Abstract
This article first describes the structure of centrifugal supercharger, working principle and applications, status and so on. Again the idea of centrifugal supercharger structure, including the structure of leaf and scroll idea, and through solidworks centrifugal supercharger on the modeling of various components and assembly. Then studied how the turbocharger model for mesh, add the boundary conditions and the added convergence objective, to do with COSMOSFloWorks its internal flow field of the simulated to obtain the booster within the pressure distribution flow path, and calculate the efficiency of the turbocharger. Finally the results analyzed, including the lack of this study and future prospects.