文献类型：期刊文献

中文题名：枝形流体分布器结构对流体均布性能的影响

英文题名：Impact of Arborescent Distributor Structure on Fluid Distribution Uniformity in the Reactors

作者：侯璟鑫[1];钱刚[1];周兴贵[1]

机构：[1]华东理工大学化学反应工程联合国家重点实验室,上海200237

年份：2013

卷号：29

期号：4

起止页码：332

中文期刊名：化学反应工程与工艺

外文期刊名：Chemical Reaction Engineering and Technology

收录：CSTPCD;;Scopus;北大核心:【北大核心2011】；CSCD:【CSCD2013_2014】；

基金：国家重点基础研究发展计划(973计划)(2012CB720501);高等学校创新引智计划(B08021)

语种：中文

中文关键词：流体均布;分布器;枝形结构;构造理论;计算流体力学

外文关键词：fluid distribution; distributor; arborescent structure; constructal approach; computaional fluiddynamics

摘要：采用计算流体力学模拟的方法对枝形分布器的气体或液体分布效果进行了研究。分别对两种结构的枝形分布器进行了考察,其一是通道未作处理的原始枝形分布器,另一种是在原始结构基础上将流动转向处以及出口处做平滑处理获得新型枝形分布器。结果表明,气体分布性能均好于液体均布性能,压降主要来自于进、出口处,尤其是平滑枝形分布器出口处的渐缩结构形成了较高的阻力损失。总体上,平滑枝形分布器其流体均布性能更好,但压降略有升高。
Computational fluid dynamics （CFD） method was employed to investigate the gas and liquid distribution performance of the arborescent distributors. Two different structures were studied. One was the original arborescent structure without any modifications, the other was a novel arborescent structure with smoothed junctions. It was found that the uniformity of gas distribution was better than that of liquid distribution for both distributors. The flow resistance was mainly caused by both inlet and outlet structures of the distributor. A larger pressure drop can be observed in the vicinity of the outlets of the smoothed distributor due to its reduced channel diameter. Overall, the smoothed distributor has better uniformity than the original one for both gas and liquid distribution. However, the pressure drop of the former is slightly higher than the latter.