压力容器2016，Vol.33Issue(2)：25-29,5.DOI:10.3969/j.issn.1001-4837.2016.02.004
螺旋内肋扭曲管换热与流阻性能研究
Research on Heat Exchange and Flow Resistance Performance of Spiral Inner Fin Twisted Tube
摘要
Abstract
Based on the combination of two existing heat flux enhanced heat exchange technology,a new spiral inner fin twisted enhanced heat exchange tube was put forward.Meshing and grid independence assessment was conducted by utilizing the ANSYS ICEM CFD software and the heat exchange and flow resistance performance of three kinds of heat exchange tubes including spiral inner fin twisted tube,twis-ted tube and round tube was compared for different Re number ranging from 2300 to 50000 by utilizing the Fluent software.The relationship between the Nu number,drag coefficient f,comprehensive evaluation index PEC based on equal pump power standard and thermal potential capacity difference ( entransy dissi-pation) ΔE was achieved.The result shows that the comprehensive heat exchange performance of spiral inner fin twisted tube is superior to that of twisted tube with stronger research and development potential and broader prospect in engineering application.关键词
螺旋内肋扭曲管/强化换热/流动阻力/数值模拟Key words
spiral inner fin twisted tube/enhanced heat exchange/flow resistance/numerical simulation分类
机械制造引用本文复制引用
王定标,谷帆江,向飒,邓静,郑梦欣,董桢,张喜迎..螺旋内肋扭曲管换热与流阻性能研究[J].压力容器,2016,33(2):25-29,5.基金项目
国家自然科学基金(21576245) （21576245）
河南省科技创新杰出青年人才计划项目(124100510020) （124100510020）
河南省科技攻关计划项目(142102210494) （142102210494）
