摘要
气膜冷却作为燃气轮机透平叶片通流部分外部冷却的一种主流技术,经过多年来的研究改进,已在工程应用实践中得到了很好的发展。总结近年来燃气透平叶片气膜冷却的相关研究进展,重点介绍了一些新型气膜冷却结构的研究情况,基于当前研究热点和发展趋势,结合作者在这方面的研究经历,指出了气膜冷却研究及其应用的发展方向。鉴于新型气膜孔、组合气膜孔以及涡发生器与气膜孔的组合在气膜冷却性能方面具有较大优势,未来将深入研究其在实际透平中的应用问题。
As a major cooling method for the external surface of turbine flow path, film cooling has been well developed in the practice of engineering application with years of investigation and improvement. A summary of the previous studies has been made with a focus on the latest investigation of new shaped film holes and film cooling on turbine blade tip and trailing edge. And some future developments are pointed out based on the research hotspots and author＇ s experiences in film cooling. The application of new shaped holes, combination of shaped holes, and combination of vortex generator with film holes in gas turbine would be conducted due to their advantages in cooling performance.
出处
《热力透平》
2014年第1期1-9,共9页
Thermal Turbine
基金
国家自然科学基金重点项目资助(51336007)
