Brownian motion of particles in fluid is a common collective behavior in biological and physical systems. In a new report on Science Advances, Kai Leong Chong, and a team of researchers in physics, engineering, and aerospace engineering in China, conducted experiments and numerical simulations to show how the movement of vortices resembled inertial Brownian particles. During the experiments, the rotating turbulent convective vortical flow allowed the particles to move ballistically at first and diffusively after a critical time in a direct behavioral transition—without going through a hydrodynamic memory regime. The work implies that convective vortices have inertia-induced memory, so their short-term movement was well-defined in the framework of Brownian motion here for the first time.
16.04.2020, Angel Santarossa from the National University of La Pampa in Santa Rosa, Argentina, received a scholarship to study the interior structure and dynamics of granular grippers.
Sie druckt am MSS Visiere zum Infektionsschutz.
Dr. habil. Igor Goychuk will work on anomalous diffusion and transport processes in the presence of spatial and energy disorder, strong correlation and memory effects, and nonlinear friction.
Packing structure of semiflexible rings
Leopoldo R. Gómez, Nicolás A. García, and Thorsten Pöschel
Matias Macazaga will work on the optimization of the design and performance of a robotic granular gripper using Simulations and Machine Learning.
Angel Santarossa from the National University of La Pampa in Santa Rosa, Argentina, will visit the institute for the next 3 months. He will apply X-ray tomography to particulate systems to reconstruct particle trajectories.
Forscher untersuchen an der FAU die Dynamik semiflexibler Ringe
Wie erreicht man mit Kanonenkugeln die größte mögliche Packungsdichte? Und was passiert, wenn man Gummiringe ungeordnet verpackt? Aufgeklärte und ungeklärte Fragen dieser Art halten die Forschung in Atem.
Was passiert, wenn man Gummiringe ungeordnet verpackt? Damit hat sich an der Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) jüngst ein internationales und interdisziplinäres Forschertrio beschäftigt. Link
Astronaut conducts Cornell experiment on the space station – Cornell Cronicle, Dec. 16. 2019.
Orbiting 250 miles above the Earth on the International Space Station, astronaut and station commander Luca Parmitano conducted the experiment „Inertial Spreading and Imbibition of a Liquid Drop Through Porous Surface“ designed by Professor Michel Louge, professor of mechanical and aerospace engineering at Cornell university, on Dec. 11. MSS collaborated by developing an experimental technique to produce large fluid drops in microgravity and testing the apparatus in drop tower experiments.
A detailed descripton of the experiment is provided on the project’s web site at Cornell.
For some details on the MSS contribution see Laura Steub, Jonathan Kollmer, Derek Paxson, Achim Sack, Thorsten Pöschel, John Bartlett, Douglas Berman, Yaateh Richardson, and Michel Y. Louge, Microgravity spreading of water spheres on hydrophobic capillary plates, EPJ Web of Conferences 140, 16001 (2017).
„Inelastic collapse of perfectly inelastic particles“
Automatisch periodisch: Zufällige Packungen gleich großer Scheiben zwischen parallelen Wänden bilden stets eine periodische Struktur.
Physiker der Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU) haben nachgewiesen, dass zufällige Packungen gleich großer Scheiben zwischen parallelen Wänden immer eine periodische Struktur bilden – unabhängig von der Breite des Behälters.
Am 9. März 2018 endete die 31. Parabelflugkampagne des Deutschen Zentrums für Luft- und Raumfahrt (DLR) erfolgreich: Zwölf Experimente aus Humanphysiologie, Biologie, Physik, Technologieerprobung und Materialwissenschaften befanden sich an Bord des A310 Zero-G.
Physiker der Friedrich-Alexander-
A team of five MSS researchers works currently in Bordeaux to perform parabolic flights. Focus of the experiments are the dissipative properties of granular systems under conditions of microgravity. Further, they perform an educational experiment regaring gyroscopic stabilisation of objects in weightlessness.
Prof. Brilliantov (University Leicester, UK) is one of the most recognized scientists in the field of Kinetic Theory and Statistical Mechanics of granular matter. He will visit MSS for one month to collaborate on phase transitions of systems of active granular particles.
Science News channel “IQ-Wissenschaft und Forschung” of Bayerischer Rundfunk (BR2) reports on our recent results on the velocity distribution of active granular particles.
Moderne Verfahren, wie Computertomographie und numerische Simulationen, führen dazu, dass immer mehr Forschungsergebnisse aus dreidimensionalen Datensätzen bestehen. Der Lehrstuhl MSS zeigt in Zusammenarbeit mit der theoretischen Physik und der Nürnberger Firma Cykyria wie sich solche Datenmengen mit Hilfe von virtueller Realität anschaulich darstellen lassen.
Standort: NatFak (Staudtstraße 5/7), Physikum, Foyer
Thorsten Pöschel berichtet im 237. Podcast der Welt der Physik über granulare Materie.
PhD defense by Nikola Topic
PhD defense by Lídia Almazán Torres
PhD defense by Severin Strobl
The cover picture shows an outflowing hourglass and its different regimes. Detailed information can be found in the publication „Weight of an Hourglass – Theory and Experiment in Quantitative Comparison„
The 100th talk in the series of MSS seminars will be given today by Seyed Habibollah Ebrahimnazhad Rahbari, Korea Institute for Advanced Study (KIAS), Seoul.
Dr. Mubashir Hussain will work on reaction models for the particle-based simulation of combustion processes including the formation of soot.
‘Condensed Matter Physics’ dedicated a special issue 9/2016 to the 65th birthday of our friend and MSS Humboldt-fellow, Stefan Sokolowski.
Happy birthday, Stefan!‘
Habib Ebrahimnejad Rahbari from the Korea Institute for Advanced Study in Seoul, South Korea, will visit the institute for the next 3 months. Habib is an expert in the fields of `wet granular matter’ and `fluctuations in granular systems’.
Matthias Schroeter is Co-Chair of the Gordon Conference on „Particulate Systems in Science and Technology” which takes place July 24-29, 2016 at Stonehill College near Boston. https://www.grc.org/programs.aspx?id=13053
At the WE-Heraeus Physics School on Research in Microgravity, took place in Bad Honnef in July 2016, Harol Torres Menéndez received the Best Poster Price.
Ali Shakeri works in the field of particle-based fluid mechanics.
Matthew Coleman, student from the University of Notre Dame (Indiana, USA), will work at the Institute as a RISE student on „Assessing open-cell foam structures and monoliths for heterogeneous catalysis“.
Dr. Lee will work as researcher at our Institute MSS.. He is an expert on numerical simulation for liquid crystals,
Dr. Nadine Aburumman will work as researcher at our Institute MSS. She will develop and implement particle based algorithms for the simulation of reactive flows
Andreas Schäfer will work as researcher at our Institute MSS. He is working in the field high performance computing and simulation techniques.
MSS alumnus Martin Tupy launches model career, click here.
Harol Torres Menendez will do his doctoral studies at our Institute MSS. He is working on properties of passive and active granular matter.
15 February 2016 – Dr. Satoshi Takada from Kyoto University (Yukawa Institute for Theoretical Physics) is visiting the institute for 3 weeks. Dr. Satoshi is an expert in Kinetic Theory of cohesive granulate. http://www2.yukawa.kyoto-u.ac.jp/~satoshi.takada/
Prof. Dr. Michael Engel will work as Assistant Professor at MSS. His research focuses on understandingg the appearance and role of order in condensed matter. For this aim, Prof. Engel combines scientific knwoledge and engineering prinicples to investigate fundamental processes that drive self-assembly and dynamics on the molecular, nanoscale, and colloidal level.
Prapanch Nair will work as Postdoc at our Institute MSS. He is an expert in Multiphase Flows and Simulation Techniques.
Daniel Nasato will work as Postdoc at MSS. He is an expert in Granular Flows and Granular Packing.
Prof. Thorsten Pöschel was honored a 2015 Distinguished Referee by EPJ.
PhD defense by Michael Heckel
Baofang Song just published an article about the rise of turbulent flow in „Nature“ magazine.
Please find more details on our publication page: The rise of fully turbulent flow
This week the final experiments at the drop tower facility in Bremen were performed. We have now the first results of the drop tower experiment: Imbibition of a water drop into a porous medium in zero-gravity.
For details please see Drop Your Thesis 2015.
The recording from the presentation of Prof. Pöschel at the „Lange Nacht der Wissenschaften“ is now available online as a web stream:
Unbeschwert forschen – Experimentelle Wege zur Schwerelosigkeit (M4V, HD ready (1280x720p))
You can also find the stream in lower qualities or to download here: Unbeschwert forschen – Experimentelle Wege zur Schwerelosigkeit
There are some more impressions of the „Lange Nacht“ in Media Coverage.
Today three of our colleagues, Jonathan, Laura, and Flo, started for the drop tower facility in Bremen. There they will put the last pieces of the experiment together and perform the last mechanical and security tests. The actual drop of the experiment is scheduled for beginning of next week. We wish them good luck and good data.
You can find more information about the ESA project here: Student Projects 2015
The Cluster of Excellence EAM granted Patric Müller the „EAM Starting Grant 2015“ for his proposal „Particle-based simulation of reactive flows PARSIVAL“.
The institute participated at the Science fair “Die Lange Nacht der Wissenschaften Nürnberg-Fürth-Erlangen, Saturday, 24.10.2015″, 6pm to 1am. Prof. Pöschel spoke in front of over 1000 people in the fully occupied Audimax, the biggest lecture hall at the FAU, about realizing microgravity conditions on earth without going to outer space. The lecture was accompanied by several experiments performed by members of the chair.
Ute Hespelein will take over the secretariat at the institute.
We also want to thank Joanna Gargasz for her long support as secretary since the beginning of the institute and wish her all the best for her future.
The Particle Simulations conference is now over and we want to thank all participants from around the world for taking part in this fruitful conference. A lot of beneficial ideas were exchanged and we hope that it will bring additional successful cooperations in the future.
For more information about the conference please visit the website:
Dr. Eric Parteli is appointed as Lecturer in Computational Geosciences at
the University of Cologne. We want to congratulate Eric, who starts on
1. Sept. at the Department of Geosciences. We wish our valued colleague all
Feuerwehr-Großeinsatz: Hotel in Erlanger Innenstadt in Flammen
In der Erlanger Innenstadt hat in der Nacht auf Mittwoch die Fassade eines Gästehauses an der Ecke Innere Brucker Straße/Westliche Stadtmauerstraße gebrannt. Die Feuerwehr war mehrere Stunden im Großeinsatz.
Hotel in Erlanger city in flames: In the Erlanger city has burned the facade of a guest house on the corner inside Bruckerstraße / Westliche Stadtmauerstraße at night on Wednesday. Firefighters were several hours in large-scale operation.
Matthias Schröter will work as a Privatdozent at MSS. He is an expert on granular media and will intensify the experimental research at the institute.
Eric Parteli was appointed to the editorial board of Nature – Scientific Reports.
Launched 2011, Nature – Scientific Reports is a multidisciplinary journal of the Nature Publishing Group (NPG), which covers all areas of the natural sciences – physics, biology, chemistry, earth sciences and the clinical sciences.
Two students of the institute, Laura and Fabian, were accepted for the ESA’s drop your thesis (DYT) program. They will have the opportunity to perform microgravity experiments at the ZARM Drop Tower Facility in Bremen, Germany.
Tara will work on the granular swelling effect.
The new schedule for the MSS-Seminars is now online. The general time and location of the seminars stay the same:
3:30 pm; Seminar room 02.219, Nägelsbachstr. 49b, 91052 Erlangen
Cristian will work on isotropic DSMC.
J.E. Kollmer, A. Sack, M. Heckel, F. Zimber, P. Müller, M.N. Bannerman and T. Pöschel achieved 2nd Prize of the EAM Poster Award 2013 for the Scientific Poster Granular Dynamics in a Shaken Container under Microgravity Conditions.
Achim Sack received a certificate for participating in the „drop your thesis! 2013“ campaign.
Severin Strobl achieved the 1st Prize of the EAM Poster Award 2014 for the Scientific Poster Simulation of Gas Flows in Complex Geometries.
Prof. Pöschel received a certificate for the best lecture in the summer term 2014 for the course „Computeranwendungen in der Verfahrenstechnik 2“. The lectures are anonymously evaluated by the students.
4. – 8. April 2016 Erlangen, Germany
Please visit the spring school website for more information:
Eric Parteli was honored a 2014 Distinguished Referee by EPJ.
MSS has now a new logo.
The student group of Kerstin Avila won the second place (200 Euro) for poster presentation at the CBPT course.
Eric Parteli received a Certificate of Excellence in Reviewing.
PhD defense by Jonathan Kollmer
PhD defense by Patric Müller