EFFECT OF SPHERICAL BLOCKAGE CONFIGURATIONS ON FILM COOLING
作者: Jin Wang Ke Tian Kai Zhang Jakov Baleta Bengt Sunden
刊名: Thermal Science, 2018, Vol.22 (5), pp.1933-1942
来源数据库: Society for Thermal Engineers of Serbia
DOI: https://doi.org/10.2298/TSCI171229257W
关键词: Film coolingBlockageMist injectionSphereGas turbine
原始语种摘要: With increasing inlet temperature of gas turbines, turbine blades need to be effectively protected by using cooling technologies. However, the deposition from the fuel impurities and dust particles in the air is often found inside film holes, which results in partial hole blockage. In this paper, the deposition geometry is simplified as a rectangular channel, and the effect of three blockage ratios is investigated by using the computational fluid dynamics. In addition, water droplets are also released from the coolant inlet to provide a comparison of the results with and without mist injection. It is found that the lateral film cooling effectiveness is reduced with increasing blockage ratio. For all the cases with the blowing ratio 0.6, 1% mist injection provides an improvement of the...
全文获取路径: PDF下载  塞尔维亚热力工程师协会  (合作)
分享到:

×
关键词翻译
关键词翻译
  • injection 贯入
  • results 成果
  • blockage 闭塞
  • increasing 增加的
  • turbine 涡轮机
  • ratio 
  • effectively 有效地
  • improvement 改良
  • cooling 冷却
  • rectangular 矩形的