翼型优化在人工造流中的计算分析  

Calculation and analysis of airfoil optimization in artificial flow

作　　者：陈云帆 蔡许 张华 杨陈 汪源 徐云峰 CHEN Yunfan;CAI Xu;ZHANG Hua;YANG Chen;WANG Yuan;XU Yunfeng(College of Oceanography,Hohai University,Nanjing,Jiangsu 210098,China;Nanjing Yanfeng Adient Seat Co.Ltd.,Nanjing,Jiangsu 211500,China;Research Institute of Chemical Machinery,Hefei University of Technology,Hefei,Anhui 230002,China;Research Institute of Nanjing Hegong Intelligent Environmental Protection Co.Ltd.,Nanjing,Jiangsu 211500,China;Lanshen Co.Ltd.,Nanjing,Jiangsu 211500,China)

机构地区：[1]河海大学海洋学院,江苏南京210098 [2]南京延锋安道拓座椅有限公司,江苏南京211500 [3]合肥工业大学化工机械研究所,安徽合肥230002 [4]南京合工智能环保研究院有限公司,江苏南京211500 [5]蓝深集团股份有限公司,江苏南京211500

出　　处：《排灌机械工程学报》2020年第2期170-175,193,共7页Journal of Drainage and Irrigation Machinery Engineering

基　　金：国家水泵及系统工程技术研究中心开放基金资助项目(PA2017GKYK0013)

摘　　要：针对国内潜水搅拌机主要依靠经验来选型以满足工程需求的问题,将潜水搅拌机设计与轴流泵相结合,利用轴流泵的水力设计方法——流线法对潜水搅拌机进行设计.采用多面体网格和边界棱柱层网格的混合网格划分方式,经CFD数值计算验证,得到的初始模型水力效果较好.在此基础上,统计初始模型速度环量分布规律,通过改变潜水搅拌机的出口安放角来改变速度环量沿径向的分布,对叶片翼型进行优化设计,得到了5种优化后的潜水搅拌机水力模型.在恒功率下进行对比分析,根据性能评判标准,最终发现环量分布规律1是潜水搅拌机搅拌效果最佳的翼型特征.研究可为潜水搅拌机叶片优化设计提供坚实的理论基础.Airfoil optimization is an important method in hydraulic machinery design,which can effectively improve the efficiency of artificial flow.Submersible mixer is an important artificial flow-making equipment,and its design is connected with axial flow pump in the background where the domestic mainly relies on experience to meet the needs of engineering selection.The submersible mixer was designed by using axial flow pump airfoil optimization—streamline method,and the polyhedral meshes and boundary prismatic meshes were adopted.It was found after CFD numerical calculation that the designed initial model had better hydraulic performance.On this basis,the distribution of velocity circulation in the initial model was analyzed.The blade was optimized by changing the outlet angle of submersible mixer to change the radial distribution of velocity circulation,and five kinds of optimized hydraulic models of submersible mixer were obtained.Comparative analysis was carried out at constant power.According to the performance evaluation criteria,the loop quantity distribution rule 1 is the airfoil characteristic with the best mixing effect of submersible mixer.

关 键 词：潜水搅拌机 翼型优化 人工造流 叶片设计 比功率 数值计算 

分 类 号：X703[环境科学与工程—环境工程] S277.9[农业科学—农业水土工程]