0604 排気段落不均一流出条件を考慮したタービン排気室性能のCFD解析(OS6-1 流体機械のCFD解析最前線,オーガナイズドセッション)

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  • 0604 CFD Analyses of Turbine Exhaust Hood Performances with Nonuniform Inlet Flows

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Low pressure exhaust hood is one of the important parts in steam turbines, since the aerodynamic loss of exhaust hoods is nearly the same level of the loss of stator and rotor blading in low pressure steam turbines and there seems to be not little room remained for the enhancement of steam turbine efficiency. This paper presents the result of exhaust hood CFD analyses using last stage exit velocity distributions measured in the real scale development steam turbine as the inlet boundary condition to improve the accuracy of the CFD analysis.

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