Academic Journal
Micro Droplets of non-Newtonian Solutions in Silicone Oil Flow through a Hydrophobic Micro Cross-Junction
| العنوان: | Micro Droplets of non-Newtonian Solutions in Silicone Oil Flow through a Hydrophobic Micro Cross-Junction |
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| المؤلفون: | Rostami, B, Morini, GL |
| المساهمون: | Rostami, B, Morini, GL |
| سنة النشر: | 2017 |
| المجموعة: | IRIS Università degli Studi di Bologna (CRIS - Current Research Information System) |
| مصطلحات موضوعية: | droplet, cross junction, non Newtonian fluid, microfluidics |
| الوصف: | In this paper the generation of non-Newtonian droplets of aqueous Xanthan gum solution (0.3, 0.5 wt%) in a silicone oil flow through a micro cross-junction is experimentally analyzed. A commercial glass cross-junction microchip with hydrophobic walls has been employed to study the droplet generation mechanism. The cross-section of the channel is stadium-shaped, the width of the junction varies between 195 to 390 mu m while the height of the channel is fixed at 190 mu m. Tween 20 (2 wt%), as a surfactant, has been added to the dispersed phase to avoid the coalescence of the droplets and to enhance the droplet formation. With the aim to follow the time evolution of the droplets inside the channel a specific experimental setup has been implemented. The post-processing of the recorded images has been carried out by means of an "in-house" Matlab code. The typical flow patterns obtained by imposing different flow rates at the inlets of the cross-junction have been observed. The effect of the continuous and dispersed phase flow rates as well as the concentration of Xanthan gum solution on the main droplet characteristics has been studied in detail. |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | ELETTRONICO |
| اللغة: | English |
| Relation: | info:eu-repo/semantics/altIdentifier/wos/WOS:000423860100021; volume:923; firstpage:1; lastpage:10; numberofpages:10; journal:JOURNAL OF PHYSICS. CONFERENCE SERIES; http://hdl.handle.net/11585/626418; info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85035191084 |
| DOI: | 10.1088/1742-6596/923/1/012021 |
| الاتاحة: | http://hdl.handle.net/11585/626418 https://doi.org/10.1088/1742-6596/923/1/012021 |
| رقم الانضمام: | edsbas.243C52A2 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1088/1742-6596/923/1/012021 |
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