François Rioual
Présentation
My background is in liquid physics studied in Paris.
After a first research experience on granular flows in hoppers in the group of Pr. E.Clément in Paris in 1997, I did my PhD on eolian transport of granular materials under the supervision of Dr. A.Valance and D.Bideau in Rennes (2002). I spent my first postdoctoral time in the Liphy lab. in Grenoble working with Dr. T.Biben and Dr. C.Misbah on the modelling of vesicle dynamics under flow with applications on blood flow rheology (2003). I then joined the foam physics group of Pr. D.Weaire in Trinity College Dublin where I worked on foam rheology (dilatancy) in possible relation to the onset of convective instability in foams (2004).
Since 2005, i worked in IRSTEA then INRAE on particulate flow processes and transfers with applications in environment (spreading technologies in agriculture (TSCF lab), rockfall modelling in mountain areas (ETNA lab)) and chemical engineering related to refrigeration applications for food or bioenergy (FRISE lab) as in grain storage or heat exchange technologies.
I appreciate to do fundamental science on technologically relevant systems with sometimes unexpected results...
More generally, my recent work is part of a more general approach which intends to revisit the different process chains encountered in the agriculture and agro-food sector in the perspective of the necessary energy transition.
Domaines de recherche
Compétences
Publications
Publications
Quelques problèmes de génie thermique de la matière en grains pouvant intéresser le GDR SlammJour,ées du GDR SLAMM, GDR SLAMM, Nov 2024, Le Croisic (FR), France |
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Experimental characterization of the icephobic surfaces properties for optimization of ice slurry production26e Congrès International du Froid (International Congress of Refrigeration 2023 "ICR 2023"), Institut International du Froid (IIF), Aug 2023, Paris France, France. ⟨10.18462/iir.icr.2023.0211⟩ |
Granular Flow Under the Action of Centrifugal Force: A Critical Dynamic Friction CoefficientTraffic and Granular Flow ’07, 2007, PARIS, France |
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Representing particle shape in Discrete Element ModellingRELPOWFLO, 2008, TROMSO- Norge, Norway. pp.214-219 |
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Transferts thermiques dans les matériaux granulaires biosourcés: vers la caractérisation de l'efficacité énergétique d'échangeurs pour la réfrigération33. Congrès de la Société Francaise de Thermique, Mar 2025, Chambéry, France |
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Frisedrum: a new mobile bed heat exchanger for cooling applicationsInternational Congress of Refrigeration 2023, Aug 2023, PARIS, France |
Sheet Flows, Avalanches, and Dune Migration on Earth and Mars1, pp.370-385, 2002, Sixth Microgravity Fluid Physics and Transport Phenomena Conference |
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Non linear dynamics of eolian sand ripplesA.A.Balkema, 2001, PROCEEDINGS OF THE FOURTH INTERNATIONAL CONFERENCE ON MICROMECHANICS OF GRANULAR MEDIA |
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Jamming Patterns and Blockade Statistics in Model Granular FlowsSpringer Berlin Heidelberg, pp.457-468, 2000, ⟨10.1007/978-3-642-59751-0_50⟩ |
Procédé et installation de transfert thermique entre un matériau granulaire et un fluideFrance, Patent n° : FR2302630. 2024 |
Premiers éléments de caractérisation hydrodynamique d'un nouvel échangeur à chaleur en tambour tournant[Rapport de recherche] Paris-Saclay University. 2022 |