基于PIV技术的复合流道板式结构实验

PIV-Technique-based Experiment on Plate Structure with Compound Flow Channel

目的在包装工程流场测量的研究中,验证粒子图像测速(PIV)技术的可行性。方法用超白玻璃制作复合流道板式换热器的模型,基于PIV技术采集被测区域图像,应用互相关分析法进行计算,获得流场数据,并与数值模拟结果比对进行验证。结果实验结果流型清晰,数据和数值模拟基本一致。结论PIV技术可应用于流动复杂、非接触的包装工程类的流场测量,且超白玻璃是一种理想实验材料,能够为拓展该领域的探索思路提供参考。

The work aims to verify the feasibility of particle image velocimetry（PIV） technique in the process of studying the flow field measurement of packaging engineering. The model of the plate heat exchanger with compound corrugation flow channels was made with ultra clear glass and the images of observed area were collected based on PIV technique. The cross-correlation analysis method was used for calculation to obtain the flow field data. Such data were compared with numerical simulation results for verification. The experiment results showed that the flow pattern was clear, and the data and numerical simulation were basically consistent. PIV technique can be applied to the measurement of flow field of non-contact packaging engineering with complex flow and the ultra clear glass is a kind of ideal material that can provide reference for the exploring ideas to expand such field.