Project AERONANO: Nanometric aerosols in the lower part of the airways.
This project is devoted to the study of aerosols constituted by particles whose size is of the nanometer scale, and their behaviour in the lower parts of the human airways.
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Project CONTACT2D: Contacts between vesicles.
We aim at studying the treatment of contacts between the different particles. The aim of this project is to propose numerical(s) method(s) capable to ensure the non intersection constraints between the particles and compute contact forces between them in the two dimensional case.
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Project EXPAND: Compaction properties of highly packed assemblies.
This project aims at investigating geometrical and rheological properties of highly packed grain assemblies. We plan to study the influence of non-sphericity of grains upon the maximally random jammed solid fraction by considering elongated grains made of two or more overlapping spheres.
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Project GADMHD: Discontinuous Galerkin finite volume schemes for the MHD system.
This project is devoted to the numerical study of the MHD system by a discontinuous Galerkin method.
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Project GLOB: Simulation of red blood cells aggregation.
This project aims at investigating the individual and collective behaviour of red cells, in the context of granular flow modeling. Aggregation of red cells can be reproduced by prescribing short range interaction forces between those assemblies. We plan to investigate the possibility to reproduce the rouleaux formation and breaking, lateral migration of RBC's in tube flows and the long-time asymptotic behaviour of aggregates.
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Project HEPATO: Modeling and simulations of therapies of liver tumors.
The present proposal is devoted to modeling and simulations of heat transfer and blood flows in the liver macrocirculation during mini-invasive therapies of liver cancers. Reliable and robust softwares can afterward be incorporated in computer-aided medical decision tools for current practice in order to guide and to optimize the medical check-up and treatment planning.
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Project HOAT: Higher-order approximations for transport dominated systems.
The accuracy of numerical simulations in computational fluid dynamics (CFD) may be significantly affected by the discretization scheme chosen for the convective terms. This project aims at investigating the efficiency and the properties of new numerical schemes based on a procedure proposed by Jameson for the design of a broad class of essentially local extremum diminishing (ELED) schemes.
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Project HYDROMESH: Lagrangian hydrodynamic, modelling and mesh adaptation.
This project is devoted to the simulation of multifluid flows (coupling of Euler equations of gas dynamics with turbulence), on unstructured meshes in the Lagrangian framework. From a C++ code which is already implemented, we will address the three following independent problems: hydrodynamics (introduction of a behaviour law), diffusion (with isotropic and/or anisotropic coefficients, with a finite-volume method) and mesh adaptation.
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Project ICF: ENO schemes for Lagrangian hydrodynamics in the context of ICF simulation.
The use of Lagrangian hydrodynamic schemes is a cornerstone for the simulation of Inertial Confinement Fusion (ICF). J. Cheng and C.-W. Shu have proposed a high order ENO scheme for unstructured grids to solve Euler equations in Lagrange coordinates. The work will consist to implement, evaluate and improve the scheme for 2D compressible hydrodynamics representative test cases.
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Project MASDA: Modeling and simulations of erosion and deposition in avalanches.
This project is dedicated to the numerical modeling of erosion and deposition in avalanches. The idea is to investigate the flowing layer of granular avalanches, by performing a variable transformation on local coordinates over the unknown interface between the static and flowing layers.
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Project PODREO: Numerical modeling of the respiratory tract.
A numerical lung would certainly be very helpful in the understanding of some of the deceases and a way to guide the intuition for curative gestures. But, from the computational point of view it is not affordable to describe the whole respiratory system keeping the same level of details. The subject is thus to improve multiscale strategies to model the airflow in respiratory tracts by designing efficient algorithms adapted to the model (in particular we propose to test a POD strategy).
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Project RTPM: Simulation of reactive transport in porous media.
Chemical phenomena play an important role in several situations in porous media simulations as the reactivity of chemical elements has a direct influence on their time of residence in the subsurface. Properly simulating the evolution of chemical species in a porous medium requires an integrated model, including both chemical and transport phenomena. In these simulations, one aims at describing how a set of chemical species interact between themselves and with the host rock, while being subject to transport and diffusion by the underlying flow.
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Project SPRAYNERGY: Fluid-Particle flows, a thin spray model with energy exchange.
We investigate the evolution of a dispersed phase (droplets, particles...) interacting with a dense phase (ambient fluid). The study aims at extending the numerical methods and simulations in the case when the fluid is described by the full system of Euler equations, including heat exchange.
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Project VESICLE: Numerical simulation of vesicles.
In this work, we plan to simulate vesicles under confined and extended flows using several numerical methods and improving existent codes. These results would be very interesting for rheological studies. The final goal is to interpret the experimental data and to guide new experimental developments such as microfluidics devices.
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