CFD-based shape optimization of steam turbine blade cascade in transonic two phase flows

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• 作者：S.M.A. Noori Rahim Abadi^a ; A. Ahmadpour^b ; ^{ali.ahmadpour@aut.ac.ir} ; S.M.N.R. Abadi^b ; J.P. Meyer^a
• 关键词：Two-fluid model ; Wet steam ; Non-equilibrium condensation ; Steam turbine ; Shape optimization
• 刊名：Applied Thermal Engineering
• 出版年：2017
• 出版时间：5 February 2017
• 年：2017
• 卷：112
• 期：Complete
• 页码：1575-1589
• 全文大小：4094 K
• 卷排序：112

文摘

CFD-based shape optimization of a nozzle and a turbine blade regarding nucleating steam flow is performed. Nucleation rate and droplet radius are the best suited objective functions for the optimization process. Maximum 34% reduction in entropy generation rate is reported for turbine cascade. A maximum 10% reduction in Baumann factor and a maximum 2.1% increase in efficiency is achieved for a turbine cascade.