Aerodynamic and Structural Characteristics of a Centrifugal Compressor Impeller

Applied Sciences

SenthilKumar Raman¹  HeuyDong Kim¹  TR Jebieshia² 

[1] Department of Mechanical Engineering, Andong National University, Andong 36729, Korea;FMTRC, Daejoo Machinery, Daegu 42721, Korea;

关键词: Fluid–Structure Interaction (FSI);    flow characteristics;    impeller;    performance analysis;    compressor blade;    von Mises stress;   

DOI  :  10.3390/app9163416

来源: DOAJ

【 摘 要 】

The present study focuses on the aerodynamic performance and structural analysis of the centrifugal compressor impeller. The performance characteristics of the impeller are analyzed with and without splitter blades by varying the total number of main and splitter blades. The operating conditions of the compressor under centrifugal force and pressure load from the aerodynamic analysis are applied to the impeller blade and hub to perform the one-way Fluid−Structure Interaction (FSI). For the stress assessment, maximum equivalent von Mises stresses in the impeller blades are compared with the maximum allowable stress of the impeller material. The effects of varying the pressure field on the deformation and stress of the impeller are also calculated. The aerodynamic and structural performance of the centrifugal compressor at 73,000 rpm are investigated in terms of the efficiency, pressure ratio, equivalent von Mises stress, and total deformation of the impeller.

【 授权许可】

Unknown