Curriculum Vitae

ea Name: Pierre G. Rognon
Age: 27 years
Nationality: French
Position: Post-doc (CNRS)
Matière et Systèmes Complexes
Bâtiment Condorcet, 10 rue Alice Domon et Léonie Duquet
75205 Paris cedex 13
Phone: +33 (0)1 57 27 62 70
Fax: +33 (0)1 57 27 62 11

Scientific Cursus

2006-2008 Post-doc (CNRS)
Simulation of particles in a viscous fluid

What is the behavior of materials made of soft units in a viscous fluid, such as foams, emulsions and granular suspensions? What is the origin of their constitutive laws? Is there any dilatancy effect, any shear-banding?
To get new insights on these issues, I am developping a new numerical method (Soft-Dynamics) which simulates both motion and deformation of each unit from their interactions via the fluid.
More detail

Keywords: Rheology, foam, emulsion, dense suspension, discrete simulation
Direction: C. Gay
Affiliation: Collaboration between Centre de Rechechre Paul Pascal (CNRS Bordeaux) and Matière et Systèmes Complexes (CNRS Paris 7).

2003-2006 PhD (École Nationale des Ponts et Chaussées)
Rheology of cohesive granular materials - Application to dense snow avalanches
Special PhD Price of the École Nationale des Ponts et Chaussées (2006).

How does snow flow? How does its behavior depend on the snow grains adhesion, and on the presence of aggregates? I investigated these multi-scale rheological issues through experiment in high altitude with natural snow, and Molecular Dynamics simulation of cohesive granular flow. More detail

Keywords: Rheology, snow, granular, adhesion, in situ experiment, discrete simulation
Direction: P. Coussot, F. Chevoir, M. Naaïm
Affiliation: Collaboration between Navier Institut (CNRS-LCPC-ENPC, Champs sur Marne) and CEMAGREF (Grenoble).

2002-2003 Master Thesis (East-Paris University) , major
Cohesive granular flow: simulation and modelization
Granular flow down a slope: experimental study of jamming transition
Keywords: Rheology, granular, adhesion, discrete simulation, experiment
Direction: F. Chevoir
Affiliation: Navier Institut (CNRS-LCPC-ENPC, Champs sur Marne), Master Modelization and Simulation of Materials (East-Paris University)


Scientific approach
I feel efficient to combine experiments and simulations. I am used to collaborations with others scientists (P. Mills, D. Wolf, O. Pouliquen...), work in various institutions (both PhD and Post-Doctorat in collaboration), and participations in different workshops (French GdR on Granular Matter and GdR on Foams, to European Project SATSIE which supports snow experiments, and to ANR project which supports my Post-Doctorat).

In situ and laboratory experiments: sensors and structure developement, data acquisition and treatment (Labview). Discrete Simulation: programming in Fortran, C, C++ (OpenGl) using Linux and associated free software.


Climbing, alpinism Nevado Ampato (Peru, 6300 m), Nevado Ishinca (Peru, 5400 m)

Violin Player since 20 years, in classical and modern groups.