收稿日期: 2013-10-30
修回日期: 2014-01-03
基金资助
国家自然科学基金(51306186)资助
Performance of heat-pipe cooling of turbine blade
Received date: 2013-10-30
Revised date: 2014-01-03
占丽媛 , 李玉华 , 姜玉雁 , 唐大伟 . 简报燃气轮机涡轮导叶热管冷却效果对比研究[J]. 中国科学院大学学报, 2014 , 31(6) : 846 -850 . DOI: 10.7523/j.issn.2095-6134.2014.06.018
Two straight turbine blades with different internal structures and different cooling schemes have been studied using conjugate heat transfer method. We compare the performances of heat-pipe cooling and impingement cooling through analyzing the temperature on external surface,heat transfer coefficient of middle-span, and overall cooling effectiveness (OCE). The results show that the heat-pipe cooling leads to more uniform temperature distribution along the tailing edge of the blade and wider low-temperature region around the transition point. It has been found that the effectiveness of the heat-pipe cooling reaches to or even exceeds that of the impingement cooling under the same primary flow conditions.
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