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De wetenschap van druppels en bellen leeft op in Twente
Druppels en bellen veranderen de stroming van vloeistoffen. En de weerstand tussen water en de scheepswand. Vloeistofonderzoekers aan de Universiteit Twente hebben er hun specialisme van gemaakt.
Nederlands Tijdschrift voor Natuurkunde artikel
NTvN heeft in hun magazine over ons artikel in Physical Review Letters) een stuk geschreven. Zie het artikel van NTvN hier.
UT-studenten ontrafelen natuurkunde achter ultieme ‘water bottle flip’ Youtube-hype leidt tot serieuze wetenschappelijke publicatie
Jacco Snoeijer and Alvaro Marin have just published a paper in American Journal of Physics together with 6 first years students on the physics of Water Bottle Flipping. If you search into the air. In successful attempts, the bottles land squarely on their base and remain upright. During the bachelor course in Module 1, coordinated by Jacco Snoeijer, the students need to team up and perform a physics project of their choice. In this case, the students decided to explore the physics behind water bottle flipping. Together with the students, Alvaro Marin and Jacco Snoeijer turned the project into a scientific publication that it has YouTube for ‘water bottle flipping’, you will find almost 400,000 video clips in which people throw bottles of water – spinning end over end – been just published in American Journal of Physics (Vol.86, Issue 10), and don’t miss the video: featuring original music from Rodrigo Ezeta, Mazi Jalaal and Alvaro Marin!
Detlef Lohse wins Balzan Prize 2018
Detlef Lohse, hoogleraar Physics of Fluids aan de UT, krijgt de prestigieuze Balzan Prize 2018 voor zijn werk op het gebied van vloeistofdynamica. Dit heeft de Italiaans-Zwitserse Balzan Foundation vandaag bekend gemaakt in Milaan. De prijs, waaraan een geldbedrag van 750.000 Zwitserse Franken is verbonden, zal hij in november in ontvangst nemen in Rome.
Richard Stevens ontvangt ERC Starting Grant
Onderzoekers dr. Massimo Sartori (Faculteit ET) en dr. ir. Richard Stevens (Faculteit TNW) ontvangen ieder een ERC Starting Grant van 1,5 miljoen euro. Van de in totaal 3.170 ingediende onderzoeksvoorstellen werd slechts 13 procent gehonoreerd. ERC Starting Grants worden toegekend voor baanbrekende onderzoeksvoorstellen en bieden de onderzoekers de gelegenheid om hun eigen groep op te bouwen.
NWO Veni grant for Guillaume Lajoinie
The Netherlands Organisation for Scientific Research (NWO) awarded a Veni grant to three young UT scientists. Suzanne Janssen (communication studies), Guillaume Lajoinie (phyics of fluids) and Jelmer Renema (photonics) get the opportunity of working out their own scientific ideas, for the coming three years. In this funding round, NWO could grant 154 research proposals, on a total number of 1115. Veni, 250,000 euros for scientists who recently did their PhD, is part of the ‘Vernieuwingsimpuls’ programme (Innovational Research Incentives Scheme) with grants in three phases of academic careers: Veni, Vidi, Vici.
Hot nanoparticles produce giant and explosive bubbles
When gold nano particles in water are illuminated by a laser, they get very hot: well above the boiling point of water. The formation of vapour bubbles caused by this, is well-known. New experiments, however, using a very high speed camera, now show that before this, a bubble is formed that is much larger and, subsequently, explodes violently. For energy conversion of the particles to the liquid they are in, this discovery of early phase dynamics is very important. Researchers of the University of Twente and the University of Utrecht in The Netherlands now publish these new results in the Proceedings of the National Academy of Sciences of the USA (PNAS). Nanoparticles locally speed up the boiling of water when laser light illuminates them. At the surface of the particles, electrons collectively oscillate. Vaporization via these so-called ‘plasmons’ is much stronger than in case you would just locally heat the water using a laser. Until now, the ‘early youth’ of this bubble formation was not taken into account, while this first phase of nucleation and early dynamics determines the subsequent phases to a high extent.
Vici-subsidie voor onderzoek 'soft contact' De zachte materialen van Jacco Snoeijer
Plakkerige gels en andere zachte materialen gedragen zich aan een oppervlak eigenlijk net zo als een vloeistof. Dat is verrassend, en opent de mogelijkheid om de fysica van vaste stoffen te koppelen aan die van vloeistoffen en ‘soft matter’, voor bijvoorbeeld het printen van laagjes van uiteenlopende materialen. UT-hoogleraar Jacco Snoeijer heeft hiervoor nu een Vici-subsidie ontvangen van NWO.
Adequate upscaling thanks to surface roughness
The UT news covers our new publication in Nature Physics on turbulence research.
Varghese Mathai (University of Twente) wins the Best Research Prize (2017) by the European Cooperation in Science and Technology (COST)
Varghese Mathai (University of Twente) wins the Best Research Prize (2017) by the European Cooperation in Science and Technology (COST) in recognition of his work on "Buoyant particles in turbulent flows". The prize is meant for PhD students, postdocs (PD) or academic staff members who qualify as Early Stage Researchers (ESR) whose career spans less than 8 years from the PhD defense. The prize aims to promote the commitment of young investigators for excellence in performing and communicating research on flowing matter. The COST program covers topics including complex fluids, active matter, and complex flows.

The 32nd International Conference on High-Speed Imaging and Photonics ICHSIP-32

Max Planck Gesellschaft
Centre for Scientific Computing