1.2m风洞进气道分布式流量节流机构系统设计  

Design of the Distributed Flow Regulation Device System for 1.2m Wind Tunnel Inlet Test

作　　者：荣祥森 李方吉 赵清 段帅 RONG Xiangsen;LI Fangji;ZHAO Qing;DUAN Shuai(High Speed Aerodynamics Institute,China Aerodynamics Research and Development Center,Mianyang 621000,China)

机构地区：[1]中国空气动力研究与发展中心高速空气动力研究所,四川绵阳621000

出　　处：《自动化仪表》2021年第2期24-27,共4页Process Automation Instrumentation

摘　　要：目前,1.2 m风洞现有的节流锥“集中”式流量调节方式只能进行单发进气道试验。为验证风洞进行双发进气道试验的可行性,提出了一种分布式流量调节方法。该方法提高了节流机构的流通效率和流量调节能力,能够有效减小流量节流机构的外形尺寸。对分布式流量调节机构与测控系统进行了详细设计,并通过试验进行了验证。试验结果表明:分布式流量调节装置、流量调节控制系统和动态采集系统设计合理,满足试验需求。分布式流量节流机构的流量能够满足1.2 m风洞进气道试验的流量需求,能够为1.2 m风洞双发进气道试验技术建立提供技术支持;采用分布式流量调节方法能够有效减小节流与流量测量机构的外形尺寸,降低机构安装的空间要求。The current throttle cone“concentrated”flow adjustment mode can only be used in single transmission inlet test.In order to verify the feasibility of the test of the air inlet of the wind tunnel,a distributed flow regulation method is proposed.This method improves the flow efficiency and flow adjustment ability of the throttle mechanism,and can effectively reduce the appearance size of the flow throttle mechanism.The distributed flow regulation mechanism and the measurement and control system were designed and verified by experiment.The experimental results show that the distributed flow adjustment device,the flow control system and the dynamic collection system are designed to meet the test requirements.The flow of distributed flow throttle mechanism can meet the flow demand of 1.2 m wind tunnel inlet test,and can provide technical support for the establishment of the two delivery airway test technology of 1.2 m wind tunnel.The distributed flow regulation method can effectively reduce the appearance size of the throttle and flow measurement mechanism,and reduce the requirement of the space of the organization.

关 键 词：进气道 流通效率 流量调节 测控系统 单发进气道 节流机构 动态采集 双发进气道 

分 类 号：TH-39[机械工程]