{"title":"Influence of liquid column impact wall on liquid film thickness fluctuation outside the horizontal tube","authors":"Lele Chen, Q. Qiu, Xiaocui Zhang, Kun Zhang","doi":"10.1093/ijlct/ctac116","DOIUrl":null,"url":null,"abstract":"\n A 3-D 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 ° - 60 ° in single liquid column, and the minimum thickness appears. In the jet flow, there is a critical value of 70° due to the liquid film fluctuation. The liquid film thickness change before 70° was negatively correlated with Reynolds number, and positively correlated after 70°. And the fluctuation amplitude negatively correlates with the Reynolds number.","PeriodicalId":14118,"journal":{"name":"International Journal of Low-carbon Technologies","volume":null,"pages":null},"PeriodicalIF":2.4000,"publicationDate":"2023-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Low-carbon Technologies","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1093/ijlct/ctac116","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENERGY & FUELS","Score":null,"Total":0}
引用次数: 0
Abstract
A 3-D 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 ° - 60 ° in single liquid column, and the minimum thickness appears. In the jet flow, there is a critical value of 70° due to the liquid film fluctuation. The liquid film thickness change before 70° was negatively correlated with Reynolds number, and positively correlated after 70°. And the fluctuation amplitude negatively correlates with the Reynolds number.
期刊介绍：
The International Journal of Low-Carbon Technologies is a quarterly publication concerned with the challenge of climate change and its effects on the built environment and sustainability. The Journal publishes original, quality research papers on issues of climate change, sustainable development and the built environment related to architecture, building services engineering, civil engineering, building engineering, urban design and other disciplines. It features in-depth articles, technical notes, review papers, book reviews and special issues devoted to international conferences. The journal encourages submissions related to interdisciplinary research in the built environment. The journal is available in paper and electronic formats. All articles are peer-reviewed by leading experts in the field.
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