Extensional flow of blood analogue solutions

P. C. Sousa(1), I. S. Pinho(1), F. T. Pinho(2), M. S. N. Oliveira(1) and M. A. Alves(1)

(1)Faculdade de Engenharia da Universidade do Porto, Departamento de Engenharia Química, CEFT, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal

(2)Faculdade de Engenharia da Universidade do Porto, Departamento de Engenharia

Mecânica, CEFT, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal

Keywords: Blood analogue; viscoelastic fluid flow; microfluidics.

ABSTRACT Human blood is a fluid of complex rheology whose characteristics are enhanced in

small vessels. We studied experimentally the flow of two different blood analogue

solutions with non-Newtonian characteristics and a reference Newtonian fluid (de-

ionized water) through hyperbolic contractions followed by abrupt expansions. The

viscoelastic fluids used as blood analogues are aqueous solutions of polyacrylamide

(PAA, 125 ppm w/w) and of xanthan gum (500 ppm w/w), which have a shear rheology

similar to that of human blood [1].

The microgeometries used have a hyperbolic shape in order to achieve a highly

extensional flow in which the fluid experiences a nearly constant strain rate at the

centerline of the microchannel [2]. In addition to the rheological characterization of the

fluids in shear and extensional flow, visualizations of the flow patterns using streak line

photography and pressure drop and flow rate measurements were also carried out. The

viscoelastic fluids exhibit a complex flow behavior that is considerably different from

the Newtonian fluid flow case. For the Newtonian fluid, inertia leads to the onset of

recirculations downstream of the abrupt expansion while for the viscoelastic fluid flow,

symmetric vortices appear upstream of the contraction due to the elastic nature of the

polymeric solution. The size of these elastic-driven vortices increases with the flow rate

(Deborah number), but is significantly different for the two blood analogue solutions,

with the PAA solution exhibiting a much stronger elastic behavior. These observations

clearly demonstrate that matching the shear viscosity alone is not sufficient to

manufacture a blood analogue solution.

Acknowledgments

We acknowledge financial support of FCT via PTDC/EQU-FTT/71800/2006,

SFRH/BD/28846/2006 and CEFT/BII/2008/01.

References

[1] Vlastos G, Lerche D, Koch B, Samba O & Pohl M. Rheol. Acta, 36 (1997) 160.

[2] Oliveira MSN, Alves MA, Pinho FT & McKinley GH, Exp. Fluids, 43 (2007) 437.

Annual EuropeanRheology Conference

April 7-9, 2010 Göteborg, Sweden

AERC 2010 Conference Information

Photo: Göran Assner

!"#$%&'()"*)%+',-./'0121'

345'#"675)56#5'8$&&'$6#&9:5'5;56$6*'%#<$;$<$5='%&&'5;56$6*='"7'<45'#"675)56#5>''

!"#$%&'()*+,-(.'

•! ?67")+%&'*%<45)$6*'%6:')5*$=<)%<$"6'%<'/4%&+5)='#"675)56#5'#56<)5'

/#%0#$%&'()*+,-(1'

•! .5#5(<$"6'%<'<45'/$<@'A%&&'$6'BC<5D")*''

!2"+$%&'()*+,-(3'

•! /"675)56#5'D%6E95<'%<'A"<5&'F%)G',;5695''

'

'

'

From

8:

009:

00–

9:20

9:20

–10:

0010

:00

–10

:40

Lecture Hall Runan Palmstedtsalen Scaniasalen Catella Valdemar GD VH

Sympo-sium Polymer melts and solutions Complex fluids Complex flows Food and

bio-rheology Applied rheology Rheometry Ultrasonic techniques - ISUD7

10:4

0–11

:00

Keynote LectureManfred Wagner

Peter Holmqvist The phase behaviour and kinetics of attractive rod-like viruses under shear flow.

Oriane Bonhomme Interfacial Instability due to elastic stratification in concentric flow in microfluidics

Xiuying Qiao Effect of fiber network on the rheological behavior of silk fibroin fiber reinforced poly(å-caprolactone) biocomposites

Quentin Barral Three dimensional rheometry: application to yield stress fluids

Reidar Barfod Schüller Effect of random noise on the prediction accuracy of the statistical model for determination of wax appearance temperature from rheological data.

Keynote LectureYasushi Takeda & Hiroshige Kikura

11:0

0–11

:20

Recent progress in modeling of polymer melt rheology

Dimitris Vlassopoulos Dynamics and rheology of colloidal star polymer solutions

J. Tsamopoulos Steady viscoelastic film flow over two-dimensional topography

Antonio Sullo Characterisation of starch/cellulose blends

Galina Kubyshkina Polyamides with gradient structure in medical applications

Gerrit W. M. Peters Semi-crystalline polymers: counting nuclei with rheometry Paradigm shift in flow metering

11:2

0–11

:40 Christian Carrot A modification of the Leonov's

model for the explanation of a secondary plateau on the loss modulus of heterogeneous polymer systems: the leap-frog mechanism

Kuzhir Pavel Shear Rheology of magnetic fibre suspensions

F. T. Pinho A low Reynolds number turbulence model for turbulent channel flow of FENE-P fluids

Yuri Antonov Effect of Sulfate Polysaccharide on the Structure Formation and Phase-separation Behaviour in Biopolymer Emulsion.

Stefania Baldursdottir Development of therniresponsive particulate vaccine formulations

Jan Philip Plog Determination of molecular structures as a function of the deformation by means of simultaneous rheometry and FT-IR spectroscopy

Hideki Murakawa Identification of liquid-gas interface based on ultrasonic reflected signal for two-phase flow velocity measurement

11:4

0–12

:00

D. Auhl Nonlinear flow behaviour of highly-entangled Bimodal polystyrene blends

Simon Rogers Nonlinear response of soft colloidal glasses undergoing yielding

Nouar Chérif Transitional flow of a non-Newtonian fluid in a pipe.Experimental evidence of weak

turbulence induced by shear-thinning behaviour

Azad Emin Dispersion of low viscous oil droplets into thermoplasticized starch matrix in simple shear flow

Ivan Saprunov Time-dependent properties of PA fibers in comparison with corresponded material bulk properties

Andreas C. Voelker Soft materials rheology studied by diffusing wave spectroscopy

Daisuke Ito Two-phase flow monitoring using ultrasonic multi-wave technique

12:0

0–13

:10

13:1

0–13

:30

Dimitris Vlassopoulos Viscoelastic relaxation of entangled exact comb polymers

Keynote LectureNorman J Wagner

Marc-Antoine Fardin Elastic turbulence in the flow of wormlike micelles

Brian Love Gelation of photopolymerized hyaluronic acid grafted with glycidyl methacrylate

A. O. Nieckele Wax deposition of a Bingham fluid in channel flow

Anthony Harriman Multi-functional fluorescent probes for in-situ measurement of visco-elasticity

Yuichi Murai Ultrasound Doppler rheometry from spin response of viscoelastic and bubbly liquids

13:3

0–13

:50

Jung-Eun Bae A new algorithm for time-temperature superposition

Microstructure and rheology relationships for concentrated colloidal dispersions: Shear thickening fluids and their applications.

Jin Suk Myung Shear banding in rotating couette flow of anisotropic particulate suspensions

Emmambux M Naushad Rheology of low calorie mayonnaise with indigenous African teff starch as fat replacer

Florian Démé Rheology and morphology of extruded thermoplastic flour/ PBAT blends : influences and interactions of specific energy, plasticizer content and botanical origin.

Andrew C. Benniston "Clip and Go" technology: taylor-made fluorescent viscosity probes

Takahisa Shiratori Velocity profiling of viscoelastic fluids around a falling sphere

13:5

0–14

:10

E. van Ruymbeke Nonlinear rheology of bidisperse linear polymers: mixing law and tube pressure effect

Rawiwan Banchathanakij Static and dynamic properties of organized molecular systems for the design of silicate mesoporous materials

M.P. Lettinga Competition between shear banding and wall slip in wormlike micelles

Taco Nicolai Universal rheology of xanthan solutions: from visco-elastic solutions to shear thinning gels.

Achraf Guefrech Rheology of silica gels in grouting

Claudia Carotenuto Apparent wall slip induced by roughed plate surfaces

Beat Birkhofer Wall shear measurement based on ultrasonic velocimetry for process in-line rheometry

14:1

0–14

:30

Joachim Kaschta Temperature-dependent elastic properties of linear and various long-chain branched polyolefin melts

Fernando Bautista The rheological global diagram and critical phenomena beyond equilibrium for self-associative fluids

Divoux Thibaut A time resolved study of the yielding transition for a simple yield stress fluid

Thomas Gillgren Impact of melt rheology on zein foam properties

Friedrich Wolff Viscoelastic properties and crosslinking behaviour of a silicone resin

Kyung Hyun Ahn In-situ visualization of capillary flow of concentrated suspensions

Sebastien Manneville Ultrasonic velocimetry in carbon black suspensions

14:3

0–14

:50

Beatriz Olalla Viscoelastic effects related to agglomerates in dispersion of mineral particles within molten polymers

Brian Love Concentration dependent micellization of F127 solutions and the kinetics of ordering using rheology, DSC, and small angle x-ray scattering

Catherine Barentin Influence of boundary conditions on yielding in a soft glassy material

Daniel Johansson Extensional rheology applied to development of gluten-free bread

Moises Garcia-Morales Rheology and foaming kinetics of poly-urethane/urea modified bitumen

Erwin K. Reichel Miniaturized high frequency plate resonators for rheometric applications

Emma Levenstam Bragd Ultrasound based methods for acoustic characterization, in-line viscosity and solid fat content (SFC) measurements of fat blends

16:1

0–16

:30

Emilia Gioffredi Crystallization behavior of organoclay reinforced iPP

Octavio Manero Flow-induced birefringence near of non-equilibrium critical point for worm-like micellar solutions

Keynote LectureSandra Lerouge, Erich Windhab

Patricia Lopez-Sanchez Rheological properties of carrot and tomato dispersions as result of high pressure homogenisation (HPH)

Francisco Javier Navarro Domínguez Rheological properties of new stable MDI isocyanate-based bituminous foam

Francois Caton Fast fourier transform rheometry Maxime Chinaud USV procedure for flowing fluids and suspensions

16:3

0–16

:50

Marina Saphiannikova Effects of strain and stress amplification in filled polymer melts

Shibaev Andrey Viscoelastic behavior and responsiveness of surfactant gels formed by wormlike micelles

Shear banding and other two-layer flows with transient microstructure in theory and applications

Elling-Olav Rukke Rheological studies of butter and margarine exposed to repeated breaks in the cooling chain.

Laurence de Viguerie Evolution of the renaissance oil painting media through rheological clues

Franck Challanges measuring the stress response of viscoelastic fluids during LAOS experiments.

Stéphane Fischer A new high resolution velocity and acoustic turbidity profiler for open-channels

16:5

0–17

:10

Aurélie Papon LAOS: a new signature for the mechanics of filled elastomers

Mônica Naccache Waxy crude oils: rheological characterization, apparent wall slip, and history effects

Chaiwut Gamonpilas Comparative rheological studies of commercial chili sauces

Suraj Deshmukh Rheology of complex urethane adhesives

Reidar Barfod Schüller experimental determination of time dependent yield properties

Jolanda Jenzer Althaus Experiments on water jet induced cyclonic circulation - measurement of flow pattern and sediment concentration at reservoir outlet works

18:00

14:5

0–16

:10

RegistrationChalmers Conference Centre Reception

Welcome ceremony

Wednesday April 7

Cha

ir: J

ohan

na A

hoC

hair:

Man

fred

Wag

ner

Cha

ir: B

ettin

a W

olf

Cha

ir: H

eidi

Nie

lsen

Cha

ir: H

elm

ut M

ünst

edt

Cha

ir: M

arcu

s S

chm

idt

Reception in the City Hall

AERC 2010, tentative program Revised 2010-03-25

Lunch

Coffee Break

Poster session 1

Environmental rheologyPlenary lecture by David Boger

Coffee Break

Cha

ir: J

ean

Fran

cois

Tas

sin

Cha

ir: L

ione

l Cho

plin

Cha

ir: L

ione

l Cho

plin

Cha

ir: J

oao

Mai

a

Cha

ir: M

oshe

Got

tlieb

Cha

ir: V

erus

cha

Fest

erC

hair:

Sam

i Hie

tala

Cha

ir: N

aush

ad E

mm

ambu

x

Cha

ir: J

an E

ngm

ann

Cha

ir: S

usan

a Fi

lipe

Cha

ir: N

iall

You

ng

Cha

ir: M

arcu

s S

chm

idt

Cha

ir: J

ohan

Wik

lund

Cha

ir: D

e C

esar

eC

hair:

Yas

ushi

Tak

eda

From 8:00

9:00

–9:4

09:

40–

9:50

Lecture Hall Runan Palmstedtsalen Scaniasalen Catella Valdemar GD VH

Sympo-sium

Modelling/Simulation and Computational Food and bio-rheology Applied Rheology Complex Flows Dispersion rheology Polymer melts and solutions Ultrasonic techniques - ISUD7

10:0

0–10

:20

Keynote LectureOliver Harlen

Keynote LecturePeter Fischer

A.C. Mulji High Frequency Rheology and Processing of Ink-Jet Fluids

Seyed Mohammad Taghavi Displacement flows in conduits: pseudo-stationary residual layers without a yield stress

François Boyer Normal stresses and particle migration in concentrated granular suspensions

Marco Dressler Microstructural modeling of viscoelastic polybutadiene/montmorillonite clay-nanocomposites

Keynote LectureMathias Fink

10:2

0–10

:40

Jet break-up of polymer solutions in inkjet printing Improved rheological properties of biopolymers through innovations in raw material processing

Milan Kracalik Elongational and shear flow in polymer-clay nanocomposites measured by on-line extensional and off-line shear rheometry

Tobias Himmel The use of thermoplastic elastomers as novel processing aids in extrusion of polyethylene

A.M. Philippe Organisation of disk like particles under flow : Rheo-SAXS investigation

Horst H. Winter Rheology of entropically driven exfoliation of clay in a colloidal gel

Multi-wave Imaging : A solution to image rheological properties of soft tissues

10:4

0–11

:00

Young Joon Choi Simulations of two-particle interactions in shear flow of a viscoelastic fluid using the extended finite element method

Birgitta Schiedt Rheological properties of wheat dough and corresponding model systems

Giovanna Iannuzzi Generation of flow marks – possible relations to the rheological properties of polypropylene melts

Mario Minale The use of rheology to investigate flow through a porous layer

Frederic Blanc Measurement of the shear velocity profile's build up in a concentrated suspension.

Henrik Persson Melt rheology as a tool to evaluate dispersion of expanded graphite in PS

Philippe Schmitt Suspended particles in wastewater: acoustical characterization and modeling

11:0

0–11

:20

11:2

0–11

:40

Monirosadat Sadati Reconstruction of smooth velocity and velocity gradient fields from velocity data obtained in a complex flow situation

Bettina Wolf Viscosity reduction in low-fat chocolate based on a polymeric surfactant

Keynote LectureNorbert Willenbacher Blaise Nsom Slope effect on core-annular flow Talib Dbouk Normal stresses in sheared non-

brownian suspensions

S. J. Lee Rheological behavior of polystyrene/multi-walled carbon nanotube nanocomposites using latex technology

Samsun Nahar Steady and unsteady flow characteristics of a shear thinning fluid through a collapsed elastic tube

11:4

0–12

:00

Grigory Pyshnogray The statistical mechanics of suspension nonlinear dumbbells and modelling of process of polymeric films custing on its basis

Malcolm Mackley The rheology of swallowing Capillary breakup elongational rheometry (CaBER) beyond the cylindrical filament case

Valery Kulichikhin Rheo-X-ray study of polymer nanocomposites in conditions of strong shear flow

Jan Vermant Surface flows of 2D colloidal aggregates and aggregate networks.

Joung Sook Hong Dispersion of multi-walled carbon nanotube in PB/PDMS blend

Reinhardt Kotze Measurement and Analysis of Flow Behaviour in Complex Geometries using Ultrasonic Velocity Profiling (UVP) Technique

12:0

0–12

:20

Anthony Wachs A massively parallel DEM-DLM/FD method for DNS of granular and particulate flows and its application in rheology

Heidi Nielsen The missing link – sensory and rheology study of low fat stirred yoghurt.

Ute Keßner Thermorheology as a very sensitive method to analyse molecular structures

Ahmed Allal How does adhesion control the flow conditions in extrusion

R.I.Tanner Suspension mechanics for spheres and oblate spheroids

Mohammad Ranjbaran A comparative experimental study of relationship between rheological and mechanical properties of extrudate two-layer polymer melts

Erica Camnasio Flow field and sediment deposition in a rectangular shallow reservoir with non symmetric inlet and outlet configuration

12:2

0–12

:40

Peter Van Puyvelde Effect of particles on the flow-induced crystallization of polypropylene at processing speeds

Yumi Matsumiya Viscoelastic and dielectric investigation of segmental dynamics of polystyrene

12:4

0– 13:4 0

Dispersion Rheology Food and bio-rheology

13:4

0–14

:00

Sérgio Frey Numerical simulations of inertia flows of yield-stress fluids via multi-field GLS-type method

Keynote LectureOlivier Pouliquen

Mathias Krebs Experimental investigation and phenomenological rheology of single and two-phasepolypropylene melt

Claire Rigal Experimental study of Newtonian and non-Newtonian fluids in centered and eccentric

cylinders flows

Andreja Zupancic Valant The influence of volume expanders on the rheological properties and the flow of blood in arteries

Frédéric Bossard Rheological investigation of polymer scission and aggregation induced by the dispersion in high molecular weight PEO solutions

De Cesare River intake and desander efficiency testing on a physical model using UVP and LSPIV

14:0

0–14

:20

M.F. Webster A study on Bautista-manero models for worm-like micellar systems Rheology of granular pastes Kalman Geiger A new heuristic flow Law Paula Moldenaers Deformation and break-up of

droplets in controlled mixed flowsGerrit.W.M. Peters Does subcutaneous adipose tissue behave as an (anti-)thyxotropic material?

Víctor Hugo Rolón Garrido The interchain pressure effect in shear rheology

Josef Pal Experimental investigation on the fluid flow driven by an off-axis oriented travelling magnetic field

14:2

0–14

:40

Alexander Morozov Purely elastic and inertio-elastic instabilities in shear layers

Alexandre Pierre Spreading flow of calcium sulfate suspensions: influence of chemical admixtures

Helia Sojoudi Asli Rheologically determined phaseseparation of PVME aqueous solution, influence of spherical nanoparticles

Nagamani Koganti Rheological behavior of starch- N-methyl morpholine N-oxide solutions

P. C. Sousa Extensional flow of blood analogue solutions

Chr. Friedrich Thermo-rheological behavior of hyperbranched polyether polyols: role of molecular weight and stickiness

Sven Eckert Investigations of the bulk flow inside a cylindrical liquid metal column generated by diverse AC magnetic fields

14:4

0–

15:0

0

Rheology of solids Complex fluids Applied Rheology

15:0

0–15

:20

Patrick Ilg Towards constitutive models by systematic coarse-graining the microscopic, non-equilibrium dynamics of polymer melts

Genta Rexha Numerical predictions of the order two batchelor´s coefficient for the dynamic and complex viscosity of a non brownian suspension

Keynote LectureHongbing Lu, Masayuki Nakada

Anton Santamaria Analysis of liquid crystalline behaviour as a route to discover molecular arrangement of inorganic copolymers

Christian Clasen Dispensing of complex fluids – the influence of the rheological properties

Hiroshi Watanabe Rheo-dielectric behavior of cis-polyisoprene under steady shear and LAOS

Cha

ir: S

ven

Eck

Andreas Cramer Application of the Ultrasound Doppler Velocimetry in a Czochralski crystal growth model experiment

15:2

0–15

:40

João Maia Direct simulation of micro- and nano-fibre composites in shear and extensional flows

Rut Besseling Flow dynamics on the particle level in dense suspensions

Experimental methodology for time-dependent polymer materials

Nicolas Mougin Bubbles dynamic in yield stress fluids: internal stresses and wake effects.

S. Nahar Prediction of velocity profiles of shear thinning fluids flowing in tubes

Susana Filipe Non-linear rheological parametersfor characterization of molecular structural properties

in polyolefins

Sven Franke 2d-2c Ultrasound Doppler Array Velocimeter forFlow Investigations in Liquid Metals

15:4

0–16

:00

Christopher Pipe Viscoelastic flow near planar stagnation points on bluff bodies in microfluidic devices

Philippe Coussot A general, conceptual, physical model for the rheology of jammed systems

JF Tassin Molecular picture of shear induced gelation in an associating polymer solution

Laurent Orgeas Xray microtomography and pull-out test to analyze the microstructure and fibre-fibre interactions in a concentrated fibre bundle suspension

Iakovos Vittorias Linear and non-linear rheology of linear polydisperse polyethylene

Klaus Timmel Ultrasonic flow measurements in a low temperature liquid metal model of the continuous steel casting process

16:0

0–17

:00

19:00

Cha

ir: S

ebas

tien

Man

evill

e

Cha

ir: F

rede

ric B

ossa

rdC

hair:

Val

ery

Kul

ichi

khin

Cha

ir: F

rede

ric B

ossa

rdC

hair:

Vito

r Bar

roso

Lunch

Cha

ir: M

iche

l Clo

itre

Cha

ir: P

aula

Mol

dena

ers

Cha

ir: E

rich

Win

dhab

Cha

ir: J

ean-

Fran

cois

Tan

in

AERC 2010, tentative program Revised 2010-03-25

Coffee Break

Poster session 2

Registration

How big are polymers?The span dimension as a measure of polymer size

Plenary lecture by Ole Hassager

Presentation of AERC 2011

Coffee Break

Thursday April 8

Cha

ir: D

avid

Wei

tz

Cha

ir: V

erus

cha

Fest

er

Conference dinner at Hotel Park Avenue

Cha

ir: H

enrik

Ras

mus

sen

Cha

ir: D

imitr

is V

laso

poul

os

Cha

ir: C

rispu

lo G

alle

gos

Cha

ir: Ig

or E

mri

Cha

ir: B

ettin

a W

olf

Cha

ir: P

aula

Mol

dena

ers

Cha

ir: M

iche

l Clo

itre

Cha

ir: B

eat B

irkho

fer

Cha

ir: M

artie

n H

ulse

n

Cha

ir: D

imitr

is V

laso

poul

os

Cha

ir: S

usan

a Fi

lipe

Cha

ir: H

enrik

Ras

mus

sen

Cha

ir: J

an E

n gm

ann

Cha

ir: J

an E

ngm

ann

Cha

ir: D

avid

Wei

tz

Cha

ir: H

enrik

Ras

mus

sen

Lecture Hall Runan Palmstedtsalen Scaniasalen Catella Valdemar GD VH

Symposium Polymer melts and solutions Complex fluids Rheometry Interfacial Rheology of solids Modelling/Simulation and

Computational Dispersion rheology

9:00

–9:2

0

Natalie Germann Rheological and microstructural properties of an extended White-Metzner fluid in eccentric annular flow

F.I. Roschzttardtz Complex rheo-thermal behaviour and universality of multiblocks copolymers

Keynote LectureHelmut Münstedt

Inbal Preker PEO-PDMS block copolymers at isooctane/water interface – interfacial activity and dilatational rheology

Ulrich A. Handge Thermal and viscoelastic properties of polyamide 6/halloysite nanocomposites

Azadeh Jafari Simulation of flows of viscoelastic fluids at high Weissenberg number using a filter-based stabilization of the spectral element method

PFG Banfill Rheology of carbon fibre-reinforced cement pastes

9:20

–9:4

0

Chen-Yang Liu Prob rheology: a simple method to test chain dynamics

Katarzyna Niedzwiedz Determination of yield stress from capillary breakup elongation rheometry (CaBER)

Creep-recovery experiments as a powerful tool to investigate molecular processes in polymer melts

Lazhar Benayhia A dancing droplet: experiments and a model of a Newtonian droplet undergoing large amplitude oscillatory shear flow in another immiscible Newtonian matrix

Didier R. Long Unique plastic and recovery behaviour of nano-filled elastomers and thermoplastic Eelastomers (payne and mullins effects)

Tommi Borg Practical linear viscoelastic models by control theory

Florian J. Stadler Gelation of dilute suspensions of spherical and rod-like zinc oxide nanoparticles by dye absorption – a novel route to gelation

9:40

–10:

00 Salvatore Coppola Viscoelasticity of elastomers from uncured to cured state: effects of polymer structure

Joerg Laeuger Differences between stress and strain control in the non-linear behaviour of complexfluids

Anne Ladegaard Skov Reversible planar elongationof soft polymeric networks

Reza Foudazi Rheology of highly concentrated water-in-oil explosive emulsions

P. Martinoty Mechanical properties of uniaxial magnetic gels

Ian Frigaard Stable multilayer flows with yield stress fluids: entry effects and stability

Jung Gun Nam Strain stiffening of non-colloidal hard sphere suspensions dispersed in Newtonian fluid near liquid-crystal coexistence region

Microrheology

10:1

0–10

:30

Bernadette Duscher The time-concentration superposition of carbon dioxide plasticized polymer melts

Keynote LectureLuca Cipelletti

Christian Wagner Is there a relationship between the elongational viscosity and the first normal stress difference in polymer solutions?

N Huang Rheological studies on the bulk and at theinterface of a pickering oil/water emulsion

L. Grassia On the viscoelastic poisson’s ratio in amorphous polymers

Christian Bailly A proposal to solve the time-modulus discrepancy of tube models for linear entangled polymers

Alain Ponton Structural and rheophysical investigation of magneto-sensitive biopolymeric materials

10:3

0–10

:50

João Maia An experimental study on the criteria forfailure of polymer melts in uniaxial extension: the test case of a polyisobutylene melt in different deformation regimes

Anomalous dynamics in jammed soft matter and its implication for microrheology

Kaijia Yu Extension of cylindrical samples in the Sentmanat extensional rheometer (SER)

Philipp Erni Length time and force scales in emulsions for flavor and fragrance delivery systems

Markus Hütter Thermodynamics perspective on dislocation dynamics

Gaetano D'Avino Experimental and numerical study of migration of a sphere in Couette flow induced by viscoelastic stresses

Pierre J. Carreau Rheology, morp-hology and microstructure development of PC/MWCNT suspensions

10:5

0–

11:2

0

Symposium

Polymer melts and solution + Complex Flows

11:2

0–11

:40

Wilhelm Manfred Establishing a new nonlinear mechanical parameter Q from FT-Rheology: first investigation on entangled linear and comb polymermodel systems

Claude Oelschlaeger Effect of counterion binding efficiency on structure and dynamics of wormlike micelles

Teodor I. Burghelea The role of homogeneity in measurements of the transient elongational viscosityof polymer melts: stressing versus creep

Keynote LectureNikolai Denkov

Toshio Tada Non-linear stress relaxation behavior ofcarbon black filled rubber vulcanizates under various

types of deformation

Chien-Cheng Huang Semidilute polymer solutions under shear flow

Mark Haw Jamming, unjamming, lubrication and dilation in concentrated colloidal dispersions

11:4

0–12

:00

Henrik K. Rasmussen Does the interchain pressure effect exist in flow of polymer melts?

Andreas Schneider Direct measurement of shear-induced cross correlation of Brownian motion

Zden Star! On the “viscosity overshoot” during the uniaxial extension of a low density polyethylene Viscous friction in sheared foams and emulsions

Noëlle Billon Thermomechanical constitutive modelling for semi crystalline polymers at a meso

scale.

C.Tzoumanekas Tube segment survival probability from computer generated trajectories: onset of tube confinement

Jean Charles Majeste Concentration dependence of the non linear viscoelastic properties of polymer-grafted particles in polymer melt

12:0

0–12

:20

Vitor C. Barroso Non-linear rheological properties of long-chain branched polyethylenes

Catalin Mihai Balan influence of elasticity on the vortical structures formed in micro-channels geometries

Martin Rides Measurement of the extensional flow behaviour of fluids using a modified rotational rheometer

Gerald Fuller Particle removal: turning liquids into soft adhesives

Cornelia Grabsch New approach for the application of rheological models for the interpretation of

viscoelastic substances

T N Phillips Mathematical and computational models for compressible viscoelastic flows

Pasquino Rossana Shear induced ordering of spheres in a wormlike micellar solution

12:2

0–12

:40

Stella Poyiadji Incompressible poiseuille flows of newtonian liquids with a pressure-dependent viscosity

Manlio Tassieri Measuring storage and loss moduli using optical tweezers: broadband microrheology

Suraj Deshmukh High throughput rheology Gerald Fuller Interfacial rheology of the Tear film H. Pleiner Director dynamics in nematic single-

crystal elastomers

Olivier Botella Recent progress on the LS-STAG immersed boundary method for the computation of viscoelastic and pseudoplastic liquids

Kostas D. Housiadas A differential model for the rheological properties of concentrated suspensions with weakly viscoelastic matrices

12:4

0–13

:40

13:4

0–14

:00

Jerome Claracq Melt processability of self-assembly materials

Nahn Ju Kim Dynamics of aqueous polymer solutions under combined electric and flow field in microchannel

Robert Vogt Experimental approach to determine high frequency rheological properties of polyethylene

Angelo Pommella Deformation of surfactant vesicles in shear flow

A. Blaise Characterization of the micro-mesostructure of HDPE under uniaxial tensile test by X-ray microtomography, incoherent polarized steady-light transport and small-angle X-ray scattering

R J Poole Purely-elastic instabilities in lid-driven cavities

Innocent Boudimbou In-situ characterisation of elementary dispersion mechanisms of silica granules in a polymer matrix under the action of shear

14:0

0–14

:20

Jaroslav Strnadel Drag coefficient of solid spheres falling through viscoelastic shear thinning fluids

Pier Luca Maffetone Simulation of particle migration in tube flow in a viscoelastic fluid

Seung Jae Baik Normal stresses of complex fluids in thin film rheology

Mitropoulos Varvara Tailoring protein covered interfaces

D. Rogez Shear mechanical anisotropy of uniaxial nematic side-chain liquid-crystalline elastomers with planar and homeotropic alignments

A.M. Afonso Numerical studies of electro-osmotic flows of viscoelastic fluids

Guillaume Ovarlez Three-dimensional flows of yield stress fluids

14:2

0–14

:40

Fatemeh Goharpey Rheology and morphology of dynamically asymmetric LCST blends: polystyrene/poly (Vinyl methyl ether)

Oliveira Mónica Elastic-driven instabilities in microfluidic flow-focusing devices

Thomas Schweizer How reliable is N2 of a polymer melt determined with a cone-partitioned plate rheometer?

Pierre Carreau Relationships between rheology and morphology in thermoplastic olefin (TPO) blends

Richard Holm Efficient pumping in waste streamsHossein Nazockdast Viscoelastic based modeling of extrudate swell of acrylonitrile- butadiene-styrene/clay nanocomposite

Patrick Ilg Chaining versus gelation in dipolar colloids and their influence on structure and dynamics

14:4

5–

15:0

0AERC 2010, tentative program Revised 2010-03-25

Closing of the conference in lecture hall Runan

Coffee Break

Friday April 9

Cha

ir: J

ohan

na A

huC

hair:

Joh

anna

Ahu

Cha

ir: M

ikae

l Rig

dahl

Cha

ir: M

ikae

l Rig

dahl

Cha

ir: C

hris

toph

er P

ipe

Cha

ir: M

oshe

Got

tlieb

Cha

ir: H

elm

ut M

ünst

edt

Cha

ir: H

elm

ut M

ünst

edt

Cha

ir: T

im P

hilli

ps

Cha

ir: C

hris

tian

Cla

sen

Cha

ir: P

eter

Fis

cher

Cha

ir: P

eter

Fis

cher

Cha

ir: J

an V

erm

ant

Cha

ir: M

icha

el W

ebst

erC

hair:

Tim

Phi

llips

Cha

ir: Ig

or E

mri

Cha

ir: Ig

or E

mri

Lunch

Cha

ir: P

ier L

uca

Mat

teta

neC

hair:

Chr

isto

pher

Pip

e

Cha

ir: C

hris

tian

Cla

sen

Cha

ir: G

eral

d Fu

ller

Cha

ir: M

artie

n H

ulse

n

Cha

ir: M

iche

l Cle

itre

Cha

ir: D

imitr

is V

laso

poul

osC

hair:

Phi

llip

Ban

fill

Cha

ir: P

hilli

p B

anfil

l

Cha

ir: D

ietm

ar D

rum

mer

Cha

ir: D

ietm

ar D

rum

mer