Welcome

Hi and welcome to my professional page. I am an assistant professor at the Institut National des Sciences Appliquées (INSA) de Rennes in the Civil and Urban Engineering department. My scientific research activities are carried out at the Laboratory of Civil and Mechanical Engineering (LGCGM) in Rennes.

This website is under construction.

Related websites

  • INSA Rennes

    INSA Rennes is a member of the INSA Group, the leading French network of state graduate and post graduate engineering schools. INSA Rennes stands out for two poles of excellence: Information & Communication Sciences & Technologies and Materials, Structures & Mechanics.

  • Bretagne Loire University

    The Bretagne Loire University federates 7 universities, 15 shools and 5 research organizations in Brittany and Pays de la Loire.

Some of my research activities

Below are some of the research topics I am working on or have had the opportunity to work on in the past. Feel free to visit these pages and contact me for more information.

  • Internal erosion in soils

    Hydraulic structures ensure the protection of persons and goods, the production of electricity and water storage. The failure of such structures can lead to significant human and material disasters. This can be caused by several factors, but the predominant one is the internal erosion phenomenon. ... more

  • Flows of particles through a porous medium

    The handling of granular matter is often a source of many problems. One of them is size segregation, which implies a no homogeneous distribution of the various species of grains, this makes very difficult the realization of homogeneous mixtures. ... more

  • Wave breaking and run-up

    My research activities are related to the transformation of water waves near the shores. My work is aimed at studying the run-up of these waves when breaking can occurs. ... more

Two-scale analysis of the permeability of 3D periodic granular and fibrous media

Two-scale analysis of the permeability of 3D periodic granular and fibrous media

In this paper, a numerical study of slow flow through a filter viewed as a porous medium made of arrays of cubic solid particles or solid fibers of square cross section is considered. A double-scale asymptotic method is used to determine a system of equations that are then solved numerically to calculate the permeability. Simulations are made at the REV scale, and macroscopic properties are deduced. At the microscale, three arrangements (simple cubic, body-centered cubic and face-centered cubic) are analyzed. A parametric study is carried out, for both granular and fibrous cases, showing the porosity evolution with the size ratio between the solid particles and the periodic cell. At the macroscopic scale, the interest of this analysis is to compute the Darcy’s permeability of such arrays as a function of the porosity and the packing characteristics. Results are given over the full porosity range for SC, BCC and FCC arrays. On the other side, the microscopic analysis shows the influence of particle or fiber arrangement and size on the fluid velocity and the pressure field inside the porous structure.