Hi, I am a PIMS-CNRS Postdoctoral Fellow under the supervision of Prof. Anthony Wachs at the University of British Columbia in Vancouver, Canada. My research is deeply rooted in applied mathematics and High-Performance Computing, using highly-resolved numerical methods for numerical investigation of multi-phase flows. The scope of my research is diverse, encompassing various domains such as the deformation of blood cells, the dynamics of solid angular particles in inertial flow, and droplet interactions with compressible flow, such as shock waves.

Biological flows

I’m currently working on the development of a Front-Tracking solver for elastic membranes surrounded by viscous fluids, an example being Red Blood Cells immersed in blood plasma. We describe the deformable capsules using an unstructured lagrangian mesh and compute the internal strains and stresses of the membrane. These stresses are transferred to the fluid with the Immersed Boundary Method (IBM), i.e. by means of a regularized Dirac function. We implement our code on the open-source multiphase flow solver Basilisk.

The movie below depicts the dynamics of 200 elastic capsules in a simple shear flow.

Particle-laden flows

My second research project pertains to the development, improvement and use of high-fidelity Finite Volume fictitious domain methods (DLM/FD) on adaptive octree grid to solve the Navier-Stokes equation with additional (Dirichlet) boundary conditions on embedded interfaces. I apply this numerical method to flows laden with stationary or freely moving rigid particles. Parallel computations run on the supercomputers Cedar and Sockeye on up to 1024 cores. We have unearthed remarkable insights into the interactions between angular particles and fluids, shedding light on novel physical phenomena.

Freely settling of a tetrahedron

Below is a depiction showcasing the wake structures of a freely settling tetrahedron, illustrated across varying Galileo numbers.

Inertial flow past a fixed particle

The video below presents the progression of vortex shedding structures as the Reynolds number increases, illustrating the dynamics of an inertial flow past an angular particle.

Droplets interaction with shock waves

I started my passion for research during my graduate studies in the French Atomic Energy and Alternative Energies Commission (CEA Saclay, France). My Ph.D. project under the supervision of Prof. Abdellah Hadjadj was dedicated to the development of mathematical models to investigate the effects of water spray systems on premixed hydrogen-air combustion in large-scale industrial applications, such as accidental explosions in nuclear power plants or offshore platforms. These developed numerical models are implemented in the large-scale numerical simulation codes at CEA, one of the world’s most advanced nuclear engineering research centers.

This figure elucidates the mechanism of a 1D shock wave impinging on a domain laden with water spray droplets, consequently generating both reflected and transmitted shock waves.