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<p>Dear all,</p>
<p>I am kindly bringing to your attention the seminar given at IP PAS colloquium on <strong>ZOOM</strong> by <strong>Prof. Alidad Amirfazli </strong>(York University, Canada). The title of his talk is</p>
<p>'<strong>Evaporation of sessile droplets: From Theory to experiments</strong>'.</p>
<p>The IP PAS colloquium will take place on <strong>Tuesday, March 18 at 15:15 CET</strong> (Warsaw time).</p>
<p>For further details and how to connect on Zoom, please, I am attaching the message below.</p>
<p>Kind regards,</p>
<p>Panos </p>
<p>---------------------------</p>
<p><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">Ladies and Gentlemen,</span><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">It is my great pleasure to invite you to the IP PAS Colloquium:</span><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">"Evaporation of Sessile Droplets: >From Theory to Experiments"</span><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">Professor Alidad Amirfazli, Department of Mechanical Engineering, York</span><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">University, Toronto, Canada, on March 18th, 2025 at 15:15</span><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">Abstract</span><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">This talk is about how small liquid droplets placed on a surface evaporate</span><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">and why understanding this process is important for application like</span><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">cooling systems and inkjet printing. We study the evaporation process by</span><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">developing, a simple yet accurate mathematical model called the Point</span><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">Source Model (PSM). By applying the PSM approach, instead of tracking</span><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">complex details like how the liquid surface moves or how mass transfers,</span><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">PSM uses a mathematical shortcut to predict how fast droplets evaporate,</span><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">how vapor spreads around them, and how the surface they sit on affects</span><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">evaporation. The model was tested with experiments and matched well with</span><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">observed results for different droplet sizes, humidity levels, and surface</span><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">types. It also helped determine how close two droplets need to be before</span><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">they start affecting each other’s evaporation. Beyond simple evaporation,</span><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">the talk explores how heating the surface beneath the droplets changes the</span><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">evaporation behavior of sessile droplets. At low temperatures, evaporation</span><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">is mainly due to diffusion (random spreading of molecules). But as the</span><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">surface gets hotter, vapor flow (natural convection) starts playing a</span><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">larger role. The model accurately predicts when this shift happens. If</span><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">time allows, the talk will also touch on how evaporation works when three</span><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">droplets interact, using a correction factor to account for their</span><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">positions. The findings are useful for improving technologies that rely on</span><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">precise droplet control, such as inkjet printers, medical tests, and</span><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">cooling systems.</span><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">The Zoom platform will be used for this event.</span><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">------------------------------</span><wbr style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">------------------------------</span><wbr style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">------------</span><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">IP PAS Colloquium is inviting you to a scheduled Zoom meeting.</span><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">Topic: Evaporation of Sessile Droplets: From Theory to Experiments</span><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">Time: March 18, 2025 15:15 Warsaw</span><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">Dołącz do spotkania Zoom</span><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><a style="color: #1155cc; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" href="https://zoom.us/j/98855022584?pwd=oB8DEZJqd9VwUUrYUUXAkqbybJyYBu.1" target="_blank" rel="noopener noreferrer" data-saferedirecturl="https://www.google.com/url?q=https://zoom.us/j/98855022584?pwd%3DoB8DEZJqd9VwUUrYUUXAkqbybJyYBu.1&source=gmail&ust=1742159246999000&usg=AOvVaw1uKOEeb_-69A_Gzcp2nbcX">https://zoom.us/j/98855022584?<wbr />pwd=oB8DEZJqd9VwUUrYUUXAkqbybJ<wbr />yYBu.1</a><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">Identyfikator spotkania: 988 5502 2584</span><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">Kod dostępu: 145612</span><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">---</span><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">Wystarczy jedno stuknięcie na urządzeniu mobilnym</span><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">+48223073488,,98855022584#,,,,</span><wbr style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">*145612# Polska</span><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; 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background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">Wybierz numer według swojej lokalizacji</span><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">• +48 22 307 3488 Polska</span><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">• +48 22 398 7356 Polska</span><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">• +48 22 306 5342 Polska</span><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">Identyfikator spotkania: 988 5502 2584</span><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">Kod dostępu: 145612</span><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">------------------------------</span><wbr style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">------------------------------</span><wbr style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">-----------</span><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">With best regards,</span><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">Leszek<span> </span></span><span class="il" style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">Sirko</span><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">Chairman of the Colloquium</span><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><a style="color: #1155cc; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" href="https://www.ifpan.edu.pl/en/ip-pas-seminars/institute-of-physics-colloquium.html" target="_blank" rel="noopener noreferrer" data-saferedirecturl="https://www.google.com/url?q=https://www.ifpan.edu.pl/en/ip-pas-seminars/institute-of-physics-colloquium.html&source=gmail&ust=1742159246999000&usg=AOvVaw3E6NkosseWXidEMXw1iCyw">https://www.ifpan.edu.pl/en/ip<wbr />-pas-seminars/institute-of-phy<wbr />sics-colloquium.html</a><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">******************************</span><wbr style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">********</span><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">Prof. dr hab. Leszek<span> </span></span><span class="il" style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">Sirko</span><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">Institute of Physics</span><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">Polish Academy of Sciences</span><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">Al. Lotników 32/46</span><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">02-668 Warszawa</span><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">Poland</span><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">Tel: +48 22 1163385</span><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">Fax: +48 22 8430927</span><br style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">******************************</span><wbr style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;" /><span style="color: #222222; font-size: small; font-family: Arial, Helvetica, sans-serif; background-color: #ffffff;">********</span></p>
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