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This post-doc topic is supervised by Christophe ALMARCHA (IRPHE) & Pierre BOIVIN (M2P2)

This post-doc topic is supervised by Patrice LE GAL (IRPHE), Benjamin FAVIER (IRPHE), Stephane VIAZZO (M2P2) 
& Uwe HARLANDER (BTU)

This post-doc topic is supervised by Lounes TADRIST (IUSTI), Irina MARTIN (IUSTI) & Maxime CHINAUD (IUSTI)

This post-doc topic is supervised by Gautier VERHILE (IRPHE) & Fabien CANDELIER (IUSTI)

This post-doc topic is supervised by Joel MARTHELOT (IUSTI), Cédric BELLIS & Stéphane BOURGEOIS (LMA)

This post-doc topic is supervised by Emilie Franceschini (LMA) & Laurence Bergougnoux (IUSTI).

July 1st, 2020

It is possible to find all the dates of the Institute's bodies by consulting the calendar.

June 12th, 2020

Consult the "current calls for projects" or "opportunities" sections to find out more...

June 02th, 2020

• Project Anomalous Persistence of Evaporating Dense Sprays (carrier Emmanuel VILLERMAUX / Laboratoire IRPHE)

The purpose of this project is to initiate new research to understand the abnormal persistence of dense evaporative sprays which are, in nature and artifacts, the rule rather than the exception. The question of the air lifetime of aerosol droplets following, for example, exhalation is not obvious. These droplets are usually formed in a swarm, with widely distributed sizes and close spacing so that the academic image of the single droplet evaporating on its own in a dry environment is an inadequate paradigm. These sprays can be impressive, more persistent than expected, a fact that applies to disease transmission but which prevails beyond the context of coughing or sneezing, or the transport of pollutants by agricultural spraying. We explain why new research, guided by old but seemingly forgotten discoveries, is needed to make progress on this issue.

• CABRIBIO project (holder Maxime CHINAUD / IUSTI Laboratory)

The shape of an interface between two immiscible fluids makes it possible to characterize the physico-chemical properties of the interface in a non-intrusive way. These properties are key elements for understanding mass transfer phenomena and biochemical reactions at interfaces. In this project, we propose to study the interfacial properties of a biologically active fluid in the presence of mass transfer and/or stimulated by chemical reactions. We will consider a drop of liquid placed between two horizontal plates in a configuration similar to a Hele-Shaw cell [20]. This experimental device has two main advantages: it allows to finely control the mass transfer (diffusive regime) and to evaluate the interfacial properties in a quasi-static regime. The Hele-Shaw cell makes it possible to separate the effects of heat and mass transfer from the mechanics of the liquid bridge. In this configuration, the interface properties, modified by the biological suspensions contained in the fluid, will be measured simultaneously by an optical technique and a mechanical technique using a precision weight scale. We will measure the shape and position of the interface and the forces of the liquid bridge, which will give us access to the evolution of mass transfers by evaporation and the modifications of surface energies induced by biochemical reactions.

• CROCS project (project leader Thomas FASQUELLE / Laboratoire IUSTI)

Le Présage is a restaurant that will be built in 2021 within the Château-Gombert Technopole in Marseille. This restaurant will combine a Scheffler reflector with solar concentration and a low-energy building to provide a pleasant place to eat high-quality, carbon-free food. A collaboration with the IUSTI laboratory has started in order to work experimentally (thanks to a prototype) and digitally on optics, improvement of heat transfer and thermal energy storage.

• D2LIFE project (project leader Cristian BARCA / M2P2 Laboratory)

Hydrothermal liquefaction is a subcritical water condition process that can convert wet biomass into an oil phase rich in hydrophobic compounds (bio-oil), an aqueous phase rich in soluble compounds and a solid residual phase rich in minerals. A large number of international studies have investigated the production of bio-oil by hydrothermal liquefaction of the residual biomass to provide an alternative energy carrier to conventional fossil fuels. However, very few studies have focused on the recovery of mineral fractions (e.g. phosphorus, metals), and the mechanisms of interaction between mineral and organic compounds during hydrothermal liquefaction are still unclear. This project aims to understand the behaviour of mineral compounds and to describe their distribution among the different phases resulting from the hydrothermal liquefaction of residual biomass, with a particular focus on phosphorus (P). The digestate resulting from the anaerobic digestion of sewage sludge will be used as an organic feedstock. The effect of various parameters, including pressure, temperature, reaction time and reagent addition (CaO), on the conversion pathways and mineral compositions of the effluent phases will be investigated through comparative hydrothermal liquefaction experiments at the laboratory scale. Extraction and selective purification experiments will be conducted to determine the major mineral phases and to assess the availability of P and metals in the solid HLW tailings. Knowledge and understanding of the behaviour of mineral compounds under subcritical water conditions is essential to optimize the hydrothermal process and improve the efficiency of recovery of mineral compounds from the residual phases, according to the concept of "no solid waste generation".

• MONSTER project (leader Malek ABID / Laboratoires IRPHE & IUSTI)

The study of extreme waves is a difficult problem for safety reasons and as an open problem in non-linear physics. In fact, due to global warming, there is an increase in the occurrence of extreme sea waves and extreme wave impacts with destructive effects. In coastal areas, extreme sea waves present a real danger to the population and affect human activities (industry, tourism, maritime transport, fishing, etc.) causing deaths and injuries and significant damage to vessels. From a physical point of view, there is no consensus on the known mechanisms for generating rogue waves. Furthermore, to date, there are no studies within the framework of totally non-linear governance equations that have examined the dynamics of extreme ocean waves in the presence of vertically sheared currents in water of arbitrary depth. The objective of this work is to address this problem through mathematical modelling, numerical simulations and experimental studies.

• THEOS project (leader Philippe LASAYGUES / Laboratoires LMA, IRPHE, IUSTI)

Monitoring and surveillance of children's skeletal growth is essential for the early diagnosis and therapeutic follow-up of paediatric bone pathologies. Today, it is a priority to better understand the biomechanical behaviour of children's bones in order to develop a dedicated diagnostic device associated with new therapeutic perspectives. Relevant research topics are thus proposed: the evaluation of the mechanical characterization of the quality of children's bones, the development of a high-resolution parametric ultrasound modality and the use of ultrasound stimulation as a therapeutic treatment.

May 25th, 2020

After two months of closure, the institute's laboratories are opening their doors partially and gradually.