2014-2015 news & events

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▪ Scientific conference

Published September, 2015

On the 18th of September 2015, the Fed3G organises a scientific conference dedicated to "Fluid - solid transition"

This scientific day of the Fed3G is part of the 1st summer school on multi scale approaches and multiphysics couplings in fluid and solid mechanics, co-organised with Tec21. Besides the usual scientific audience, all 30 PhD students and Post-doc researchers attending the summer school will be present to listen to the invited speakers who will give an up-to-date insight into the problem of fluid to solid transition.


For the detailed programme and registration, please visit the Fed3G website.

▪ ERC grant

Published February, 2015

Nicolas Mordant was awarded a Consolidator grant from the European Research Council (ERC) to pursue his “WATU” research program about Wave Turbulence.

When waves with a sufficient amplitude develop, they can interact and exchange energy from the larger scales to the smaller scales.

This wave turbulence occurs in the oceans for instance, where water layers of different salinity or temperature are subjected to the propagation of 3D internal waves driven by gravity and Coriolis forces. Because these forces play a key role in mixing the density profiles and dissipating the energy in the oceans, the propagation of these waves has to be accurately parameterised in numerical simulations for weather forecast or climate predictions purposes.


The Weak Turbulence Theory is a likely candidate for an efficient parametrization but it seriously lacks experimental support.


Nicolas Mordant was awarded a 2 million euro grant to develop an ambitious research program in which a number of experimental systems will be used to generate controlled wave turbulence. Increasingly complex configurations, ranging from 1D to 3D wave propagation, will be studied thanks to the unique experimental facilities of the LEGI laboratory.

Deformation of a vibrated steel plate measured at 10,000 frame/s

One of the key challenges will be to obtain space- and time-resolved measurements in order to capture the full dynamics of wave turbulence in all these systems and finely describe the energy transfers.


As part of this project, 2 PhD positions are open. 

▪ IDEX Project

Published February, 2015

The main actors of science and education in Grenoble have taken the first step towards the creation of a single world class university: the University Grenoble Alpes.

This long-term strategic evolution has recently materialised in the submission of an IDEX project describing the roadmap to be followed in the near future for achieving the targeted objectives in terms of common structure and governance, research and knowledge transfer, higher education and lifelong learning, student life, and social outreach.

In 2014, the partners of the IDEX project have merged their doctoral schools into a single structure, regrouped their scientific activities under 6 research departments and adopted a common affiliation for their scientific publications, therefore taking a crucial step in the realisation of the University Grenoble Alpes.


Find out more about the UGA

▪ Scientific conference

Published October, 2014

On the 18th of October, the FED 3G Federation organises a scientific conference dedicated to the “Mechanics of Cell growth: applications to tissues and biofilms”


The conference is open to all participants, including Master students, and will take place on the campus (LEGI, Bât. K 1209-1211 rue de la piscine Domaine Universitaire, 38400 Saint Martin d’Hères).


Please follow this link to see the programme and register.

▪ Visitor Seminar

Published October, 2014

On the 14th of October at 11:15 am in room K118 (Laboratory LEGI), Lyazid Djenidi from the University of Newcastle (Australia) will give a seminar entitled: "The lattice Boltzmann method: Applications to Turbulence and Micromixing"

As part of Tec 21 visitor program, Lyazid Djenidi is hosted in the LEGI premises since the beginning of September where he collaborates with Sedat Tardu on a new conceptual mixing strategy for micro mixers (see the project details).


Seminar Abstract:

Since the work of Kim et al. (1987), Spalart (1988), direct numerical simulation (DNS) has become an effective tool for studying turbulent flows. In particular, DNS has greatly helped shedding some light in some fundamental aspects of turbulence. While DNSs of turbulent flows are still largely carried out by solving the Navier-Stokes equations, a relatively new numerical approach is gaining momentum. The method, the lattice Boltzmman method (hereafter denoted LBM), started to be considered as a serious numerical tool after Frisch et al (1986) showed that Navier-Stokes equations can be recovered from the lattice gas automata (LGA) that predated the LBM. Since then, the LBM proved to be as effective as the Navier-Stokes solvers (based either on spectral methods or finite differences). In this seminar, the LBM will be briefly exposed and its application to a few problems in turbulence and micromixing presented.


J. Kim, P. Moin & R. Moser, Turbulence statistics in a fully developed Channel flow at low Reynolds number, J. Fluid Mech., 177,133-166 (1987).

P.R. Sparlart, Direct numerical of a turbulence boundary layer up to Re_theta = 1400, J. Fluid Mech., 187,61-98 (1988).

U. Frisch, B. Hasslacher, & Y. Pomeau, Lattice gas automata for the Navier-Stokes equations. Phys. Rev. Lett. 56, 1505-1508 (1986)


▪ Workshop

Published September, 2014

The international workshop on numerical methods and applications in fluid-structure interactions will take place at the Laboratoire Jean Kuntzmann in Grenoble on the 24 and 25 November 2014.


Invited speakers will provide insights into the new research trends in fluid-structure interactions with a focus on recent results obtained with different modelling and computational methods.


Please click here for all the details about the program and the registration form.


▪ H2020: Bio-based Industries Joint Undertaking

Published September, 2014

On the 2nd of September, Tec 21 will attend the info day of the Bio-based industry Joint Undertaking in Brussels.


The aim of this meeting is to gather all European stakeholders interested in understanding the BBI rules for participation and help them prepare their consortia for the next call for proposals.

Tec 21 is strongly involved in biomass transformation activities, particularly through its work package dedicated to the coupling of fluid mechanics with bio-physical phenomena at microscale. As an associate member of the Bio-based industries consortium, Tec 21 is seeking partnerships with European consortia to develop research and innovation actions in the areas of lignocellulosic feedstock fractionation and processing, cellulose pulp exploitation, fibers and polymers exploitation.


Contact: Mathieu Tilquin, Partnership Manager.

▪ Visitor scientists

Published July, 2014

As part of its Visitor Program, Tec21 is welcoming 8 external scientists in 2014.


Such visitor grants were launched to help foreign scientists develop close collaborations and synergies with our research teams. 

Eight visitor projects were granted this year for either short (typically 3 months), or long stays (3 months per year over 3 years, associated with a PhD grant).


Please find more details about the projects here.

▪ Internship

Published April, 2014

As part of Tec 21 training program, a research internship was recently financed to address the question of nanocrystals preparation and purification from biomass.


Current processes involve the acid hydrolysis of the raw material to solubilise the amorphous matrix and isolate the crystalline fraction. At the end of this treatment, a long sequence of purification steps is necessary to separate the nanocrystals from the acid medium and collect a clean suspension. The researchers from the Department of Pulp and paper Sciences have worked on the coupling of microfiltration and acid hydrolysis to develop a continuous process for the online preparation and washing of nanocrystals fractions.


The aim of this internship is to optimise this coupling strategy and enhance the efficiency of the process in an industrial perspective.


Contact : Agnès Guillet

Starch grain (left) and starch nanocrystals (right) © Grenoble INP - CMTC

▪ PhD Bursary

Published February, 2014

The CNRS and Tec21 are co-financing a doctoral research project entitled “Numerical modelling of the mechanical behaviour of cellulose fibers in a fluid flow”


Following on from the Workshop on “Biorefinery, Fluid Mechanics and Modelling” organised in 2013, four partner laboratories within Tec21 have identified a field of research concerning the mechanical behaviour of cellulose fiber suspensions that has not received appropriate attention from the research community. This topic is a key issue with regard to biomass processing.


By associating their expertise in fluid and solid mechanics, modelling and process engineering, the partners of the project wish to link the fundamental processes involved at the micro-scale level to the industrial processing of biomass constituents.


The position is open to applications until the 15th of March 2014.


See the project description here.


▪ Scientific Conference

Published February, 2014

On March 19th, the FED3G Federation organises a scientific conference on “Mechanics and Physics of Suspensions”


To find more about the speakers and the program please browse the Fed3G website.


Registration form.



▪ Assistant Professor

Published February, 2014


The laboratory SIMAP is seeking candidates for an assistant professor position in its Electromagnetic Processing of Materials research department.

The applicants should have a background in fluid mechanics and should be interested in coupling fluid mechanics with physicochemical and thermal phenomena, or even electromagnetic processes.


Job description (FR)
Adobe Acrobat Document 127.8 KB

▪ New Building

Published January, 2014

On the 9th of January 2014, the University Grenoble Alpes has obtained the planning permission for the construction of the new EDD building.


In early 2016, the upper part of the building will host the activities of the “Mechanics and Risks” research group, and the 2,200 m² of the ground floor, specifically designed to host the mixed activities of the PEI Platform (Processes, Environment, Industry), will put together students, researchers and R&D engineers around shared equipment and collaborative projects.

 These new premises represent the achievement of a long term project initiated by Envirhônalp (The Research Center for Environment and Sustainable Development in Rhône-Alpes) with the ambition of strengthening the contribution of process engineering sciences to the development of clean technologies.

The EDD building (Environment et Développement Durable). Credit: Perspective Amplitude/ Julien Bruno-Mattiet

▪ ERC Grant

Published January, 2014

Philippe Marmottant has been awarded a grant from the European Research Council (ERC) to pursue his “BubbleBoost” research program about the effects of ultrasounds in confined microsystems.


Philippe Marmottant and his colleagues from the Interdisciplinary Laboratory of Physics have designed a specific micro-fluidic setup with a flow-focusing section dedicated to the production of calibrated micro-bubbles (~10 to 100 µm in diameter).

In recent experiments, they observed that when submitted to ultrasound waves, these micro bubbles showed a synchronised resonating vibration (see photo or follow this link to see a video), causing the amplification of acoustic-wave energy in the media. Leveraging this fundamental mechanical phenomenon, Philippe Marmottant has proposed a 5 years research program and received a grant of more than € 1.8 million to develop two main applications of ultrasounds in confined environments.

The first one will be to design a sound amplification system, according to a principle similar to the one used in LASER for light amplification, using a micro-bubble matrix as a gain medium for acoustic waves synchronisation (Sound Amplification Stimulated by Emission of Radiation – SASER).

The second application will be the design of “sound powered micro-bots”, possessing a micro-bubble matrix propeller, that can be activated by a remote ultrasound generator. Such swimming micro-bots would find applications in health as mobile drug dispensers, or as active micro stirrers in lab-on-a-chip fluidic systems where mixing issues are of utmost importance.

The synchronised swimming of bubbles in a sonicated micro-pool (Credit: P. Marmottant)