不同结构肋化通道对流换热特性的试验

Study of convective heat transfer in channels with different geometrical ribs

1.
College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
2.
China Aviation Powerplant Research Institute, Zhuzhou 412002, China

摘要: 为了研究不同结构肋化通道冲击射流传热的传热特性,设计了4种不同结构的肋化通道,采用试验的方法分别对其传热特性进行了研究,分析比较了不同的肋化结构和冲击雷诺数对传热特性的影响规律.研究结果表明,在冲击驻点区域的传热特性与粗糙肋区域有所不同,具有V形结构肋化通道的传热性能较好.
- 航空、航天推进系统 /
- 冲击射流 /
- 粗糙肋 /
- 传热 /
- 试验研究
Abstract: In order to study the heat transfer characteristics of channels with different ribs, 4 kinds of channels with different ribs were designed and the heat transfer characteristics of them were experimentally studied;the influence of different ribs and the impingement Re on their heat transfer characteristics were analyzed.The results show that the heat transfer characteristic at the region of stagnation point is different from that at rib region, and the heat transfer characteristic of channel with V-shape ribs is better than others.
- aerospace propulsion system /
- impingement jet /
- rough rib /
- heat transfer /
- experimental study

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