数据中心高架地板模型和湍流模型评估  

Data center elevated floor model and turbulence model evaluation

作　　者：苗益川 朱兵[1] 吕丽 岳天亮 Miao Yichuan;Zhu Bing;Lv Li;Yue Tianliang(College of Electrical Engineering,Guizhou University,Guiyang 550025,China)

机构地区：[1]贵州大学电气工程学院,贵阳550025

出　　处：《低温与超导》2023年第1期70-77,84,共9页Cryogenics and Superconductivity

基　　金：贵州省科技支撑计划(2017YFB0902100)资助。

摘　　要：为提高数据中心气流组织温度预测的准确性,对多孔介质模型、多孔阶跃模型、体积力模型三种穿孔面模型对机柜前后侧温度分布的预测性能进行研究,通过均方根误差对三种模型预测精度进行评估,体积力模型表现最佳。此外,对10种RANS湍流模型的准确性进行了研究,Spalart-Allmaras、LRN k-ε模型的准确性优于Standrad k-ε模型。In order to improve the accuracy of air temperature prediction in data center,three perforation surface models of porous medium model,porous step model and body force model were built and studied.The root mean square error(RMSE)was used to evaluate the performance of the three models in predicting the temperature distribution of the front and rear sides of the rack,and the body force model performs best.In addition,the accuracy of 10 RANS turbulence models was also studied,and the accuracy of Spalart-Allmaras and LRN k-εmodels is better than that of Standradk-εmodels.

关 键 词：数据中心 气流模拟 高架地板模型 湍流模型 计算流体力学 

分 类 号：TK221[动力工程及工程热物理—动力机械及工程]