【摘要】 对一项新的设计技术—端壁造型技术的发展历史进行了回顾。端壁造型技术可以降低端壁区二次流损失,其提高效率的作用已经在涡轮中得到了广泛的验证,相关结论可以直接被工程采用。端壁造型技术在压气机中的研究虽晚于其在涡轮中的研究,但最新研究表明:端壁造型在改变跨音压气机激波结构,改善压气机稳定工作裕度,以及降低静叶角区分离等领域能够发挥一定作用。端壁造型技术反应了人们利用复杂型面来提高叶轮机械性能的研究趋势,值得研究者在未来开展更深入的研究。更多还原

【Abstract】 Reviewed was the evolution of a new design technology-end-wall profiling technology,which can reduce secondary flow losses in the zones around end-walls.The technology may enhance the thermal efficiency of a turbine,and has been widely verified with relevant conclusions being adopted directly in engineering projects.Although the research for applying the above technology in compressors is somehow delayed in comparison with that in turbines,the latest research findings show that the technology has played a definite role in such efforts as changing the shock wave structure of a transonic compressor,improving its stable operating margin and reducing the separation of flows in the corners of stationary blades.The technology in question reflects the research tendency of utilizing complex profiles to enhance turbomachine performance,and merits further study and investigation in the future by researchers.更多还原