EFFECT OF INTERNAL CROSSFLOW ON DOUBLE JET FILM COOLING HOLES OF HELIUM TURBINE BLADES

被引：0
|
作者：
Sun, Xiao-kai [1 ]
Peng, Wei [1 ]
Wang, Jie [1 ]
Jiang, Pei-xue [2 ]
机构：
[1] Tsinghua Univ, Inst Nucl & New Energy Technol, Collaborat Innovat Ctr Adv Nucl Energy Technol, Key Lab Adv Reactor Engn & Safety,Minist Educ, Beijing 100084, Peoples R China
[2] Tsinghua Univ, Key Lab Thermal Sci & Power Engn, Minist Educ, Dept Thermal Engn, Beijing 100084, Peoples R China
来源：
PROCEEDINGS OF THE 25TH INTERNATIONAL CONFERENCE ON NUCLEAR ENGINEERING, 2017, VOL 6 | 2017年
基金：
中国国家自然科学基金;
关键词：
D O I：
暂无
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
In the present study, effect of internal crossflow on double jet film cooling holes were investigated. In our previous study, four types of film cooling holes was investigated and the double jet holes showed better cooling efficiency. However, in practice, the coolant in high temperature turbine blade has a very high flow rate and turbulence, so it is necessary to take the effect of coolant supply condition at the hole entrance into consideration. So the influence of coolant supply condition was investigated, the plenum condition and the crossflow condition were studied to show the influence of the coolant supply condition. And the cylindrical hole was also investigated as comparison. The results showed that there is a profound effect of how the coolant is supplied to the hole on the film cooling performance in the near hole region. Therefore, crossflow at the hole entry side has be taken into account when modeling film-cooling.
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页数：4
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