• 제목/요약/키워드: Yang energy

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Aerodynamic design and optimization of a multi-stage axial flow turbine using a one-dimensional method

  • Xinyang Yin;Hanqiong Wang;Jinguang Yang;Yan Liu;Yang Zhao;Jinhu Yang
    • Advances in aircraft and spacecraft science
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    • 제10권3호
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    • pp.245-256
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    • 2023

  • 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.

  • https://doi.org/10.12989/aas.2023.10.3.245 인용

Thermophysical Properties of Uranium Dioxide Fuels

  • Kang Kweon-Ho;Moon Heung-Soo;Ryu Ho-Jin;Song Kee-Chan;Yang Myung-Seung
    • 한국분말야금학회:학술대회논문집
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    • 한국분말야금학회 2004년도 International Symposium on Powder Materials and Processing
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    • pp.89-90
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    • 2004

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