化学工程2026，Vol.54Issue(8)：13-17,36,6.DOI:10.3969/j.issn.1005-9954.2026.08.003
磁场对肋柱凹穴式微通道热流性能的影响
Effect of magnetic field on heat flux performance of ribbed column concave cavity microchannels
摘要
Abstract
To investigate the influence of magnetic field direction and type on the flow and heat transfer performance of microchannels,numerical simulation was used to study the effects of X(along the way),Y(vertical)and Z(vertical)magnetic field directions as well as uniform,sinusoidal and square wave magnetic field types on the heat transfer performance of microchannels.The study focused on ribbed concave microchannels and used Fe3O4 nanofluid as the fluid medium.The results show that the pressure drop of the Y-direction magnetic field force is the largest,and the improvement of heat transfer performance is the most significant,with a maximum increase of up to 12.0％.The Z-direction is the second largest,and the numerical value is close to and the smallest value when there is no magnetic field effect on the X-direction.The heat dissipation performance of square wave magnetic field is the best,but the pressure loss is also the most severe.When the Reynolds number ranges from 50-500,the sinusoidal magnetic field exhibits the best comprehensive heat transfer performance,which is 5.8％-27.6％higher than other types.关键词
微通道/磁场/微结构/数值模拟Key words
microchannel/magnetic field/microstructure/numerical simulation分类
能源科技引用本文复制引用
张锁程,刘志刚,曹卫华..磁场对肋柱凹穴式微通道热流性能的影响[J].化学工程,2026,54(8):13-17,36,6.基金项目
国家自然科学基金资助项目(52075110,61961011) （52075110,61961011）
南通科技职业学院科研基金资助项目(KY202407) （KY202407）
