涡流发生器参数化建模方法的PIV实验研究  

PIV Experimental Studv on Parametric Modeling Method of Vortex Generator

作　　者：赵振宙[1] 苏德程 汪瑞欣 王同光[2] 郑源[1] 许波峰[1] ZHAO Zhen-Zhou;SU De-Cheng;WANG Rui-Xin;WANG Tong-Guang;ZHENG Yuan;XU Bo-Feng(College of Energy and Electric Engineering,Hohai University,Nanjing 211100,China;Jiangsu Key Laboratory of Hi-Tech research for wind turbine design,Nanjing University of Aeronautics&Astronautics,Nanjing 210016,China)

机构地区：[1]河海大学能源与电气学院,南京211100 [2]南京航空航天大学江苏省风力机设计高技术研究重点实验室,南京210016

出　　处：《工程热物理学报》2019年第9期2021-2026,共6页Journal of Engineering Thermophysics

基　　金：国家自然科学基金(No.51876054,No.11502070);国家重点基础研究发展计划(973计划)(No.2014CB046200);江苏省六大人才高峰资助项目(No.XNY-007)

摘　　要：首先,针对阵列式涡流发生器(VGs)参数化建模,考虑VGs叶片间相互干涉作用,给出了一种新的最大涡环量计算方法,来提高加VGs叶片的CFD模拟的精度和效率;研究结果显示该模型最大环量值计算精度较单VG叶片模型有明显地提高。其次,对平板上不同间距、不同攻角的一对VGs在三种不同来流风速下进行了PIV实验研究与参数化建模CFD研究,获取了0.7倍VGs高度处的速度矢量图,并进行了对比。对比分析发现:二者矢量图所反映出的规律基本一致,验证了阵列式VGs参数化模拟方法的可行性。Firstly,considering the interaction between VGs blades,parametric modelling for a pair of vortex generators(VGs)was developed to improve the accuracy and efficiency of the CFD simulation of the blades with VGs,which provides a new method for calculating the maximum circulation of the vortex.The research results show that the accuracy of the maximum circulation calculating from this model has an obvious improvement than that of models for single VG blade.Secondly,a pair of VGs with different gaps and angles of attack on the plate were studied through PIV experiments and CFD simulations for the parametric model under three different inlet wind speed,and the velocity vector graphs at 0.7 h of the VGs were obtained and compared.The comparative analysis shows that the laws reflected by the two are basically the same,which verifies the feasibility of the parametric simulation method of array VGs.

关 键 词：涡流发生器 参数化建模 PIV试验 数值模拟 

分 类 号：TK81[动力工程及工程热物理—流体机械及工程]