摘要
为了研究叶片包角β对离心泵空化性能的影响,以100MP200单级单吸离心泵为模型,在保持其他叶轮几何参数不变的情况下,设计了4种不同包角β的叶轮,基于完全空化模型和RNGk—ε湍流模型对离心泵进行数值模拟,分析不同包角下叶轮流道内的空化性能和空泡体积分布规律。结果表明:叶片包角β对离心泵的扬程和效率有明显相关性,在叶片包角β=160°时具有最佳的扬程和效率;最佳包角为β=160°的叶轮具有最佳的抗空化性能,空化区域面积比其他三种包角叶轮有显著的减小。
In order to study the effects of blade wrap angle on cavitation performance of centrifugal pump,the 100MP200 centrifugal pump is chosen as research object.Four different wrap angle of impeller blades were designed,while the volute and other geometric parameters were kept constant.Based on complete cavitation model and RNG k-εturbulence model,the cavitation performance of centrifugal pump was studied by numerical simulation.the cavitation performance and cavitation volume distribution under different wrap angle was analysed.The results show that:the blade wrap angle has a significant effect on the pump lift and the efficiency of centrifugal pump.When the blade wrap angle atβ=160°,it has the best lift and efficiency.The impeller with the wrap angleβ=160°has the best anti cavitation performance,the cavitation area has a significant decrease compared with the other three kinds of wrap angle impellers.
作者
牟介刚
施郑赞
谷云庆
王浩帅
赵李盼
简捷
MOU Jiegang;SHI Zhengzan;GU Yunqing;WANG Haoshuai;ZHAO Lipan;JIAN Jie(College of Mechanical Engineering,Zhejiang University of Technology,Hangzhou 310014,China)
出处
《浙江工业大学学报》
CAS
北大核心
2019年第1期24-28,共5页
Journal of Zhejiang University of Technology
基金
浙江省自然科学基金资助项目(LY19E050003)
浙江省公益技术应用研究计划项目(2017C31025)
国家自然科学基金资助项目(51779226)
关键词
离心泵
包角
空化
数值模拟
优化设计
centrifugal pump
wrap angle
cavitation
numerical simulation
optimal design
