Numerical simulation on internal flow field for centrifugal compressor

It aims at studying three-dimensional flow field of compressor. Firstly approximately size parameters of volute and impeller in automotive turbocharger centrifugal compressor are determined after model analysis of prediction compressor performance model on the basis of centrifugal type runoff fan. Then,three-dimensional model of the centrifugal compressor was established based 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.