水冷式機櫃水流分佈特性之模擬研究

Numerical study of flow distribution of water cooling system in a rack

施建志(Chien-Chih Shih)

指導教授 ： 林育才

元智大學/工程學院/機械工程學系/碩士(2012年)

https://doi.org/10.6838/YZU.2012.00328

摘要

本文以數值模擬方式分析水冷式機櫃中的水流分佈特性。包含改變流動配置、流量、AR比、入口長度、入口位置、重力參數等等。了解各項參數在水冷式機櫃系統中對流量分佈均勻性之影響。
　　本研究所獲得的結果如下：(1) AR比、流動配置是影響流量分佈均勻性的主導參數。(2)相同配置情況下，U-type較Z-type均勻。(3)入口位置改為垂直進入集管可有效降低入口噴流效應造成近入口處流量下降的情況。(4)入口噴流效應會造成前兩根分支流管流量變化，但不均勻度不一定隨之上升。

關鍵字

機櫃 ； 水冷系統 ； 平行流熱交換器 ； 流量分佈 ； 數值模擬

並列摘要

This paper presents numerical results concerning the flow distribution of water cooling system in a rack. The parameters studied included the manifold configuration, flow rate, AR ratio, length of header, inlet position and gravity.
　　The results of this research be summaried as follows: (1) The main parameters of the flow distribution are AR ratio and manifold configuration. (2) the flow distribution of the U-type configuration is more uniform than that of the Z-type. (3) the inlet position change to the vertical into the header can reduce the jet flow. (4) The phenomenon of jet flow near the inlet does not necessarily increase non-uniformity of flow distribution.

並列關鍵字

analysis ； Rack ； water cooling ； flow distribution ； numerical

參考文獻

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