Topical problems of fluid mechanics 2019

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The conference will be held in the Institute of Thermomechanics, Academy of Sciences of the Czech Republic, v.v.i. in Prague, February 20 – 22, 2019.

Scope of the conference covers the whole field of fluid mechanics.
Papers on experimental, numerical and theoretical investigations of problems in fluid mechanics are welcome.
Reports on new mathematical and/or experimental aproaches to solution of fluid flow problems are also of great interest.

For further details please visit our web. Please pay attention to “Conference Fee” and “Instructions for Authors” as there are some changes!

Looking forward to seeing you in Prague.

Informal meeting on the occasion of the beginning of the semester

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Informal meeting on the occasion of the beginning of the semester will take place in restaurant Globus (Křižíkova 512/68, Praha 8-Karlín) on Monday 15th October at 19:00. All teachers, former students, perspective students and especially 1st year students of mathematical modelling are cordially invited!

If you want to participate, please confirm your participation by sending an email to Karel Tůma (ktuma@karlin.mff.cuni.cz).

Winter semester 2018/2019 — notes

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Notes from the introductory meeting:

  • Questions and remarks concerning the study of mathematical modelling should be sent to:

    If you are not sure who do you want to talk to, please contact Vít Průša (prusv@karlin.mff.cuni.cz).

  • Check mathematical modelling webpages on regular basis. Subscribe to our maling list.
  • The most important decision you are going to make in the course of your study is the choice of the topic of your bachelor/master thesis. Deadline for the choice of bachelor thesis topic is 2nd November 2018. The choice of master thesis topic must be made no later than on 15th February 2018, see the academic calendar. However, we strongly recommend to chose your master thesis topic at your earliest convenince. In general, the sooner your choose the topic, the sooner you can start working. Note that you are requested to present the topic/results already in the summer semester in the seminar Selected problems in mathematical modelling. If necessary, we will organise a special meeting where we will informally talk about the possible topics, and eventually we will together find a topic that fits your needs. If you are interested in such a meeting, please let us know. (Send email to prusv@karlin.mff.cuni.cz, Vít Průša.)
  • Consider membership in SIAM (Society for Industrial and Applied Mathematics) Student Chapter Prague. SIAM Student Chapter has a meeting today, for details please see their webpage.
  • Be active. Send your bachelor-master thesis to Soutěže studentů vysokých škol ve vědecké činnosti v matematice (SVOČ, Competition of university students in mathematics). Try to collaborate with people in the mathematical modelling group.
  • Think of studying abroad (ERASMUS, summer schools and so forth). Faculty coordinator of the ERASMUS programme is Ondřej Pangrác (Ondrej.Pangrac@mff.cuni.cz). All the questions concerning the programme administration — which form should you fill and when you are supposed to do it — should be sent to him, we are really not very good in answering such questions. We can, however, help you with question of scientific nature, such as which university is the best choice regarding your interests.
  • Most of the optional lectures start in the second week of the semester, please be in contact with the lecturers, they will keep you informed. Some invitations to optional lectures are displayed on our webpages, see below.
  • Several scientific seminars are running at the School of Mathematics and across the university. If you are interested, please attend them. Programme of some seminars is shown in the calendar on our webpages.
  • As always, we are going to organise an informal meeting with students and people related to the mathematical modelling group. (Meaning that we will go together to a pub.) Check mathematical modelling webpages on regular basis, we will post the date, time and place as soon as possible. (So far, the preliminary date of the event is 15th October.)
  • Mathematical modelling group members are co-organising, under the auspices of the European Mathematical Society, a traditional summer school Mathematical aspects of fluid flows. If you want to participate in that school, please let us know.

We wish you a successful and inspiring study!

Interesting lectures/seminars (in random order):

Hans Georg Feichtinger: From linear algebra to Fourier analysis // A „mild“ theory of distributions with applications

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Professor Hans Georg Feichtinger (Numerical Harmonic Analysis Group, Faculty of Mathematics, University of Vienna) is going to give a series of lectures From linear algebra to Fourier analysis and A „mild“ theory of distributions with applications. The first lecture is intended for BSc students, the other is intended for MSc and PhD students. For more information please see the attached leaflet.

Winter semester 2018/2019 — opening meeting

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Dear students, Dear colleagues,

Opening meeting of all students of mathematical modelling (fixing the schedule for optional lectures, brief discussion on topics of bachelor/master thesis, overview of available scholarships/projects/stays abroad and so on) will take place on Monday, October 1 at 14:50 in the lecture room K12. We kindly ask all students to participate in the meeting!

If you want to stay in touch with us, please subscribe to our weekly email digest/newsletter.

Primus Research Programme–The interaction of fluids and solids

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Dear colleagues,

please notice the following job announcement by Sebastian Schwarzacher. See also the attached leaflet.

Dear friends,

please find attached a job-announcement for my “Primus Research Programme–The interaction of fluids and solids”. Two positions are available for up to three years starting from the 1.1.2019 at the Charles University, Prague.

The deadline of application is the 16th of November.

Please forward this information to any person who might be interested to apply.

Many thanks and best regards,

Sebastian

Marie-Curie PhD Fellows

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Dear students,

Martin Řehoř, who is currently working at the University of Luxembourg, would like to draw your attention to the following announcement.

The University of Luxembourg (UL) invites applications for four Marie-Curie PhD Fellows (Doctoral Candidate) positions (m/f) as part of the Rapid Biomechanics and Simulation for Personalised Clinical Design (RAINBOW) MCSA European Training Network. RAINBOW is funded under the European Union’s Horizon 2020 research and innovation programme.

For details please see job announcement webpage.

Viscoelastic transitions exhibited by modified and unmodified bitumen

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Dear colleagues,

We would like to invite you to a lecture titled “Viscoelastic Transitions Exhibited by Modified and Unmodified Bitumen” by Murali Krishnan from the Indian Institute of Technology Madras. The lecture will take place on Tuesday, July 24 at 10:00 in K4.

Abstract:
The working temperature of a bituminous pavement can typically range from 75C to -20C. Bitumen shows a wide spectrum of mechanical behaviour in this temperature range and these include those of a viscoelastic fluid, a viscoelastic solid and an elastic solid. Due to the amorphous nature of the material, the transitions between such mechanical responses are gradual. This investigation focuses on the transition between the viscoelastic solid and the viscoelastic fluid state of a wide class of bitumens with regard to unaged and short-term aged conditions. An unmodified binder and three modified binders were subjected to temperature sweep and frequency sweep in the viscoelastic regime across a wide range of temperatures. Depending on the material and the post-processing method followed, one could discern a viscoelastic fluid and a viscoelastic solid regime and a frequency dependent mixture regime consisting of a viscoelastic solid and a viscoelastic fluid, across the tested temperatures and frequencies.
It is shown in this investigation that parameters such as G’–G” crossover and frequency independence of tan(δ) cannot be used to estimate the temperatures corresponding to the onset of either fluid-like or solid-like behaviour of the body as the temperature varies. It is also shown that the time-temperature superposition principle does not hold good in the temperature regime tested (75 to 25C) due to the viscoelastic transitions exhibited by bitumen and modified bitumen.