制冷技术2025，Vol.45Issue(6)：33-39,7.DOI:10.3969/j.issn.2095-4468.2025.06.105
海上晃荡工况流体分配歧管性能仿真分析
Simulation Analysis of Fluid Distribution Manifold Performanc at Offshore Sloshing Conditions
雷睿 1张立裕 1侯嘉伟 1何嘉欣 1傅强 2孙玉海 2符亚玮 3胡海涛1
作者信息
- 1. 上海交通大学机械与动力工程学院,上海 200240
- 2. 中集来福士海洋工程有限公司,山东 烟台 264000
- 3. 西安道特石化工程有限公司,陕西 西安 710077
- 折叠
摘要
Abstract
To address the uneven spray distribution in a two-stage distribution manifold under complex sloshing conditions,a numerical simulation study is conducted to investigate the influence mechanism of geometric parameters and sloshing conditions on flow distribution uniformity.The primary area ratio(AR1,the cross-sectional area ratio of the main pipe to the branch pipes)and the secondary area ratio(AR2,the cross-sectional area ratio of the branch pipes to the spray holes)is introduced as key design variables in this paper.The distribution performance was quantitatively evaluated using the uniformity index.The results indicate that the flow inside the manifold is dominated by the pressure gradient,and distribution uniformity is jointly constrained by AR1 and AR2.Through synergistic coordination of the two-level area ratios,the uniformity index was improved from 0.916 2 to 0.988 3.Under sloshing conditions such as sway,surge,and heave,the body forces do not dominate the flow;therefore,their impact on uniformity is limited,and in some cases,the sloshing may even mitigate local maldistribution caused by vortex flows.The transient inertial forces induced by periodic rolling exhibit a time-averaged canceling effect,leading to a negligible influence on the time-averaged uniformity,although thicker branch pipes were observed to amplify flow instability.关键词
精馏塔分配器/二级分配歧管/面积比/流动均匀性/晃荡工况/数值模拟Key words
Distillation column distributor/Secondary distribution manifold/Area ratio/Flow uniformity/Sloshing conditions/Numerical simulation分类
通用工业技术引用本文复制引用
雷睿,张立裕,侯嘉伟,何嘉欣,傅强,孙玉海,符亚玮,胡海涛..海上晃荡工况流体分配歧管性能仿真分析[J].制冷技术,2025,45(6):33-39,7.
