粒子分离器结构优化对吞雨性能改进研究  

Investigation on rain-swallowing performance improvement by structure optimization of a particle separator

作　　者：杨群杰 林阿强 王家友 马佳乐 刘高文[1] YANG Qunjie;LIN Aqiang;WANG Jiayou;MA Jiale;LIU Gaowen(School of Power and Energy,Northwestern Polytechnical University,Xi′an 710129,China;Research&Development Institute of Northwestern Polytechnical University in Shenzhen,Shenzhen 518057,China;Shenyang Engine Research Institute,Aero Engine(Group)Corporation of China,Shenyang 110015,China)

机构地区：[1]西北工业大学动力与能源学院,陕西西安710129 [2]西北工业大学深圳研究院,广东深圳518057 [3]中国航空发动机集团有限公司沈阳发动机研究所,辽宁沈阳110015

出　　处：《哈尔滨工程大学学报》2024年第7期1305-1313,共9页Journal of Harbin Engineering University

基　　金：陕西省自然科学基础研究计划(2023-JC-YB-305);中国博士后科学基金项目(2023M742834);广东省基础与应用基础研究基金项目(2021A1515110063);航空发动机及燃气轮机基础科学中心项目(P2022-A-II-007-001).

摘　　要：本文采用欧拉-拉格朗日多相流粒子追踪模型对某型涡轴发动机粒子分离器进行了数值模拟,利用正交试验设计的原理进行试验并完成了对粒子分离器结构的优化,研究并揭示了粒子分离器结构参数对其分离效果和吞雨性能的影响规律。结果表明:在干工况条件下,与原型相比,优化后的模型扫气比降低4.3%,总压损失系数降低0.03%;在吞雨工况下,相比于原型,优化后的模型扫气比降低0.97%,总压损失系数降低0.039%,分离效率提高5.5%。本次结构优化基本达到了粒子分离器低总压损失高分离效率的优化要求,并且对粒子分离器吞雨性能有较大的提升。The Eulerian-Lagrangian multiphase flow particle tracking model was used to numerically simulate the particle separator in a turboshaft engine,and the theory of orthogonal experimental design was employed to conduct the experiment and optimize the structure of the particle separator.The effects of the structure parameter of the particle separator on the separation effect and rain-swallowing performance were examined.The results disclosed that,compared with the original model,in dry conditions,the scavenging ratio of the optimized model decreased by 4.3%,and the total pressure loss coefficient decreased by 0.03%;in rain-swallowing conditions,the former decreased by 0.97%,the latter decreased by 0.039%,and the separation efficiency increased by 5.5%.Therefore,this optimization design basically satisfies the requirements of low total pressure loss and high separation efficiency.In addition,the rain-swallowing performance of the particle separator is improved to a great degree.

关 键 词：涡轴发动机 粒子分离器 正交试验设计 优化设计 吞雨 扫气比 总压损失系数 分离效率 

分 类 号：V231.1[航空宇航科学与技术—航空宇航推进理论与工程]