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Advances in Aircraft and Spacecraft Science Volume 10, Number 3, May 2023 , pages 245-256 DOI: https://doi.org/10.12989/aas.2023.10.3.245 |
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Aerodynamic design and optimization of a multi-stage axial flow turbine using a one-dimensional method |
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Xinyang Yin, Hanqiong Wang, Jinguang Yang, Yan Liu,
Yang Zhao and Jinhu Yang
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| Abstract | ||
| In order to improve aerodynamic performance of multi-stage axial flow turbines used in aircraft engines, a one-dimensional aerodynamic design and optimization framework is constructed. In the method, flow path is generated by solving mass continuation and energy conservation with loss computed by the Craig & Cox model; Also real gas properties has been taken into consideration. To obtain an optimal result, a multi-objective genetic algorithm is used to optimize the efficiencies and determine values of various design variables; Final design can be selected from obtained Pareto optimal solution sets. A three-stage axial turbine is used to verify the effectiveness of the developed optimization framework, and designs are checked by three-dimensional CFD simulation. Results show that the aerodynamic performance of the optimized turbine has been significantly improved at design point, with the total-to-total efficiency increased by 1.17% and the total-to-static efficiency increased by 1.48%. As for the off-design performance, the optimized one is improved at all working points except those at small mass flow. | ||
| Key Words | ||
| aerodynamic design and optimization; axial flow turbine; multi-stage; one-dimensional design | ||
| Address | ||
| Xinyang Yin, Hanqiong Wang, Jinguang Yang, Yan Liu: School of Energy and Power, Dalian University of Technology, Dalian, 116000, China Yang Zhao: Shenyang Blower Works Group Corporation, Shenyang, 110000, China Jinhu Yang: Qingdao Institute of Aeronautical Technology, Qingdao, 266000, China | ||
