PIV技术在超声速气流低热固相反应合成系统流场测量中的应用  

Applications of the PIV Technology in Measurement of the Flow Field of a Solid Phase Room-Temperature Synthesis System Based on Supersonic Gas-Flow

作　　者：左金 陈植 林俊 林学东 郭秋亭 范长海 Zuo Jin;Chen Zhi;Lin Jun;Lin Xuedong;Guo Qiuting;Fan Changhai(High Speed Aerodynamics Institute of 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：《山东化工》2020年第18期25-27,30,共4页Shandong Chemical Industry

基　　金：国家自然科学基金(编号:51327804)。

摘　　要：粒子图像测速是一种非接触式的流场测试技术,被广泛应用于液体或气体的流场测定。本文阐述了PIV技术的基本原理,并将PIV技术应用于超声速气流低热固相反应合成系统,介绍了实验装置和实验方法,测量了不同工作状态下粒子的速度场,结果表明,随着反应器入口气流总压的提高,颗粒撞靶前获得的速度增大,当总压大于1.2MPa后,粒子运动速度能达到在500~550m/s,验证了PIV流场测量技术应用于超声速气流低热固相反应合成系统流场特性研究的可行性。Particle image velocimetry(PIV)is a non-intrusive technique to measure the flow field,which is widely used in the single-phase liquid flow as well as in the air flow.The basic principle of PIV is described,Particle image velocimetry was applied to a solid phase room-temperature synthesis system based on supersonic gas-flow,the velocity distributions of the particle had been measured in different working conditions.The experimental facility and experimental method were introduced.As the total pressure of airflow at the inlet of the reactor increases,the velocity of particles before hitting the target increases.When the total pressure is greater than 1.2MPa,the velocity of particles can reach 500m/s^550m/s.The feasibility of PIV technology for study on properties of solid phase room-temperature synthesis system based on supersonic gas-flow.

关 键 词：PIV技术 超声速气流 流场 示踪粒子 

分 类 号：TQ031[化学工程]