The study calculates numerical simulation of ribbed straight passage with RANS method,and analyzes the effects of various geometric parameters(rib height,width to height ratio,and rib staggered distance)on the flow and heat transfer characteristics of ribbed straight passage.The results show that when the rib angle is 60°,the enhanced heat transfer coefficient increases with the increase of rib height.With the increase of aspect ratio,the comprehensive thermal efficiency increases first and then decreases.The comprehensive heat transfer performance is the best when the rib staggered distance is 15 mm.In general,the heat transfer effect of the three models is not different.
关键词
带肋直通道/数值模拟方法/流动与传热性能
Key words
Ribbed through passage/Numerical simulation method/Flow and heat transfer performance
维普
万方数据