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MODELLING OF CO-AXIAL AND TRI-AXIAL MILLIFLUIDIC DEVICES FOR CO-EXTRUSION OF SEMI-SOLID SOLIDS

With the use of a milli-fluidics device, it is possible to manipulate small amounts of fluid in the millimeter range with pinpoint accuracy. The millifluidics are currently lacking in studies of the relationship between fluid viscosity, output velocity and output pressure. Thus, this study examines...

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Main Authors:	Al-Sharai, Abdo Ali, Fhong Soon, Chin, Hwang See, Chan, Khee Yee, See, Sek Tee, Kian, Wahab, Mohammed Abdul
Format:	Article
Language:	English
Published:	2023
Subjects:	T Technology (General)
Online Access:	http://eprints.uthm.edu.my/11619/1/J16127_bc966f4f361dddd2691758dfdf81cc77.pdf http://eprints.uthm.edu.my/11619/ https://doi.org/10.11113/aej.V13.18953
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id	my.uthm.eprints.11619
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spelling	my.uthm.eprints.116192024-09-25T07:21:18Z http://eprints.uthm.edu.my/11619/ MODELLING OF CO-AXIAL AND TRI-AXIAL MILLIFLUIDIC DEVICES FOR CO-EXTRUSION OF SEMI-SOLID SOLIDS Al-Sharai, Abdo Ali Fhong Soon, Chin Hwang See, Chan Khee Yee, See Sek Tee, Kian Wahab, Mohammed Abdul T Technology (General) With the use of a milli-fluidics device, it is possible to manipulate small amounts of fluid in the millimeter range with pinpoint accuracy. The millifluidics are currently lacking in studies of the relationship between fluid viscosity, output velocity and output pressure. Thus, this study examines the effects of viscosity on fluid dynamics in the co-axial and tri-axial milli-fluidics. This geometry of the co-axial and tri-axial milli-fluidics consist of single outlet, two inlets and three inlets, respectively. The tri-axial milli-fluidics is 46 mm long and 11.31 mm wide, while, the coaxial milli-fluidic is 64.73 mm long and 9.2 mm wide. The co-axial milli-fluidics constituted of 775 domain elements and 147 boundary elements, while, the tri-axial milli-fluidics mesh constituted of 1518 domain elements and 178 boundary elements. Laminar flow was observed for the flow of the materials through the channels. When the dynamic viscosity approaches 5 mPa.s, the simulation reveals that the flow rate is inversely proportional to the dynamic viscosity for co-axial millifluidics. It was difficult to combine fluids with different viscosities with small volume of water in a narrow boundary, thus the parallel flow of material was observed. When using the one outlet channel for the tri-axial milli-fluidics, the assemble pressure at the three inlets was decreased compared with coaxial milli-fluidic. Even when the dynamic velocity of the fluid at outlet 1 increased, its velocity remained consistent. An extruder using tri-axial millifluidics can be used if the interfacial tension for intake 1 is higher than for inlet 2 and the dynamic viscosity of fluid 1 is above 2 mPas, according to the volumetric fraction model. The tri-axial milli-fluidic was found to be suitable for producing cladding of material with the balanced pressure from the two side channels. 2023 Article PeerReviewed text en http://eprints.uthm.edu.my/11619/1/J16127_bc966f4f361dddd2691758dfdf81cc77.pdf Al-Sharai, Abdo Ali and Fhong Soon, Chin and Hwang See, Chan and Khee Yee, See and Sek Tee, Kian and Wahab, Mohammed Abdul (2023) MODELLING OF CO-AXIAL AND TRI-AXIAL MILLIFLUIDIC DEVICES FOR CO-EXTRUSION OF SEMI-SOLID SOLIDS. ASEAN Engineering Journal, 13 (2). pp. 93-100. ISSN 2586–9159 https://doi.org/10.11113/aej.V13.18953
institution	Universiti Tun Hussein Onn Malaysia
building	UTHM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Tun Hussein Onn Malaysia
content_source	UTHM Institutional Repository
url_provider	http://eprints.uthm.edu.my/
language	English
topic	T Technology (General)
spellingShingle	T Technology (General) Al-Sharai, Abdo Ali Fhong Soon, Chin Hwang See, Chan Khee Yee, See Sek Tee, Kian Wahab, Mohammed Abdul MODELLING OF CO-AXIAL AND TRI-AXIAL MILLIFLUIDIC DEVICES FOR CO-EXTRUSION OF SEMI-SOLID SOLIDS
description	With the use of a milli-fluidics device, it is possible to manipulate small amounts of fluid in the millimeter range with pinpoint accuracy. The millifluidics are currently lacking in studies of the relationship between fluid viscosity, output velocity and output pressure. Thus, this study examines the effects of viscosity on fluid dynamics in the co-axial and tri-axial milli-fluidics. This geometry of the co-axial and tri-axial milli-fluidics consist of single outlet, two inlets and three inlets, respectively. The tri-axial milli-fluidics is 46 mm long and 11.31 mm wide, while, the coaxial milli-fluidic is 64.73 mm long and 9.2 mm wide. The co-axial milli-fluidics constituted of 775 domain elements and 147 boundary elements, while, the tri-axial milli-fluidics mesh constituted of 1518 domain elements and 178 boundary elements. Laminar flow was observed for the flow of the materials through the channels. When the dynamic viscosity approaches 5 mPa.s, the simulation reveals that the flow rate is inversely proportional to the dynamic viscosity for co-axial millifluidics. It was difficult to combine fluids with different viscosities with small volume of water in a narrow boundary, thus the parallel flow of material was observed. When using the one outlet channel for the tri-axial milli-fluidics, the assemble pressure at the three inlets was decreased compared with coaxial milli-fluidic. Even when the dynamic velocity of the fluid at outlet 1 increased, its velocity remained consistent. An extruder using tri-axial millifluidics can be used if the interfacial tension for intake 1 is higher than for inlet 2 and the dynamic viscosity of fluid 1 is above 2 mPas, according to the volumetric fraction model. The tri-axial milli-fluidic was found to be suitable for producing cladding of material with the balanced pressure from the two side channels.
format	Article
author	Al-Sharai, Abdo Ali Fhong Soon, Chin Hwang See, Chan Khee Yee, See Sek Tee, Kian Wahab, Mohammed Abdul
author_facet	Al-Sharai, Abdo Ali Fhong Soon, Chin Hwang See, Chan Khee Yee, See Sek Tee, Kian Wahab, Mohammed Abdul
author_sort	Al-Sharai, Abdo Ali
title	MODELLING OF CO-AXIAL AND TRI-AXIAL MILLIFLUIDIC DEVICES FOR CO-EXTRUSION OF SEMI-SOLID SOLIDS
title_short	MODELLING OF CO-AXIAL AND TRI-AXIAL MILLIFLUIDIC DEVICES FOR CO-EXTRUSION OF SEMI-SOLID SOLIDS
title_full	MODELLING OF CO-AXIAL AND TRI-AXIAL MILLIFLUIDIC DEVICES FOR CO-EXTRUSION OF SEMI-SOLID SOLIDS
title_fullStr	MODELLING OF CO-AXIAL AND TRI-AXIAL MILLIFLUIDIC DEVICES FOR CO-EXTRUSION OF SEMI-SOLID SOLIDS
title_full_unstemmed	MODELLING OF CO-AXIAL AND TRI-AXIAL MILLIFLUIDIC DEVICES FOR CO-EXTRUSION OF SEMI-SOLID SOLIDS
title_sort	modelling of co-axial and tri-axial millifluidic devices for co-extrusion of semi-solid solids
publishDate	2023
url	http://eprints.uthm.edu.my/11619/1/J16127_bc966f4f361dddd2691758dfdf81cc77.pdf http://eprints.uthm.edu.my/11619/ https://doi.org/10.11113/aej.V13.18953
_version_	1811687209075474432
score	13.223943

MODELLING OF CO-AXIAL AND TRI-AXIAL MILLIFLUIDIC DEVICES FOR CO-EXTRUSION OF SEMI-SOLID SOLIDS

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