中国电机工程学报2011，Vol.31Issue(2)：55-61,7.
平行平板通道内置螺旋线圈流动传热特性
Flow and Heat Transfer Analysis of Flat Plate Channel With Spiral Coil Inserts
摘要
Abstract
The flow and heat transfer characteristics of parallel flat plate channel with spiral coil inserts were studied experimentally and numerically. It is found that the application of spiral coil inserts can effectively enhance heat transfer compared with the flat plate channel without spiral coil inserts.With the same Reynolds number, the heat transfer is enhanced 29％～141％ while the flow restriction is increased 26％～175％.The numerical results indicate that multi-longitudinal vortices are induced by the spiral coil inserts, which enhanced the velocity component that vertical to the channel wall and caused a remarkable change in temperature field. Consequently, the coordination between flow and temperature fields is improved and the heat transfer is enhanced. With Reynolds number between 700 and 7500, the comparison between different overall performance evaluation parameter shows that the heat transfer enhancement is larger than the flow resistance increase at lower Reynolds number, but on the contrary at higher Reynolds number.关键词
强化传热/平板通道/螺旋线圈/纵向涡/场协同分类
能源科技引用本文复制引用
唐玉峰,田茂诚,张冠敏,姜波..平行平板通道内置螺旋线圈流动传热特性[J].中国电机工程学报,2011,31(2):55-61,7.基金项目
国家重点基础研究发展计划项目(973 项目)(2007CB206903) （973 项目）
山东省科技攻关项目 （）
山东大学自主创新基金. （）
