CFD modelling of drop formation in a liquid-liquid system
(2007) 6th International Conference on Multiphase Flow, 2007 p.1-8- Abstract
- The formation of an oil drop from a single capillary in a continuous phase flowing perpendicular to the capillary opening has been studied numerically. The shear stress at the interface of the forming drop, the angular velocity inside the drop and the pressure field around the drop have been determined in a cross section of the drop formation area. The results show a maximum pressure in the continuous phase near the stagnation point and a maximum shear stress in both phases nearer the top of the forming drop. The lowest pressures were found behind the top of the drop, where the surrounding flow starts to separate from the interface of the drop. The shear stress outside the drop causes a drag which, together with the drag originated from... (More)
- The formation of an oil drop from a single capillary in a continuous phase flowing perpendicular to the capillary opening has been studied numerically. The shear stress at the interface of the forming drop, the angular velocity inside the drop and the pressure field around the drop have been determined in a cross section of the drop formation area. The results show a maximum pressure in the continuous phase near the stagnation point and a maximum shear stress in both phases nearer the top of the forming drop. The lowest pressures were found behind the top of the drop, where the surrounding flow starts to separate from the interface of the drop. The shear stress outside the drop causes a drag which, together with the drag originated from the pressure field around the drop, promotes drop detachment. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/602182
- author
- Timgren, Anna LU ; Trägårdh, Gun LU and Trägårdh, Christian LU
- organization
- publishing date
- 2007
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- keywords
- VOF, Interfacial shear, Emulsification
- host publication
- 6th International Conference on Multiphase Flow
- editor
- Sommerfeld, Martin
- pages
- 1 - 8
- conference name
- 6th International Conference on Multiphase Flow, 2007
- conference location
- Leipzig, Germany
- conference dates
- 2007-07-08 - 2007-07-13
- ISBN
- 978-3-86010-913-7
- language
- English
- LU publication?
- yes
- id
- 980d0730-57e3-4b99-8c17-a0085cd516e3 (old id 602182)
- date added to LUP
- 2016-04-04 10:39:30
- date last changed
- 2020-03-23 15:12:03
@inproceedings{980d0730-57e3-4b99-8c17-a0085cd516e3, abstract = {{The formation of an oil drop from a single capillary in a continuous phase flowing perpendicular to the capillary opening has been studied numerically. The shear stress at the interface of the forming drop, the angular velocity inside the drop and the pressure field around the drop have been determined in a cross section of the drop formation area. The results show a maximum pressure in the continuous phase near the stagnation point and a maximum shear stress in both phases nearer the top of the forming drop. The lowest pressures were found behind the top of the drop, where the surrounding flow starts to separate from the interface of the drop. The shear stress outside the drop causes a drag which, together with the drag originated from the pressure field around the drop, promotes drop detachment.}}, author = {{Timgren, Anna and Trägårdh, Gun and Trägårdh, Christian}}, booktitle = {{6th International Conference on Multiphase Flow}}, editor = {{Sommerfeld, Martin}}, isbn = {{978-3-86010-913-7}}, keywords = {{VOF; Interfacial shear; Emulsification}}, language = {{eng}}, pages = {{1--8}}, title = {{CFD modelling of drop formation in a liquid-liquid system}}, url = {{https://lup.lub.lu.se/search/files/5590688/603375.pdf}}, year = {{2007}}, }