Prediction of film thickness, bubble velocity, and pressure drop for capillary slug flow using a CFD-generated database

Langewisch D. R.; Buongiorno J.

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Prediction of film thickness, bubble velocity, and pressure drop for capillary slug flow using a CFD-generated database

机译：使用CFD生成的数据库预测毛细团流的膜厚，气泡速度和压降

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摘要

An extensive computational study of slug flow in circular capillaries using the open source computational fluid dynamics (CFD) code, Gerris (Popinet, 2003, 2009), has been completed. This study consists of 125 different combinations of Ca is an element of [0.005, 2] and Re is an element of [0, 900]. The data from these simulations have been compiled into a numerical database and have been used to derive new correlations for the film thickness, bubble velocity, and pressure drop. Unlike preexisting correlations, our proposed film thickness correlation does not require prior knowledge of the bubble's velocity, thus making it more convenient for modeling applications for which this information is unavailable. The correlation is also applicable over a broader range of capillary and Reynolds numbers than current correlations. (C) 2015 Elsevier Inc. All rights reserved.

机译：使用开源计算流体动力学（CFD）代码Gerris（Popinet，2003，2009），已经完成了对圆形毛细管中团状流的广泛计算研究。该研究由125种不同的组合组成，其中Ca是[0.005，2]的元素，Re是[0，900]的元素。这些模拟的数据已被汇编到一个数值数据库中，并已用于得出膜厚度，气泡速度和压降的新相关性。与预先存在的相关性不同，我们提出的膜厚相关性不需要气泡速度的先验知识，因此可以为没有此信息的应用程序建模提供更多便利。与当前的相关性相比，该相关性还适用于更大范围的毛细管数和雷诺数。（C）2015 Elsevier Inc.保留所有权利。

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来源
《International Journal of Heat and Fluid Flow》 |2015年第8期|250-257|共8页
作者
Langewisch D. R.; Buongiorno J.;
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作者单位

MIT, Dept Nucl Sci & Engn, Cambridge, MA 02139 USA;

MIT, Dept Nucl Sci & Engn, Cambridge, MA 02139 USA;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
Slug flow; Bretherton; CFD;

机译：塞流;Bretherton;CFD;

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Prediction of film thickness, bubble velocity, and pressure drop for capillary slug flow using a CFD-generated database

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