(1.Tianjin North Great Power Turbocharging Technology Co.,Ltd.,Tianjin 300405,China;
2.The Armored Forces Military Representative Bureau,Beijing 100851,China;
3.Military Representative Office of PLA in No.318 Factory,Beijing 100053,China)
The numerical simulation and flow field analysis of a VGT turbocharger were conducted by Fine/Turbo software. The process of modeling and analyzing was first introduced, the simulation method of MAP in the side of turbine was researched and the simulation results were compared with test data in the end. The results show that the numerical simulation and flow field analysis method is feasible to predict the performance of VGT turbocharger, which can meet the selection and optimization requirements of turbocharger multischeme performance.