Droplets tracing in a T-junction microchannel

Emulsions consist of small liquid droplets immersed in another liquid, typically either a mix of oil in water or water in oil. Emulsions have wide applications in the production of pharmaceutical products, food and cosmetics. The properties and quality of an emulsion typically depend on the size and...

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Main Authors:	Nur Tantiyani Ali Othman, An-Najmi Mohd Farid
Format:	Article
Language:	English
Published:	Penerbit Universiti Kebangsaan Malaysia 2018
Online Access:	http://journalarticle.ukm.my/12631/ http://journalarticle.ukm.my/12631/ http://journalarticle.ukm.my/12631/1/7.pdf

id	ukm-12631
recordtype	eprints
spelling	ukm-126312019-03-12T10:29:47Z http://journalarticle.ukm.my/12631/ Droplets tracing in a T-junction microchannel Nur Tantiyani Ali Othman, An-Najmi Mohd Farid, Emulsions consist of small liquid droplets immersed in another liquid, typically either a mix of oil in water or water in oil. Emulsions have wide applications in the production of pharmaceutical products, food and cosmetics. The properties and quality of an emulsion typically depend on the size and the distribution of the droplets. Thus, the objective of this study was to investigate in detail the formation and behaviour of droplets in a T-junction microchannel. By setting up a model and applying a laminar two-phase flow in ANSYS© simulation, the particle droplets distribution was observed. The model used the predefined wetted wall boundary condition at the solid walls, with a contact angle of 135°. In this study, the behaviour and flow pattern of the particles along the T-junction microchannel were observed with regard to the effect of the initial particle concentration, the flow rate of the particles, and the initial velocity feed through the inlets of the microchannel. From the results, the effects of the velocity, mixing time and flow rate of the particles on the particle distribution and mixing were studied. It was shown that the optimization process was achieved at a flow rate of 0.025 mL/s, with the mixing process occurring within 1.6 seconds and the velocity feed at the two inlets being VA = 0.02 m/s and VB = 0.04 m/s, where the particles experienced less lift shear and compressive forces near the outlet, which caused the mixing process to become efficient. Penerbit Universiti Kebangsaan Malaysia 2018 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/12631/1/7.pdf Nur Tantiyani Ali Othman, and An-Najmi Mohd Farid, (2018) Droplets tracing in a T-junction microchannel. Jurnal Kejuruteraan, 30 (1). pp. 47-53. ISSN 0128-0198 http://www.ukm.my/jkukm/volume-301-2018/
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Kebangasaan Malaysia
building	UKM Institutional Repository
collection	Online Access
language	English
description	Emulsions consist of small liquid droplets immersed in another liquid, typically either a mix of oil in water or water in oil. Emulsions have wide applications in the production of pharmaceutical products, food and cosmetics. The properties and quality of an emulsion typically depend on the size and the distribution of the droplets. Thus, the objective of this study was to investigate in detail the formation and behaviour of droplets in a T-junction microchannel. By setting up a model and applying a laminar two-phase flow in ANSYS© simulation, the particle droplets distribution was observed. The model used the predefined wetted wall boundary condition at the solid walls, with a contact angle of 135°. In this study, the behaviour and flow pattern of the particles along the T-junction microchannel were observed with regard to the effect of the initial particle concentration, the flow rate of the particles, and the initial velocity feed through the inlets of the microchannel. From the results, the effects of the velocity, mixing time and flow rate of the particles on the particle distribution and mixing were studied. It was shown that the optimization process was achieved at a flow rate of 0.025 mL/s, with the mixing process occurring within 1.6 seconds and the velocity feed at the two inlets being VA = 0.02 m/s and VB = 0.04 m/s, where the particles experienced less lift shear and compressive forces near the outlet, which caused the mixing process to become efficient.
format	Article
author	Nur Tantiyani Ali Othman, An-Najmi Mohd Farid,
spellingShingle	Nur Tantiyani Ali Othman, An-Najmi Mohd Farid, Droplets tracing in a T-junction microchannel
author_facet	Nur Tantiyani Ali Othman, An-Najmi Mohd Farid,
author_sort	Nur Tantiyani Ali Othman,
title	Droplets tracing in a T-junction microchannel
title_short	Droplets tracing in a T-junction microchannel
title_full	Droplets tracing in a T-junction microchannel
title_fullStr	Droplets tracing in a T-junction microchannel
title_full_unstemmed	Droplets tracing in a T-junction microchannel
title_sort	droplets tracing in a t-junction microchannel
publisher	Penerbit Universiti Kebangsaan Malaysia
publishDate	2018
url	http://journalarticle.ukm.my/12631/ http://journalarticle.ukm.my/12631/ http://journalarticle.ukm.my/12631/1/7.pdf
first_indexed	2023-09-18T20:03:02Z
last_indexed	2023-09-18T20:03:02Z
_version_	1777406976062390272

Droplets tracing in a T-junction microchannel

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