[Soft-matter] Prof Alidad Amirfazli - York University Toronto - IF PAN Colloquium - Tuesday, March 18, 15:15, online ZOOM

[Panagiotis Theodorakis]

Dear all,

I am kindly bringing to your attention the seminar given at IP PAS 
colloquium on ZOOM by Prof. Alidad Amirfazli (York University, Canada). 
The title of his talk is

'Evaporation of sessile droplets: From Theory to experiments'.

The IP PAS colloquium will take place on Tuesday, March 18 at 15:15 CET 
(Warsaw time).

For further details and how to connect on Zoom, please, I am attaching 
the message below.

Kind regards,

Panos

---------------------------

Ladies and Gentlemen,

It is my great pleasure to invite you to the IP PAS Colloquium:

"Evaporation of Sessile Droplets: From Theory to Experiments"

Professor Alidad Amirfazli, Department of Mechanical Engineering, York
University, Toronto, Canada, on March 18th, 2025 at 15:15

Abstract

This talk is about how small liquid droplets placed on a surface 
evaporate
and why understanding this process is important for application like
cooling systems and inkjet printing. We study the evaporation process by
developing, a simple yet accurate mathematical model called the Point
Source Model (PSM). By applying the PSM approach, instead of tracking
complex details like how the liquid surface moves or how mass transfers,
PSM uses a mathematical shortcut to predict how fast droplets evaporate,
how vapor spreads around them, and how the surface they sit on affects
evaporation. The model was tested with experiments and matched well with
observed results for different droplet sizes, humidity levels, and 
surface
types. It also helped determine how close two droplets need to be before
they start affecting each other's evaporation. Beyond simple 
evaporation,
the talk explores how heating the surface beneath the droplets changes 
the
evaporation behavior of sessile droplets. At low temperatures, 
evaporation
is mainly due to diffusion (random spreading of molecules). But as the
surface gets hotter, vapor flow (natural convection) starts playing a
larger role. The model accurately predicts when this shift happens. If
time allows, the talk will also touch on how evaporation works when 
three
droplets interact, using a correction factor to account for their
positions. The findings are useful for improving technologies that rely 
on
precise droplet control, such as inkjet printers, medical tests, and
cooling systems.

The Zoom platform will be used for this event.

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IP PAS  Colloquium is inviting you to a scheduled Zoom meeting.

Topic: Evaporation of Sessile Droplets: From Theory to Experiments
Time: March 18, 2025 15:15 Warsaw

Dołącz do spotkania Zoom

https://zoom.us/j/98855022584?pwd=oB8DEZJqd9VwUUrYUUXAkqbybJyYBu.1 [1]

Identyfikator spotkania: 988 5502 2584
Kod dostępu: 145612

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Wystarczy jedno stuknięcie na urządzeniu mobilnym
+48223073488,,98855022584#,,,,*145612# Polska
+48223987356,,98855022584#,,,,*145612# Polska

---

Wybierz numer według swojej lokalizacji
* +48 22 307 3488 Polska
* +48 22 398 7356 Polska
* +48 22 306 5342 Polska

Identyfikator spotkania: 988 5502 2584
Kod dostępu: 145612

-----------------------------------------------------------------------

With best regards,
Leszek Sirko
Chairman of the Colloquium
https://www.ifpan.edu.pl/en/ip-pas-seminars/institute-of-physics-colloquium.html 
[2]

**************************************
Prof. dr hab. Leszek Sirko
Institute of Physics
Polish Academy of Sciences
Al. Lotników 32/46
02-668 Warszawa
Poland
Tel: +48 22 1163385
Fax: +48 22 8430927
**************************************



Links:
------
[1] https://zoom.us/j/98855022584?pwd=oB8DEZJqd9VwUUrYUUXAkqbybJyYBu.1
[2] 
https://www.ifpan.edu.pl/en/ip-pas-seminars/institute-of-physics-colloquium.html
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