基于热驱动理论的新型冷却技术换热效果实验和比较

杨敏; 常海萍; 吴培光

基于热驱动理论的新型冷却技术换热效果实验和比较

1.
北京航空航天大学航空科学与工程学院, 北京 100083
2.
南京航空航天大学能源与动力学院, 南京 210016
3.
第二炮兵司令部工程部, 北京

基金项目: 国家自然科学基金资助项目(50276027);国防基础科研资助项目(J1400D001)

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出版历程
- 收稿日期: 2005-12-12
- 修回日期: 2006-06-21
- 刊出日期: 2006-12-28

Experimental study of heat transfer effect of a new cooling technique based on thermally driven theory

1.
College of Aeronautic Science & Technology, Beijing University of Aeronautics and Astronautics, Beijing 100083, China
2.
College of Energy & Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
3.
Department of Engineering, Headquarters of the Second Artillery, Beijing

摘要

摘要: 新型超级冷却技术(NSCT)是一种基于热驱动理论的新型冷却技术,针对该技术的平均换热特性进行了实验研究,结果表明:随着浮力数Bu、旋转雷诺数Re_ω、进口冷气雷诺数Re_z的不断增大,旋转条件下新型超级冷却技术的平均换热效果逐渐增强。将新型冷却技术与常规两种涡轮叶片冷却方式-肋强化冷却和冲击冷却的平均换热效果进行比较,得出结论:在实验范围内,新型超级冷却技术比另外两种冷却方式具有更优的换热效果。
- 航空、航天推进系统 /
- 热驱动理论 /
- 换热 /
- 涡轮叶片冷却 /
- 旋转
Abstract: A New Super Cooling Technique based on thermally driven theory was studied further at the background of turbine blade’s cooling by Experiments.Experimental results show that the heat transfer effect of this new cooling technique is enhanced with increasing in buoyancy,rotational Reynolds number and cooling air Reynolds number,its cooling ability is better than those of the other two kinds of current blade cooling techniques.
- aerospace propulsion system /
- thermally driven theory /
- heat transfer /
- turbine blade cooling /
- rotation

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参考文献(8)

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