原子能科学技术2017，Vol.51Issue(4)：627-635,9.DOI:10.7538/yzk.2017.51.04.0627
涡流发生器对超临界CO2传热和流阻性能影响的数值模拟研究
Numerical Simulation on Effect of Vortex Generator on Heat Transfer and Flow of Supercritical CO2
摘要
Abstract
The heat transfer characteristics of supercritical fluid in a rectangular channel with small scale vortex generator of different parameters were numerically investigated.The effects of span-wise vortices produced by vortex generator on heat transfer of supercritical fluid were analyzed.The results show that the angle-cut elliptical column vortex generator can suppress the heat transfer deterioration of supercritical fluid,while it has little effect on the no-deteriorated heat transfer of supercritical fluid.The local wall shear stress and heat transfer coefficient at the downstream of the vortex generator exhibit similar tendencies when heat transfer deterioration occurs.However,heat transfer deterioration phenomenon would intensify the wall shear stress.It could also be observed that the configurations of vortex generator could greatly influence the characteristics of heat transfer of supercritical fluid.关键词
超临界流体/涡流发生器/异常传热/数值模拟Key words
supercritical fluid/vortex generator/abnormal heat transfer/numerical simulation分类
能源科技引用本文复制引用
赵振兴,林原胜,王苇,张克龙,刘洲洋,肖颀..涡流发生器对超临界CO2传热和流阻性能影响的数值模拟研究[J].原子能科学技术,2017,51(4):627-635,9.基金项目
湖北省自然科学基金知识创新专项资助项目(2016CFA019) （2016CFA019）
