局部进气高速涡轮气动噪声控制方法研究  

Study on the Aeroacoustics Control Methods of High-speed Partial Admission Turbine

作　　者：赵辛午[1] 黄洪雁[1] 

机构地区：[1]哈尔滨工业大学能源科学与工程学院,黑龙江哈尔滨150001

出　　处：《节能技术》2016年第2期107-110,115,共5页Energy Conservation Technology

基　　金：973计划资助项目(613188020201)

摘　　要：随着高速涡轮在民用和军用领域的快速发展,其噪声问题受到人们越来越多的关注。本文对涡轮气动噪声的产生机理、数值计算方法以及设计过程中控制方法进行研究。针对局部进气高速涡轮机,为了抑制由动静叶干涉引起的单音辐射噪声,提出了增大喷嘴的几何出气角、喷嘴下俯、喷嘴单侧修型和增大动静叶间距的流道优化设计方法以控制涡轮机内的流动状况进而降低噪声,最后结合某型高速涡轮降噪优化设计案例总结了涡轮气动噪声优化设计体系流程。With the rapid development of high- speed turbine in the civil and military fields,the noise problem gets more and more attention from people. Through the study on the generating mechanism of aerodynamic noise,numerical calculation method and the research of control methods in the design process. For high- speed partial admission turbine,the fluid path optimal design methods including increasing the geometric exit flow angle of nozzle,nozzle pitchdown,singgle- side modification for nozzle,and increasing the distance between rotor and stator were proposed to improve the flow state to control the discrete noise induced by rotor- stator interaction,this article combines with a noise reduction optimization design case for a certain type of high- speed turbine and summarizes the turbine aerodynamic noise optimization design system processes.

关 键 词：涡轮 气动噪声 数值计算 控制方法 优化设计 

分 类 号：V231.3[航空宇航科学与技术—航空宇航推进理论与工程]