Numerical study on aerodynamic performance and particle erosion characteristics of flue gas turbine

The three-dimensional numerical simulation method is coupled with erosion and particle rebound models based on the results of high-temperature tests to systematically study gas-solid two-phase flow characteristics a flue gas turbine for first time. aerodynamic loss gas-steam mixtures mechanism in cascade under design non-design conditions are investigated. indicate that mixing cooling steam gas, secondary loss, separation significantly affect entropy increment rotor cascade. isentropic efficiency condition 78.74%. radial inflow wheel from axial clearance has impact effect mainstream enhancing generation development vortex When dimensionless rate reduced 1 0.6, increases by approximately 0.9%. By contrast, when 2, decreases 0.42%. leading trailing edges higher than those at other streamwise locations. edge blade-tip caused high-speed particles above 10?m, while root grinding 1-5-?m carried flow.