摘要
以压气机的三维流场作为主要研究对象,离心式径流风机为基础模型,确定车用增压器压气机蜗壳和叶轮大致尺寸参数,在此基础上,建立三维整体装配模型,对其进行了数值模拟,对各种离心压气机模型的性能进行预测,分析不同数量、形态叶片的叶轮对效率性能和内部流场压力速度分布的影响。通过计算结果的校核以确定离心压气机叶轮的合理配置方案,了解该离心压气机特定工况下的内部流动情况,以达到设计目标的要求,并为实现快速设计提供依据。
It aims at studying three-dimensional flow field of compressor. Firstly approximately size parameters of volute and impeller in automotive turbocharger centrifugal compre model analysis of prediction compressor performance model on the basis of ce Then,three-dimensional model of the centrifugal compressor was established base ssor are determined after ntrifugal type runoff fan. d on computational simulation and analysis. Secondly, the effect of the shape of volute, the morphology of impeller, the quantitative distribution on the overall performance and the effect of flow field are investigated by numerical simulation of the centrifugal compressor. The allocation of reasonable scheme was determine in order to check calculating the results ,And the performance and internal flow of the centrifugal compressor is analyzed in special conditions in order to provide evidence for achieving rapid design.
出处
《机械设计与制造》
北大核心
2010年第4期198-200,共3页
Machinery Design & Manufacture
基金
浙江省科技计划项目(2006C31057)
浙江科技学院校级教学研究立项项目(2006-B12)
关键词
压气机
内部流场
数值模拟
Compressor
Internal flow field
Numerical simulation
