基于FloEFD的液冷板相变换热数值模拟分析方法研究  

Research on Analytical Method of Numerical Simulation for Phase Change Heat Transfer of Liquid Cooled Plate Based on FloEFD

作　　者：蔡艳召[1,2] 黄胜利 刘山山 郑善伟 CAI Yan-zhao;HUANG Sheng-li;LIU Shan-shan(Xidian University,Xi'an 710126;AVIC Jonhon Optronic Technology CO.,LTD.,Luoyang 471003)

机构地区：[1]西安电子科技大学,西安710126 [2]中航光电科技股份有限公司,洛阳471003

出　　处：《航空精密制造技术》2024年第2期33-38,共6页Aviation Precision Manufacturing Technology

摘　　要：针对液冷系统中液冷板相变换热数值模拟分析存在速度慢,收敛难,准确性低的问题,提出一种结合相变换热系数理论计算及FloEFD单相对流模拟分析的方法。首先通过试验关联式计算出相变换热系数,根据工质的温升计算等效比热,然后在FloEFD软件中引入等效流体和换热系数的设置,进行模拟计算。验证表明,该方法对于液冷板相变换热的模拟分析是可行的且具有较高的效率和准确性,冷板表面温度的偏差平均在10%以内,对工程产品的正向设计具有重要的指导意义。Aiming at the problems of slow speed,difficult convergence and low accuracy in numerical simulation analysis of phase change heat transfer of liquid cooled plate in liquid cooling system,a method combining theoretical calculation of phase change heat transfer coefficient and FloEFD single-phase convection simulation analysis is proposed.The phase transformation heat coefficient is calculated by the experimental correlation,and the equivalent specific heat is calculated according to the temperature rise of working fluid.The equivalent fluid and heat transfer coefficient are introduced into the FloEFD software for simulation calculation.The simulation results show that the method is feasible and has high efficiency and accuracy.The average deviation of the surface temperature of the cold plate is less than 10%.

关 键 词：液冷板 相变换热 FloEFD 模拟分析 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]