摘要
为了研究翼型最大厚度与最大拱度位置对轴流泵水力性能的共同影响,以“儒可夫斯基翼型”为基础翼型,对轴流泵叶片的设计参数进行调整,通过数值模拟的方法,分析翼型最大厚度位置及最大拱度位置对轴流泵水力性能的影响。首先对轴流泵进行单因素分析,分别针对翼型最大厚度位置和翼型最大拱度位置,保持水泵其余设计参数不变,对设计的不同叶轮模型进行数值模拟计算,再将2者协同考虑,最后取最优设计结果进行不同工况下轴流泵水力性能分析。设计结果表明,最大翼型厚度位置的理想取值范围为(0.175~0.25)L,翼型最大拱度位置的推荐取值范围为(0.6~0.7)L。同时发现当参数κ取为0~0.07时,水泵综合性能较好。研究可为轴流泵高效设计提供一定的理论基础及设计依据。
In order to study the influence of maximum thickness position and maximum camber position of airfoil on the hydraulic performance of the axial-flow pump,the design parameters of axial flow pump vane is adjusted on the basis of Joukowski airfoil.Through the method of numerical simulation,the influence of the maximum thickness position and maximum camber position on the hydraulic performance of the axial flow pump is analyzed.Firstly,based on the maximum thickness position and the maximum camber location of the airfoil,a single-factor analysis is carried out on the axial-flow pump,and the other design parameters of the axial-flow pump remained unchanged.Different impeller models for numerical simulation calculation are created.Secondly,both the maximum thickness position and the maximum camber position are taken into consideration in the design of the vane.Finally,the optimal design result is selected to analyze its hydraulic performance under different working conditions.The design results show that the ideal value range of the maximum airfoil thickness position is(0.175~0.25)L,and the recommended value range of the maximum airfoil camber position is(0.6~0.7)L.At the same time,it is found that when the parameterκis within the range of 0~0.07,the comprehensive performance of the pump is better.This paper serve as a certain theoretical basis and design basis for the design of axial flow pumps.
作者
张萌
石丽建
王燕
郑宇航
梁佳辉
刘聪
ZHANG Meng;SHI Li-jian;WANG Yan;ZHENG Yu-hang;LIANG Jia-hui;LIU Cong(College of Hydraulic Science and Engineering, Yangzhou University, Yangzhou 225009, Jiangsu Province, China;College of Mathematical Science, Yangzhou University, Yangzhou 225002, Jiangsu Province, China;School of Information Engineering, Yangzhou University, Yangzhou 225127, Jiangsu Province, China)
出处
《中国农村水利水电》
北大核心
2020年第9期8-15,共8页
China Rural Water and Hydropower
基金
国家自然科学基金项目(51376155)
江苏省自然科学基金项目(BK20190914)
中国博士后科学基金资助项目(2019M661946)
江苏省高校自然科学研究项目(19KJB570002)
扬州市自然科学基金项目(YZ2018103)
江苏省水利科技项目(2017031)
江苏省高校优势学科建设项目(PAPD)
扬州大学大学生科创基金项目(x20190463)。
关键词
轴流泵
翼型厚度
翼型拱度
儒可夫斯基翼型
数值模拟
水力性能
axial-flow pump
airfoil thickness
airfoil camber
Joukowski airfoil
numerical simulation
hydraulic performance