Optimisation of a microfluidic converging channel for extensional measurements

Konstantinos Zografos; M.A. Alves; Monica Oliveira

Optimisation of a microfluidic converging channel for extensional measurements

Konstantinos Zografos, M.A. Alves, Monica Oliveira

Mechanical And Aerospace Engineering

Research output: Contribution to conference › Poster

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Abstract

Strong extensional flows are important for many scientific and industrial applications, especially for non-Newtonian fluids where measurements of extensional properties, such as extensional viscosity, are important. Converging geometries are known for their ability to stretch the fluid in a strong extensional flow along the centreline [1]. At the macroscale, converging channels used as extensional rheometers are usually axisymmetric and operate only with highly viscous fluids to reduce inertial effects. Microfluidic flows are characterised by high deformation rates under small Reynolds numbers (Re),offering a promising platform for investigating fluids described by complex rheological behaviour.

Original language	English
Number of pages	2
Publication status	Published - 14 Apr 2015
Event	10th Annual European Rheology Conference, AERC 2015 - Nantes, United Kingdom Duration: 14 Apr 2015 → 17 Apr 2015

Conference

Conference	10th Annual European Rheology Conference, AERC 2015
Country/Territory	United Kingdom
City	Nantes
Period	14/04/15 → 17/04/15

Keywords

microfluidics
converging flow
extensional measurements
fluid dyamics

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Zografos-etal-AERC-2015-Optimisation-of-microfluidic-converging-channel-for-extensional-measurementsAccepted author manuscript, 71.1 KBLicence: Unspecified

Microfluidics of Complex Fluids: Extensional Rheology from Optimisation to Experiment
Oliveira, M. (Principal Investigator)
EPSRC (Engineering and Physical Sciences Research Council)
3/02/14 → 8/08/16
Project: Research

Cite this

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title = "Optimisation of a microfluidic converging channel for extensional measurements",

abstract = "Strong extensional flows are important for many scientific and industrial applications, especially for non-Newtonian fluids where measurements of extensional properties, such as extensional viscosity, are important. Converging geometries are known for their ability to stretch the fluid in a strong extensional flow along the centreline [1]. At the macroscale, converging channels used as extensional rheometers are usually axisymmetric and operate only with highly viscous fluids to reduce inertial effects. Microfluidic flows are characterised by high deformation rates under small Reynolds numbers (Re),offering a promising platform for investigating fluids described by complex rheological behaviour.",

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author = "Konstantinos Zografos and M.A. Alves and Monica Oliveira",

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T1 - Optimisation of a microfluidic converging channel for extensional measurements

AU - Zografos, Konstantinos

AU - Alves, M.A.

AU - Oliveira, Monica

PY - 2015/4/14

Y1 - 2015/4/14

N2 - Strong extensional flows are important for many scientific and industrial applications, especially for non-Newtonian fluids where measurements of extensional properties, such as extensional viscosity, are important. Converging geometries are known for their ability to stretch the fluid in a strong extensional flow along the centreline [1]. At the macroscale, converging channels used as extensional rheometers are usually axisymmetric and operate only with highly viscous fluids to reduce inertial effects. Microfluidic flows are characterised by high deformation rates under small Reynolds numbers (Re),offering a promising platform for investigating fluids described by complex rheological behaviour.

AB - Strong extensional flows are important for many scientific and industrial applications, especially for non-Newtonian fluids where measurements of extensional properties, such as extensional viscosity, are important. Converging geometries are known for their ability to stretch the fluid in a strong extensional flow along the centreline [1]. At the macroscale, converging channels used as extensional rheometers are usually axisymmetric and operate only with highly viscous fluids to reduce inertial effects. Microfluidic flows are characterised by high deformation rates under small Reynolds numbers (Re),offering a promising platform for investigating fluids described by complex rheological behaviour.

KW - microfluidics

KW - converging flow

KW - extensional measurements

KW - fluid dyamics

M3 - Poster

T2 - 10th Annual European Rheology Conference, AERC 2015

Y2 - 14 April 2015 through 17 April 2015

ER -

Optimisation of a microfluidic converging channel for extensional measurements

Abstract

Conference

Keywords

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Projects

Microfluidics of Complex Fluids: Extensional Rheology from Optimisation to Experiment

Cite this