基于场协同理论的强化管换热效果分析  

Analysis of Strengthening Heat Transfer Effects Based on Field Synergy Theory

作　　者：张艾萍[1] 夏荣涛 徐志明[1] 丁权[1] 杨钊[1] 王冲[1] 

机构地区：[1]东北电力大学能源与动力工程学院

出　　处：《化工机械》2016年第1期97-101,共5页Chemical Engineering & Machinery

基　　金：国家自然科学基金资助项目(51476025)

摘　　要：在湍流工况下,分别对圆管、横纹管、波节管和波纹管的换热效果进行数值模拟。应用场协同理论对数值模拟的结果进行分析,结果表明:各种换热管的努塞尔数和综合性能系数均随雷诺数的增加而增加,而场协同数则随雷诺数的增加而减小;当雷诺数较大时,各换热管的场协同数逐渐趋于定值;相同雷诺数下,横纹管的各项指标最高,而圆管最低。因此在相同工况下,应优先选择横纹管作为换热器中的强化换热管。In the turbulent flow conditions,the heat transfer effect of the circular tube,transversally-corrugated tube and the corrugated pipe was simulated respectively. Applying the field synergy theory to analyze these simulation results shows that Nusselt number and overall coefficient of performance of various tubes can be increased with the increase of Reynolds number while the field synergy number decreases with increasing of Reynolds number; when the Reynolds number becomes larger,the field synergy number of various tubes tends to a definite value; regarding the same Reynolds number,the indicators of transversally-corrugated tube are the highest and those of the circular tube are the lowest; as for the same conditions,the preference should be given to the transversally-corrugated tube.

关 键 词：换热器 换热管 对流换热 场协同原理 场协同数 综合性能系数 

分 类 号：TQ051.5[化学工程]