Mean-line Modeling of an Axial Turbine

2017 International Conference on Aerospace Technology, Communications and Energy Systems

航空航天工程;无线电电子学;能源学

Tkachenko, Andrey Yu^1 ; Ostapyuk, Ya A^1 ; Filinov, E.P.^1

Department of Aircraft Engine Theory, Institute of Engine and Power Plant Engineering, Samara National Research University, Moskovskoye Shosse 34, Samara

443086, Russia^1

关键词: Axial turbine;    Cooling air flow;    Developed model;    Estimation methods;    Loss estimation;    Multistage turbine;    Stagger angle;    Turbine stages;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/302/1/012038/pdf
DOI  :  10.1088/1757-899X/302/1/012038

学科分类：航空航天科学

来源: IOP

【 摘 要 】

The article describes the approach for axial turbine modeling along the mean line. It bases on the developed model of an axial turbine blade row. This model is suitable for both nozzle vanes and rotor blades simulations. Consequently, it allows the simulation of the single axial turbine stage as well as a multistage turbine. The turbine stage model can take into account the cooling air flow before and after a throat of each blade row, outlet straightener vanes existence and stagger angle controlling of nozzle vanes. The axial turbine estimation method includes the loss estimation and thermogasdynamic analysis. The single stage axial turbine was calculated with the developed model. The obtained results deviation was within 3% when comparing with the results of CFD modeling.