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Thanks Detlef Lohse from Physics of Fluids @ UTwente University of Twente (inactive) for visiting us Utah Chemistry ! Great discussion of bubbles physics/chemistry at the BubbleFest III with the White and Molinero groups!!

🚨Our latest on thin film flows over spinning discs Experiments & Numerical simulations Jason Stafford, Nwachukwu Uzo, Petit Materials Lab TU Delft Online arXiv.org arxiv.org/pdf/2412.12730 @OpenFoam #CFD #Multiphase #FluidDynamics

VOLUME 1000!! cup.org/3VIXOj4 Together with the usual latest research, Volume 1000 includes special Editorials and Focus on Fluids articles. 📸 includes graphical abstracts of Volume 1000 F1 – F10 and background image from Sunil et al. doi: 10.1017/jfm.2021.894

#JFMVol1000 cup.org/3Dipl4u To mark the occasion, past and present Editors were invited to contribute special Editorials: "These things take time: the first 1000 volumes of the Journal of Fluid Mechanics" Colm-cille P. Caulfield cup.org/3P0qu3d

#JFMVol1000 cup.org/3VMs0tD To mark the occasion, past and present Editors were invited to contribute special Editorials: "Reflections on the build-up to the first volume of JFM in 1955 and to the G.K. Batchelor Prize" Tim Pedley Editor 2000-2006 cup.org/4iFF6mq

#JFMVol1000 cup.org/3DpOLxq To mark the occasion, past and present Editors were invited to contribute special Editorials: "JFM in the electronic age" M. Grae Worster (Editor of JFM from 2007 to 2021) cup.org/3P2vfcB

#JFMVol1000 cup.org/40a2hOF To mark the occasion, past and present Editors were invited to contribute special Editorials: "The establishment of JFM Perspectives" Paul F. Linden (Deputy Editor: 2011-2020, Chair of Perspectives Ed Board: 2014-2021) cup.org/3PmY9EN

Read a new #openaccess article in #JFMRapids: "Wall-damped Faraday waves in horizontally oscillating two-layer fluid flows" by Linfeng Piao and Anne Juel. 📚 cup.org/3Dyu3LA #JFM #OA #JFMRapids

The next seminar in the series: Fluid Mechanics Webinar Series is coming up: Title: Bubble dynamics in complex fluids Speaker: Valeria Garbin Time: Fri Feb 7 at 4:00 PM (GMT) / 11:00 AM (EST) More info and RSVP via Cassyni cassyni.com/s/fmws

📢 in Journal of Fluid Mechanics (bit.ly/3QuxMgE) on how viscosity alters drop-impact forces. With Bin Zhang, Cunjing Lv, & Detlef Lohse. The first and second force peaks emerge from distinct flow mechanisms—one at impact, another at take-off. Physics of Fluids @ UTwente bit.ly/4gUvD8P

Journal of Fluid Mechanics Detlef Lohse Physics of Fluids @ UTwente Right at contact, an ‘inertial shock’ decelerates the drop and yields a sharp force peak. Intriguingly, this peak persists for liquids with viscosities up to ~100× that of water, affirming its inertial character despite elevated viscosity.

Journal of Fluid Mechanics Detlef Lohse Physics of Fluids @ UTwente Near rebound, a Worthington jet forms within the retracting drop and induces a second force peak. Its amplitude depends on viscosity, impact speed, and surface tension, linking inertial flow focusing to capillarity and viscous dissipation.

💧🫧 How do gas bubbles inside an impacting droplet alter the collision? Ortega-Roano & van der Meer from Physics of Fluids @ UTwente simulate different bubble configurations, revealing their effect on short-time forces on the substrate, damping collisions. Read more at go.aps.org/3Dzy6rt !

Excited to share our new paper in PNASNews doi.org/10.1073/pnas.2…! Ice cubes often appear cloudy because, as water freezes, air bubbles get trapped and scatter light. But how does freezing rate affect the shape of the bubbles? UMD Research The Robert Mehrabian College of Engineering @PMMH_lab Physics of Fluids @ UTwente

Because water contains dissolved gas, air bubbles nucleate and grow during freezing. We investigated and modeled how these bubbles evolve as the freezing front advances, leading to shapes from pears to worms.

As ice forms around an initial air pocket generated by nucleation, local conditions create an asymmetry in the ice front, producing non-spherical bubbles. They can range from near-spherical to highly elongated.

Why care about bubble shapes in ice? In polar ice cores, bubbles store past atmospheric data, helping decode climate history. Freezing processes matter in materials science, from foods to pharmaceuticals and cryopreservation.

Huge thanks to Virgile Thiévenaz for leading this work. It was great collaborating with Jochem Meijer and Detlef Lohse, and many thanks to all who offered feedback and suggestions!

So inspiring to hear my mentor, Detlef Lohse (Physics of Fluids @ UTwente), share his scientific journey in this The Living Histories Series! His thoughts on curiosity, mentorship, and the "puzzle solving" joy of science resonate deeply. A must-watch! Always so much to learn. bit.ly/3DXBixh