilization characteristic of the movable flat baffle＇s plenum volume on small flux tube engine air flow field was obtained.Through the process of problem discovery,analysis,numerical simulation,improved design,and test verification,the movable flat baffle＇s plenum volume was proved in reducing the distortion intensity of inlet pressure flow field,and the engine of less than 200 mm diameter flux tube was covered within the range of effect.In order to avoid destabilization to the inlet air flow field of the movable flat baffle＇s plenum volume,corresponding measures should be taken to reduce the volume in the design of the pressure distortion device.

关 键 词：移动插板 容腔 压力畸变 流场 扰动 

分 类 号：V241.1[航空宇航科学与技术—飞行器设计]