Influence of liquid column impact wall on liquid film thickness fluctuation outside the horizontal tube

被引：0
|
作者：
Chen, Lele [1 ]
Qiu, Qinggang [1 ]
Zhang, Xiaocui [1 ]
Zhang, Kun [2 ]
机构：
[1] Dalian Univ Technol, Sch Energy & Power Engn, Key Lab Ocean Energy Utilizat & Energy Conservat, Minist Educ, Dalian 116024, Peoples R China
[2] Dalian Ocean Univ, Sch Ocean & Civil Engn, Dalian 116023, Peoples R China
来源：
INTERNATIONAL JOURNAL OF LOW-CARBON TECHNOLOGIES | 2023年 / 18卷
基金：
中国国家自然科学基金;
关键词：
liquid film fluctuation; liquid column impact the wall; liquid film thickness; horizontal tube; falling films; FALLING-FILM; HEAT-TRANSFER; MICROSCOPIC MECHANISMS; FLOW BEHAVIOR; JET MODES; SIMULATION; EVAPORATION; DROPLETS;
D O I：
10.1093/ijlct/ctac116
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
A 3D falling film flow model outside the horizontal tube is established to study the influence of the liquid column impact the wall on the liquid film thickness distribution. It is found that the liquid film thickness fluctuates significantly at 0 degrees-60 degrees in single liquid column, and the minimum thickness appears. In the jet flow, there is a critical value of 70 degrees due to the liquid film fluctuation. The liquid film thickness change before 70 degrees was negatively correlated with Reynolds number and positively correlated after 70 degrees. And the fluctuation amplitude negatively correlates with the Reynolds number.
引用
收藏
页码：513 / 520
页数：8
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