中山大学学报自然科学版 ›› 2018, Vol. 57 ›› Issue (2): 108-115.

• 论文 • 上一篇    下一篇

小型计算中心制冷系统的仿真模拟

白航,徐诺,姚清河   

  1. 中山大学应用力学与工程系,广东 广州 510275
  • 收稿日期:2017-05-21 出版日期:2018-03-25 发布日期:2018-03-25

Numerical study of the cooling system in a small computer center

BAI Hang, XU Nuo, YAO Qinghe   

  1. Department of Applied Mechanics and Engineering, Sun Yat-Sen University, Guangzhou 510275, China
  • Received:2017-05-21 Online:2018-03-25 Published:2018-03-25

摘要:

制冷系统是计算机中心优化管理的重要内容,制冷效率的高低对内部设备的正常稳定运行产生直接的影响。采用PT100温度热敏电阻测量了制冷系统工作时某小型计算中心内部的温度变化,并利用计算流体动力学(CFD)方法对其内部的流场和温度场进行了数值模拟。仿真结果与实测值的最大相对误差为0.22%,吻合情况良好。计算结果显示,计算中心内部的涡会减小其所在区域的降温速率,降低率约25%;与邻近区域相比,涡存在区域的温度高。

关键词: 制冷, 优化, 气流组织,

Abstract:

The design of the refrigeration system is an important part of the optimization management of the computer center, which also has a direct impact on the stable operation of the internal equipment. In this paper indoor temperature was measured with the traditional measurement method, and the fluid field and temperature field were simulated by computational dynamics fluid (CFD) method. The numerical results are in agreement with the experimental results to within the relative error of 0.22%, which ensures the reliability and lays a foundation for the further analysis of the air distribution. The results indicate that the vortex has important influence on the temperature distribution; and cooling rate in the vortex region is lower about 25% compared with the adjacent.

Key words: cooling, optimization, air distribution, vortex

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