About Me

Hello. I am Lucien and welcome to my website. I have finished my Ph.D. thesis at the end of 2019, and I continue my research as a postdoctoral researcher in the LMFA laboratory for the upcoming year. My research interests include fluid dynamics, lattice Boltzmann method, multi-species diffusion, kinetic theory, and physical oceanography.

Besides my research, I can’t decide between the seaside and the mountainside enjoying windsurfing, sailing, as well as hiking, and mountain biking.

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  • Fluid mechanics
  • Lattice Boltzmann method
  • Multi-species diffusion
  • Kinetic theory
  • Physical oceanography


  • PhD. student in Fluid mechanics, 2016-2019

    Consevatoire National des Arts et Métiers / DynFluid laboratory

  • MSc. student in Numerical mechanics (dual master's degree), 2015-2016

    Université Côte d'Azur

  • MSc. student in Fluid mechanics and Marine engineering, 2013-2016

    SeaTech school of engineering


Multi-component flows

In nature, chemical compounds commonly mix each other. One of the elemental material in fluid mechanics, air, is predominantly composed …

Viscous Fingering Instability

Viscous fingering is an ubiquitous instability that occurs when a less viscous fluid displaces a more viscous fluid in a porous medium. …

Recent & Upcoming Talks

See all talks.

Lattice Boltzmann model for miscible mixtures: application to the viscous fingering instability

In the first part of the presentation, we introduce a lattice Boltzmann model for miscible gases. In this model, the standard lattice …

Simulation of Viscous Fingering Instability by the Lattice Boltzmann Method

The viscous fingering instability is successfully simulated within a lattice Boltzmann framework. Each species of the mixture is …

Lattice Boltzmann method for the simulation of miscible gases

In general, mass transport and diffusion process involve complex geometries and complicated non-linear interactions between components. …

Lattice Boltzmann simulation of a multicomponent viscous fingering instability at high Schmidt number

The simulation of the multicomponent viscous fingering instability in the case of miscible fluids at high Schmidt number is …



  • Practicals on numerical optimization
    • 72h, master level, part of computer science and mathematics lessons.
    • Introduction to numerical optimization with Python: conjugate gradient, Newton and quasi-Newton methods, Lagrange-Newton for constrained optimization, and similated annealing for global optimization.


  • contact@lvienne.com
  • Laboratoire de Mécanique des Fluides et d'Acoustique, école centrale Lyon, 36 avenue Guy Collongue, Ecully cedex, 69134, France