改进PIV技术在测量搅拌槽内流场中的应用  

Application of the modified PIV for measurement of flow field in stirred tank

作　　者：聂毅强[1] 包雨云[1] 施力田[1] 

机构地区：[1]北京化工大学化学工程学院,北京100029

出　　处：《北京化工大学学报（自然科学版）》2002年第1期6-9,共4页Journal of Beijing University of Chemical Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目 (2 9976 0 0 2 ) ;橡塑新材料合成国家工程研究中心基金资助项目

摘　　要：简化了粒子成像测速技术 (PIV)的数据采集系统 ,通过AUTOCAD的二次开发 ,改进了PIV的图像处理。降低了成本 ,提高了测量精确度 ,并使之能适用于大尺寸、流质透明度较差的搅拌槽体系的流场测量。将改进PIV技术应用于搅拌槽内质量分数为 0 6 %CMC水溶液和清水流动场的测量 ,粒子图像清晰。A modified Particle Image Velocimetry (PIV) was developed in this work with simplified data acquisition and image processing system. The modified PIV could be used for measurement of the flow field in a big size tank with poor transparence fluid. Experiments were carried out in a baffled stirred tank of 0 5 m diameter filled with 0 6%CMC aqueous solution and water respectively. The flow field generated respectively by a 45°pitched blade turbine (PBT) and a 2 blade CBY was measured by using the modified PIV.

关 键 词：PIV技术 搅拌槽 流动场测量 AUTOLISP语言 粒子成像测速技术 流速测量 图像处理软件 

分 类 号：TQ051.7[化学工程] TQ027.2