重庆理工大学学报（自然科学版）2016，Vol.30Issue(6)：1-5,5.DOI:10.3969/j.issn.1674-8425(z).2016.06.001
不同结构离心压气机内部流动特性的数值分析
Numerical Analysis of Internal Flow Characteristics on Different Structure of Centrifugal Compressor
摘要
Abstract
In order to research the influence of the internal flow centrifugal compressor with different position of vaneless diffuser outlet relative to the volute,this paper used the ANSYS-Fluent software to have numerical simulation of the machine which includes the inlet,impeller rotating,vaneless diffuser and asymmetrical volute,and analyzed the internal-flow characteristics of the two different structure forms compressor.Result shows that:the position of vaneless diffuser outlet relative has an obvious effect on the performance of the compressor to the volute,under the design conditions,and the pressure ratio of non-embedded diffuser and volute combinations is higher than the embedded,and the aerodynamic noise is lower than the embedded,but with the increase of mass flow rate,the performance of the embedded type compressor is better than non-embedded,and the speed conditions has little effect on the results.This result will provide a reference for improving the combination of diffuser and volute.关键词
压气机/数值模拟/内部流动特性/气动噪声Key words
compressor/numerical simulation/internal-flow characteristic/aerodynamic noise分类
交通工程引用本文复制引用
赖晨光,庄严,段孟华,曾宏强..不同结构离心压气机内部流动特性的数值分析[J].重庆理工大学学报（自然科学版）,2016,30(6):1-5,5.基金项目
国家自然科学基金资助项目 （）
