Three-Dimensional Numerical Simulation of Steam Turbine Exhaust Channel Considering Pipeline and Four Wall Reinforcement

Abstract

A three-dimensional numerical simulation of the internal structure of the exhaust channel was carried out by using Fluent software. A three-dimensional model was established by step-by-step simulation of the internal structure of the exhaust pipe performance impact. The results show that the support pipe and the four-wall stiffeners increase the complexity of the flow field. By blocking the effect of the vortex, the static pressure recovery capacity of the exhaust cylinder is improved and the uniformity of the flow rate of the throat outlet section is reduced, but the total pressure loss was increased.