AERC2022
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The Rheology Course will be held on the 24th and 25th of April (Sunday and Monday) prior to the AERC 2022 at the Meliá Sevilla Hotel. Specifically, the course will take place in the Magnolia Room located on the main floor of the hotel.
Three relevant topics on rheology will be scheduled:
| Rheology Course | Sunday, April 24th | Monday, April 25th |
|---|---|---|
| 09:00 / 10:30 |
Interfacial Rheology (Peter Fischer) |
|
| 10:30 / 11:00 | Coffee Break | |
| 11:00 / 12:30 |
Interfacial Rheology (Jan Vermant) |
|
| 12:30 / 14:00 | Lunch | |
| 14:00 / 15:30 |
Magnetorheology (Juan de Vicente) |
Interfacial Rheology (Peter Fischer) |
| 15:30 / 16:00 | Coffee Break | Coffee Break |
| 16:00 / 17:30 |
Magnetorheology (Juan de Vicente) |
Advanced bulk rheometric methods (Jan Vermant) |
Juan de Vicente studied Physics at the University of Granada (Spain), obtaining the doctoral degree in 2002. He was a FPU and Marie Curie fellow at University of Nice (France), University of Wisconsin-Madison (USA), University of Twente (The Netherlands), Unilever and Imperial College London (UK). Currently, he is full professor of Applied Physics, head of the Magnetic Soft Matter Group and the Director of The Singular Laboratory in Advanced Technologies F2N2Lab at the University of Granada. His research focuses on the rheology of magnetic colloids under non-stationary fields.
Peter Fischer's research work focuses within the framework of soft material science and food engineering on the underlying principles of aggregation, structure, and performance of soft biological materials suitable for food, pharmaceutical, and bio-medical applications. Rheology, including interfacial rheology, neutron and x-ray scattering and tomography, microfluidics, and microbiological techniques are used to study liquid-liquid interfaces, complex assemblies of proteins and biopolymers as well as bread and chocolate. He's a titular Professor at ETH Zürich in the department of Health Sciences and Technology
Jan Vermant studied Chemical Engineering at KU Leuven in Belgium, obtaining the doctoral degree in 1996 under the supervision of Prof. Jan Mewis. His is currently a professor at the ETH Zürich where he heads the laboratory of Soft Materials. The research of Jan Vermant and his coworkers at the ETH Zürch focuses on the rheology and applications of complex fluid-fluid interfaces, colloidal suspensions and the development of novel experimental methods and soft matter applications in materials science. In the field of rheology Jan Vermant has been a recipient of the Weissenberg award of the ESR (2019) and the Bingham medal of the SOR (2021).
BLOCK 1: Magnetorheology
1. Introduction: Non-Newtonian fluid physics and electromagnetic theory.
2. Magnetic fluids: ferrofluids and magnetorheological fluids.
3. Fluid interactions: hydrodynamic force. Stresslet. Two-way coupling. Stokes approximation. Stokesian Dynamics technique. Application to magnetorheology.
4. Magnetic interactions: Fröhlich-Kennelly equation. Internal field calculation. Maxwell's stress tensor formulation. Energy computation. Mean magnetization approximation. Other non-hydrodynamic interactions (London-van der Waals, gravity, brownian motion and contact forces).
5. Macroscopic description: stress tensor. Hydrodynamic and particle stresslets. Thermodynamic stress and rheological constitutive equation. Directed self-assembly and structure under steady and unsteady magnetic fields. Pre-yield regime: static yield stress. Macroscopic and microscopic models. Post-yield regime: shear thinning. Mason number. Master curves and normal stresses.
Block 2-3 Interfacial rheology
0. Introduction: why care?
1. Thermodynamics of interfaces
Where is the interface? Diffuse versus sharp interfaces. Interfacial excess properties, Gibss adsorption isotherm, disjoining pressure and other basic definitions
2. Fluid Mechanics and the stress boundary condition
The interfacial stress boundary condition and the different contributions (interfacial tension versus interfacial stress). Interfacial rheological material functions
3. Interfacial Rheometry
Interfacial shear rheometry (direct methods : DWR, bicone, ISR), interfacial dilatation (pendant drops and throughs), mixed flow field methods and microrheology.
4. Applications
Interfacial rheology of suspension, Thin film dynamics applications in certain areas of application – food, biofilms energy materials).
Block 4 : Advanced bulk rheometric methods
1. Superposition measurement in rheology
a. Parallel versus orthogonal superposition
b. Experimental approaches
c. Application to disperse and multiphase systems
2. High frequency techniques
a. Why
b. Experimental approaches
c. Selected results on disperse and multiphase systems.