Gas-Liquid Flow Patterns in a Rectangular Milli-Structured Channel with Static Mixing Elements,Chemical Engineering & Technology

当前位置： X-MOL 学术 › Chem. Eng. Technol. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Gas-Liquid Flow Patterns in a Rectangular Milli-Structured Channel with Static Mixing Elements
Chemical Engineering & Technology ( IF 1.8 ) Pub Date : 2022-01-13 , DOI: 10.1002/ceat.202100355
Jan-Niklas Denker _{1,

2} , Frank Herbstritt ₂ , Joachim Heck ₂ , Marcus Grünewald ₁ , Philip Biessey ₁

Affiliation

The gas-liquid flow behavior through a milli-scaled channel provided with a staggered herringbone-like static mixer was investigated using high-speed recordings. For three different substance systems consisting of water, 5 wt % acetic acid in aqueous solution, and propylene glycol as liquid phase and nitrogen as gas phase, flow patterns and their transitions were determined by analyzing image sequences of the flow and summarized in flow pattern maps. Surge flow, slug flow, and bubbly flow were observed at different flow rates. The flow distribution and transitions between flow patterns mainly depend on the viscosity and surface tension of the liquid phase. By just reducing the surface tension, slug flow is not observed, and thus an early transition into a bubbly flow regime takes place. An increase in viscosity counteracts this effect.

中文翻译：

具有静态混合元件的矩形毫结构通道中的气液流动模式

使用高速记录研究了通过配备有交错人字形静态混合器的毫米级通道的气液流动行为。对于由水、水溶液中 5 wt% 乙酸和丙二醇作为液相和氮气作为气相组成的三种不同物质系统，通过分析流动的图像序列确定流动模式及其转变，并总结在流动模式图中. 在不同的流速下观察到浪涌流、团状流和气泡流。流动模式之间的流动分布和过渡主要取决于液相的粘度和表面张力。通过仅仅降低表面张力，不会观察到团状流，因此会发生早期过渡到气泡流状态。粘度的增加抵消了这种影响。

更新日期：2022-01-13

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11