文献类型：期刊文献

英文题名：Heat transfer and characteristics of pressure drop in wedge passage with waist-shaped pin-fin arrays

作者：Ling, Chang-Ming[1]; Zhao, Guang-Chao[1]; Huang, Xiao-Xin[1]; Xu, Qing[1]; Li, Jun[1]; Zhao, Dong-Mei[2]; Gao, Xue-Nong[3]

机构：[1] College of Engineering, Guangdong Ocean University, Zhanjiang 524025, China; [2] China Aviation Power Plant Research Institute, Zhuzhou 412002, China; [3] Key Lab. of Heat Transfer, South China University of Technology, Guangzhou 510640, China

年份：2008

卷号：29

期号：5

起止页码：815

外文期刊名：Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics

收录：EI(收录号：20082311303975)、Scopus(收录号：2-s2.0-44449154242)

语种：英文

外文关键词：Flow of fluids - Heat transfer - Nusselt number - Pressure drop - Reynolds number

外文摘要：The heat transfer and characteristics of the fluid flow in the duct with waist-shaped pin-fin arrays for the trailing edge of the turbine blade were experimentally investigated. The effect of the Reynolds number, the corset ratio κ of the pin-fin and the different combinations of row of the waist-shaped pin-fins were explored. The results show that the heat transfer increases and the pressure drop decreases with the increase of Reynolds number and the heat transfer is lower than that of round pin-fin array. Second, As the increase of the corset ratio κ, the heat transfer enhances and then goes to evenness while the pressure drop fluctuates; third, In the three waist-shaped rows, effect of the second Row to the heat transfer is largest and the effect of the first row is the lowest. While the first or the third row is waist-shaped pin-fins, the heat transfer are weakened but the pressure drop dramatically increase.