Analysis of Three-Dimensional Complex Fluid Flow and Temperature Distribution in the End Region of a Turbogenerator

摘要

Distribution of complex fluid flow is an important factor that affects the temperature distribution of the end parts in the end region of a turbogenerator. In this paper, a turbogenerator is considered as an example; the fluid flow velocity and pressure values obtained from flow network calculations are applied to the end region as boundary conditions, and the losses obtained from electromagnetic field calculations are applied to the end region as heat sources in a fluid and thermal coupling field. Furthermore, mathematical and geometric models of 3-D fluid and thermal coupling of the end region are established. The distributions of the complex fluid velocity and fluid temperature in the turbogenerator end region are investigated in detail. Moreover, the temperature distribution of the end parts is determined. Comparison of measurement results of the temperature of the end parts with the corresponding calculation results shows their good agreement.