Stylianos Varchanis

Flatiron Research Fellow at Simons Foundation. Biophysics & Computational Rheology

[Stylianos Varchanis @varchanis]

🌊Just published! Our latest research uncovers the fascinating *emergence of lobed wakes* during the sedimentation of spheres in viscoelastic fluids. This discovery sheds light on pattern formation in complex fluid dynamics! #FluidDynamics #Viscoelasticity https://t.co/2ErAoeARJj

[Stylianos Varchanis @varchanis]

"Discover how the flow of wormlike micellar (WLM) solutions transitions from 'cavity flow' to 'expansion–contraction flow' as we vary concavity dimensions. This study combines simulations with experiments to reveal the complex behaviors of WLMs. Read more: https://t.co/UJwt29dvvA

[Stylianos Varchanis @varchanis]

Dive into our latest paper in Soft Matter (https://t.co/yBvrzk4tPL), where we combine experiments and numerical simulations to study how purely elastic flow asymmetries in the cross-slot geometry are affected by the shear-thinning property of viscoelastic fluids. #Viscoelasticity

[Stylianos Varchanis @varchanis]

🌟 CALL FOR ABSTRACTS! 🌟 Join the Annual European Rheology Conference in Leeds, UK! Submit your abstracts NOW before the deadline on December 15th (https://t.co/jkZosdfxrV).

[Marco De Corato @MaDecorato]

We have a 4-years PhD opening in our lab at the University of Zaragoza in Spain to work on the rheology and flow of associative polymers. Application deadline: 15th of December. Do not hesitate to contact me for more information.

[Stylianos Varchanis @varchanis]

Check our novel thixotropic elasto-visco-plastic model for human blood in the Journal of Rheology (https://t.co/jLheXWwO3G)! It incorporates smooth yielding and an innovative microstructure description, enabling quantitative predictions of prototype blood flow experiments.

[Stylianos Varchanis @varchanis]

Dear fellow researchers,
You are warmly invited to the Annual European Rheology Conference 2024, which takes place at the University of Leeds, UK from 9th-12th April 2024. Details are now available at https://t.co/qxMdIaYnYf
We hope to see you all in Leeds next year!

[Gareth McKinley @garethmckinley]

This is a lovely body of work for a range of different fluids - and introduces a new dimensionless group; the Tanner Number Tn! #everythingflows (and sometime fractures!). As a bonus some of the numerically-computed edge profiles even look like the @SoRheology logo ⏳

[Micro/Bio/Nanofluidics Unit @ShenU_OIST]

Check out our new paper on evaluating popular constitutive models for wormlike micellar (WLM) solutions. For the first time, theoretical predictions are directly compared to microfluidic experiments with entangled WLMs.
https://t.co/g3IHfy1pn0

[Micro/Bio/Nanofluidics Unit @ShenU_OIST]

New paper from @vincenz67878664 Stelios and Simon on the Alignment of Colloidal Rods in Crowded Environments. @MacroJrnls_ACS https://t.co/Cw8tLbWCm4

[Micro/Bio/Nanofluidics Unit @ShenU_OIST]

We probe flow regimes where elastic instabilities arise and demonstrate that all models can only qualitatively predict the flow fields. Our results call for adjustments in existing models or the derivation of new ones, which will correctly predict the extensional response of WLMs