| 新型高效低阻外翅管的研究 |
| |
| 引用本文： | 龙天渝 何川. 新型高效低阻外翅管的研究[J]. 土木与环境工程学报, 1999, 21(3): 61-64 |
| |
| 作者姓名： | 龙天渝 何川 |
| |
| 作者单位： | 重庆建筑大学城市建设学院(龙天渝)，重庆大学工程热物理研究所(何川) |
| |
| 基金项目： | 重庆市优秀中青年科技专家基金 |
| |
| 摘 要： | 通过对外翅管绕流阻力及绕流谱的分析，提出利用翅片的外伸作用对基管进行近体扰流增效减阻的方法。单管的实验研究证实，选用合理的绊条扰流结构，可使环翅管的绕流阻力降低４０％，换热增强１０％。
|
| 关 键 词： | 流体力学；换热器；减阻 |
The Study for Reducing Drag of Fluid FlowPast an External Fins Pipe |
| |
| LONG Tian_yu,HE Chuan. The Study for Reducing Drag of Fluid FlowPast an External Fins Pipe[J]. Journal of Civil and Environmental Engineering, 1999, 21(3): 61-64 |
| |
| Authors: | LONG Tian_yu HE Chuan |
| |
| Affiliation: | LONG Tian_yu1,HE Chuan2 |
| |
| Abstract: | This paper proposes a new way to reduce the drag of the fluid flow past a external fins pipe. If a little rectangular leaf is suitably installed upstream of the base pipe of the external fins pipe, not only the drag will be reduced, but also the heat transfer will be enhanced in a suitable range of Reynolds number. An experimental investigation showed that compared with a general external fins pipe, the new way can reduce the drag more than 40% and enhance the heat transfer about 10% meanwhile. |
| |
| Keywords: | fluid mechanics heat exchanger drag reduction |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《土木与环境工程学报》浏览原始摘要信息 |
|
点击此处可从《土木与环境工程学报》下载免费的PDF全文 |
