流体机械2026，Vol.54Issue(1)：49-57,73,10.DOI:10.3969/j.issn.1005-0329.2026.01.007
低熔点金属在管内流动换热特性研究
Study on flow and heat transfer characteristics of low melting point metals in tubes
摘要
Abstract
To investigate the flow and heat transfer characteristics of liquid indium-tin-bismuth alloy within tubes,a systematic analysis was conducted on the effects of different tube types(including circular,elliptical,flattened,square,and triangular tubes)under the same equivalent diameter condition on temperature,velocity,and pressure distributions,as well as the influence of key thermal parameters such as Reynolds number and heat flux density on the heat transfer dynamics of the indium-tin-bismuth alloy.The results indicate that the square tube exhibits superior overall heat transfer performance compared to other tube types.When the inlet Reynolds number increased from 5 419 to 13 548,the heat transfer coefficient increased from 4 695.962 W/(m2·K)to 9 357.478 W/(m2·K).When the wall heat flux density increased from 110 W/cm2 to 130 W/cm2,the heat transfer coefficient increased from 4 695.962 W/(m2·K)to 5 541.235 W/(m2·K).Both increasing the inlet Reynolds number and increasing the tube wall heat flux density significantly enhance the heat transfer efficiency between the liquid metal and the tube wall.This study provides a reference for the optimal design and application of thermal management systems utilizing liquid metals.关键词
液态金属/铟锡铋合金/流动换热/管型Key words
liquid metal/indium-tin-bismuth alloy/flow and heat transfer/tube type分类
机械制造引用本文复制引用
李明悦,王子龙,张华,刘妮,李康,袁晓军,陈建红..低熔点金属在管内流动换热特性研究[J].流体机械,2026,54(1):49-57,73,10.基金项目
国家自然科学基金项目(51606126,51876130) （51606126,51876130）
上海市"科技创新行动计划"技术标准项目(24DZ2201800) （24DZ2201800）
