中国空间站燃烧科学实验系统PIV单元地面试验  

Ground Experiment Investigation of PIV Unit for Combustion Science Experimental System of China Space Station

作　　者：何丽芳 郑会龙[2] 王希坤 杨肖芳 张晓武 HE Lifang;ZHENG Huilong;WANG Xikun;YANG Xiaofang;ZHANG Xiaowu(Research Center of Fluid Machinery Engineering and Technology,Jiangsu University,Zhenjiang 212013;Institute of Engineering Thermophysics,Chinese Academy of Sciences,Beijing 100190)

机构地区：[1]江苏大学流体机械工程技术研究中心,镇江212013 [2]中国科学院工程热物理研究所,北京100190

出　　处：《空间科学学报》2022年第6期1152-1160,共9页Chinese Journal of Space Science

基　　金：中国载人航天工程计划燃烧科学实验系统项目资助。

摘　　要：中国空间站燃烧科学实验系统是用于开展微重力燃烧实验研究的综合性科学实验平台,可以实现燃烧流场测量。为了验证燃烧科学实验系统粒子图像测速(PIV)单元对燃烧流场测量的功能与可行性,本文基于与在轨状态一致的连续激光器和相机的空间布局,搭建了地面层流圆孔射流试验平台,选取Al_(2)O_(3),TiO_(2),ZrO_(2)三种示踪粒子进行冷态试验与热态试验。试验结果表明,自主研制Nd∶YVO4泵浦连续激光器偏光角度合适,能照亮被测流场主流区域,燃烧科学实验系统PIV单元可用于低速燃烧流场测量;相同工况下,Al_(2)O_(3)粒子在冷态试验测量的速度值更接近于理论值,速度幅值比更接近1,更适用于低速流体测量。The Combustion Science Experimental System of China Space Station is a comprehensive scientific platform for microgravity combustion experiment research,which is feasible for velocity measurement.In order to test the feasibility function of Particle Image Velocimetry(PIV),an experimental platform for laminar circular orifice jet,which has the same spatial layout of the laser and camera as that in-orbit operation,was built for reacting flow field and non-reacting flow field experiment.Al_(2)O_(3),TiO_(2)and ZrO_(2)were selected as tracer particles.The experimental results indicate that the combustion science experimental system of PIV unit is feasible for low-speed combustion field measurement.Under the same conditions,the obtained velocities by using Al_(2)O_(3)particles are closer to analytical values with velocity amplitude ratio nearest to 1,which suggests that Al_(2)O_(3)particles are more suitable for low-speed field.The present study can provide the selection basis for particle species in ground-space comparison experiments.

关 键 词：燃烧科学实验系统 PIV单元地面试验 冷态流场 热态流场 

分 类 号：V524[航空宇航科学与技术—人机与环境工程]