Numerical Study of Turbulent Flow and Convective Heat Transfer Characteristics in Helical Rectangular Ducts
文献类型：期刊论文
| 作者 | Zhong, FQ (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China.; Xing YF(邢云绯) ; Zhang XY(张新宇); Zhong FQ(仲峰泉)
|
| 刊名 | JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME
 |
| 出版日期 | 2014-12 |
| 卷号 | 136期号:12页码:121701 |
| 关键词 | Helical Rectangular Duct Heat Transfer Turbulent Flow Curvature Torsion |
| ISSN号 | 0022-1481 |
| 产权排序 | [Xing, Yunfei; Zhong, Fengquan; Zhang, Xinyu] Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China |
| 英文摘要 | Three-dimensional turbulent forced convective heat transfer and its flow characteristics in helical rectangular ducts are simulated using SST k-omega turbulence model. The velocity field and temperature field at different axial locations along the axial direction are analyzed for different inlet Reynolds numbers, different curvatures, and torsions. The causes of heat transfer differences between the inner and outer wall of the helical rectangular ducts are discussed as well as the differences between helical and straight duct. A secondary flow is generated due to the centrifugal effect between the inner and outer walls. For the present study, the flow and thermal field become periodic after the first turn. It is found that Reynolds number can enhance the overall heat transfer. Instead, torsion and curvature change the overall heat transfer slightly. But the aspect ratio of the rectangular cross section can significantly affect heat transfer coefficient. |
| 学科主题 | Thermodynamics ; Engineering |
| 分类号 | 二类/Q1 |
| URL标识 | 查看原文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000345262600004 |
| 资助机构 | The authors gratefully acknowledge the financial support of the National Natural Science Foundation of China (Nos. 11202218 and 11172309). |
| 公开日期 | 2015-01-04 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/49438]  |
| 专题 | 力学研究所_高温气体动力学国家重点实验室 |
| 通讯作者 | Zhong, FQ (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Zhong, FQ ,Xing YF,Zhang XY,et al. Numerical Study of Turbulent Flow and Convective Heat Transfer Characteristics in Helical Rectangular Ducts[J]. JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME,2014,136(12):121701. |
| APA | Zhong, FQ ,Xing YF,Zhang XY,&Zhong FQ.(2014).Numerical Study of Turbulent Flow and Convective Heat Transfer Characteristics in Helical Rectangular Ducts.JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME,136(12),121701. |
| MLA | Zhong, FQ ,et al."Numerical Study of Turbulent Flow and Convective Heat Transfer Characteristics in Helical Rectangular Ducts".JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME 136.12(2014):121701. |
入库方式： OAI收割
来源：力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。