[Dottorcomp] Fwd: Da inviare a tutta la Facoltà... si potrebbe inviare anche a Fisica ?

[Giulio Schimperna]

Carissimi,
    ricevo da Alessandro Reali con preghiera di diffusione questo annuncio
di seminario.

Buona domenica,
Giulio


*Mercoledì 5 Febbraio ore 11*
AULA RICCIARDI - DIPARTIMENTO DICAR

*Physics of the complex interface dynamics in drop-laden turbulence*

*Prof. ALFREDO SOLDATI*
*TU WIEN, Università di Udine*


Have you ever wondered how tiny droplets in the air or bubbles in water
influence major environmental and industrial processes?
These microscopic interfaces—thin layers that separate liquids and
gases—are small in size but huge in impact. They act as gateways for the
transfer of momentum, heat, and gases, playing a key role in everything
from climate science to engineering applications. One of the most striking
examples is the exchange of CO₂ between the ocean and the atmosphere. This
process, which happens daily, is heavily influenced by the behavior of
bubbles and droplets in turbulent flows.
The size of these bubbles, the way they interact with the surrounding
fluid, and the properties of their surfaces all determine how much gas is
absorbed or released.
In this talk, Prof. Alfredo Soldati will take us on a journey through the
history and science of tracking interfaces in turbulent flows. He will
introduce the latest mathematical models and computational techniques used
to study how bubbles and drops evolve, particularly focusing on the
phase-field method, which helps simulate how these interfaces move and
interact over time.

Beyond theory, Prof. Soldati will also showcase cutting-edge 3D
experimental imaging techniques, which allow researchers to observe and
analyze complex flow patterns with unprecedented detail. We will explore
different flow conditions where surface tension, density, and viscosity
change, revealing how these factors affect the behavior of bubbles and
droplets. A special focus will be given to the role of surfactants
(substances that modify surface properties, such as soap in water) and how
they influence turbulence, heat transfer, and the movement of dissolved
gases between different fluid phases.

*This lecture promises to be a fascinating exploration of how small-scale
fluid dynamics shape large-scale environmental and industrial processes,
making it relevant to scientists, engineers, and anyone curious about the
hidden mechanics of the world around us.*





_________________________________________________

Alessandro Reali, PhD, MSc
_________________________________________________

Professor of Solid and Structural Mechanics
Rector’s Delegate for International Research and Ranking
Deartment of Civil Engineering and Architecture, University of Pavia

Address: via Ferrata 3, 27100, Pavia, ITALY
E-mail: alessandro.reali a unipv.it
Phone: (+39) 0382 985704
Web: http://www.unipv.it/alereali
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