微沟槽表面对池沸腾传热影响的仿真研究  

Simulation Study on Effect of Micro-groove Surface on Heat Transfer of Pool Boiling

作　　者：廖文蓉[1] 刘正阳 Liao Wenrong;Liu Zhengyang(Changjiang Institute of Technology,Wuhan 430212,Hubei;Hubei Sanjiang Aerospace Xianfeng Electronic Information Co.Ltd.,Xiaogan 432000,Hubei)

机构地区：[1]长江工程职业技术学院,湖北武汉430212 [2]湖北三江航天险峰电子信息有限公司,湖北孝感432000

出　　处：《武汉工程职业技术学院学报》2025年第1期22-28,共7页Journal of Wuhan Engineering Institute

基　　金：浙江省自然科学基金委员会项目“基于自适应仿生温敏结构的高性能换热器关键技术研究”(项目编号:ZCLTGS24E0601)。

摘　　要：基于流体力学理论,利用Fluent软件建立微沟槽结构气液相变换热的数值模型,分析了9种微沟槽结构表面对池沸腾换热的影响规律。从换热表面温度、表面传热系数等方面进行对比分析,结果表明:换热表面温度随微沟槽槽深的增加、槽宽的减小呈单调递减的趋势。槽宽相同时,传热系数随沟槽深度的增加而增加。槽深相同时,槽宽对传热系数影响较小。当槽宽为0.1mm,槽深为0.2mm,肋宽为0.1mm时,微沟槽表面温度最低、传热系数最高,较光滑平面温度下降3.63%、传热系数上升80.43%。Based on the theory of fluid mechanics,the numerical model of gas-liquid transfer heat of micro-groove structure was established by using Fluent software,and the influence law of nine micro-groove structure surfaces on pool boiling heat transfer was analyzed.The heat transfer surface temperature,surface heat transfer coefficient were compared and analyzed.The results show that the surface of micro-groove structure has better boiling heat transfer effect than that of smooth surface.The surface temperature of heat transfer decreases monotonically with the increase of groove depth and the decrease of groove width.With the same groove width,the heat transfer coefficient increases with the increase of groove depth.When the depth of the groove is the same,the width of the groove has little effect on the heat transfer coefficient.When the groove width is 0.1mm,the groove depth is 0.2mm and the rib width is 0.1mm,the surface temperature of micro-groove is the lowest and the heat transfer coefficient is the highest,and the temperature decreases 3.63%and the heat transfer coefficient increases 80.43%compared with the smooth surface.

关 键 词：沸腾传热 微沟槽结构 池沸腾 FLUENT 数值模拟 

分 类 号：TK124[动力工程及工程热物理—工程热物理]