电力学报2017，Vol.37Issue(3)：60-65,6.
非定常尾迹对复合角度动叶气膜冷却效率的数值研究
Numerical Simulation on the Effects of Unsteady Wakes on Film Cooling at Compound angle Blade
张宏洋 1修栋波 2汪山入 3张玲4
作者信息
- 1. 国电科技环保集团股份有限公司 采购与物资管理部,北京 100039
- 2. 华能邯峰电厂,河北 邯郸 056001
- 3. 沈阳热力工程设计研究院,辽宁 沈阳 110014
- 4. 东北电力大学 能源与动力工程学院,吉林 吉林132012
- 折叠
摘要
Abstract
The influence of three different unsteady wake width on the blade film cooling efficiency is discussed in different time.Standard k-ε turblence model and SIMPLE algorithm are applied and that static blades produce wakes is simulated through altering the cylinder diameter d=2mm、d=4mm and d=6mm respectively.Results show that blade pressure side and suction side vorticity periodic impact under different width of the unsteady wakes.while make the suction surface influence more significant.Pressure side of one cycle cooling efficiency in 3/4 time is minimal.while there is a little influence on the suction surface,with the increase of angle degree,film cooling efficiency of the pressure surface is increase.The suction surface's is declining.Along with the enlargement of the wake width,Wake width have great influence on the pressure surface cooling efficiency,the cooling efficiency of Wake width (4 mm) is higher than that 2 mm and 6 mm,while there is a little influence on the suction surface.关键词
非定常尾迹/尾迹宽度/冷却效率/动叶/复合角度Key words
Unsteady wakes/Wakes width/Cooling effectiveness/Rotor blade/Compound angle分类
能源科技引用本文复制引用
张宏洋,修栋波,汪山入,张玲..非定常尾迹对复合角度动叶气膜冷却效率的数值研究[J].电力学报,2017,37(3):60-65,6.
