Research
interests
[more
details]
Mathematical modelling - Reduced
Order Models - Numerical Simulations -
Optimization and control - Stability
Analysis...
... Toward multiphysics applications
(Windtubine, UAVs, Boat Propellers, Fluid-Structures Interaction, Bioinspiration)
... Toward multiphysics applications
(Windtubine, UAVs, Boat Propellers, Fluid-Structures Interaction, Bioinspiration)
Mathematical modelling
- Multiphysics models
Flow analysis and control
[BB2022] [IJNMF2020] [PRE2018] [JCP2018b] [JCP2018a] [JCP2016] [B&B2014] [CICP14] [JCP11] [JESA11] [IJNMF10] [JCP09] [JCP08] [MI07] [NNFM07] [POF06a] [POF06b] [POF05]
- Reaction-diffusion equations
[SISC2022] [CNME08]
Reduced Order Models (ROM)
- Proper Orthogonal Decomposition (POD)
Analysis and control
[JCP21b] [JESA11] [IJNMF10] [JCP09] [JCP08] [MI07] [NNFM07] [POF05]
Optimal Eddy viscosity, non-equilibrium modes, SUPG, VMS, Optimal Sampling
[JESA11] [JCP09] [JCP08] [POF05]
- Asymptotic methods
[CNME08]
Numerical Simulations
- Finite Element Method
2D, Delaunay Triangulation
[POF05] [POF06a] [POF06b] - Finite Volume, Multigrid Method
2D,Cartesian Meshes with penalization
[JCP09]
Quadtrees/Octrees
[JCP22b]
- Finite Differences with projection
methods
3D, 2nd order, Cartesian Grids, Immersed Boundary, Level Set
Development of the code NaSCar (see movies)
[IJNMF2020] [PRE2018] [JCP2018b] [JCP2018a] [JCP2016][JCP2016][JCP2016] [B&B2014] [CICP13][JCP11] - ADER Method
Overset grids
[JCP2022a] [SISC2022]
Optimization and Control
- Dual adjoint methods / optimal control
& robust control LQR
Drag reduction
[POF05] [NNFM07] [MI07] [JCP08] - DNS & POD + trust region (TRPOD)
Drag Reduction
[JCP08] [NNFM07] - Artificial neural networks, genetic
algorithms, inverse methods
Control and estimation of the ignition point of forest fire
[CNME08]
Deep Learning
[IJHFF23]
Stability Analysis
- Reduced Order Models
[JESA11] - Sedimentation of bodies
Self-Propelled Swimmers (fish,jellyfish,ray,knifefish)
Control of Self-propelled swimmers (maneuvers, velocity regulation)
Fluid Structures Interactions (elastic structures)
Windturbine (NREL 10-m testing in NASA Ames wind Tunnel)
Boat propeller (laminar and turbulent)
Boat (interface air/water/boat, triple line)
Sedimentation of bodies (Lubrication/collision models in 2D and 3D)
Instabilities (Rayleigh-Taylor, Rayleigh-Plateau)
Self Propelled Swimmers
![](Videos/chinchard.gif)
3D fish like swimming of a real mackerel fish
(obtained from actual pictures with optimal transportation)
![](Videos/ray_1.gif)
Knifefish swimming
![](Videos/aqua.gif)
Aquiarium.
![](Videos/dolphin.gif)
Dolphin jump
![](Videos/SNAKE2.gif)
Snake swimming.
Control of fish like swimming
![](Videos/fish_turb.gif)
Velocity regulation by proportional control on the tail amplitude and frequency.
![](Videos/3Dturn.gif)
Fish manoeuver
Proportional control with mean curvature adaptation.
![](Videos/enclos1.gif)
![](Videos/enclos2.gif)
![](Videos/FISH_GROUP_porous.gif)
Numerical simulations of several fishes with collision in a fixed domain or in a porous enclosure.
Fluid Structure Interactions
![](Videos/serpent.gif)
Elastic Body
The water snake can extract wave Energy.
Strong implicit coupling.
![](Videos/iswec.gif)
Inertial Sea Wave Energy Converter.
The wave energy is converted with a gyrospospe animated with the body motion.
![](Videos/flut.gif)
Oscillation of an elastic structure under gravity and flow induced vibrations (low Reynolds number).
![](Videos/elast_new.gif)
Oscillation of an (eulerian) elastic membrane and flow creation
![](Videos/pump3.gif)
Pump based on an elastic membrane.
![](Videos/waves.gif)
Shock in an incompressible elastic material
Windturbines
![](Videos/eol.gif)
Entire windturbine with blades and mast
![](Videos/eol_tip.gif)
Accurate simulation of the blades.
Boat propellers
![](Videos/hel.gif)
Laminar.
![](Videos/hel2.gif)
Tubulent.
Boat
![](Videos/bateau_new.gif)
Sedimentation of bodies
Some instabilities
![](Videos/chinchard.gif)
3D fish like swimming of a real mackerel fish
(obtained from actual pictures with optimal transportation)
![]() Jellyfish like swimming |
![]() Ray fish like swimming |
![](Videos/ray_1.gif)
Knifefish swimming
![](Videos/aqua.gif)
Aquiarium.
![](Videos/dolphin.gif)
Dolphin jump
![](Videos/SNAKE2.gif)
Snake swimming.
Control of fish like swimming
![](Videos/fish_turb.gif)
Velocity regulation by proportional control on the tail amplitude and frequency.
![](Videos/3Dturn.gif)
Fish manoeuver
Proportional control with mean curvature adaptation.
![](Videos/enclos1.gif)
![](Videos/enclos2.gif)
![](Videos/FISH_GROUP_porous.gif)
Numerical simulations of several fishes with collision in a fixed domain or in a porous enclosure.
Fluid Structure Interactions
![](Videos/serpent.gif)
Elastic Body
The water snake can extract wave Energy.
Strong implicit coupling.
![](Videos/iswec.gif)
Inertial Sea Wave Energy Converter.
The wave energy is converted with a gyrospospe animated with the body motion.
![](Videos/flut.gif)
Oscillation of an elastic structure under gravity and flow induced vibrations (low Reynolds number).
![](Videos/elast_new.gif)
Oscillation of an (eulerian) elastic membrane and flow creation
![](Videos/pump3.gif)
Pump based on an elastic membrane.
![](Videos/waves.gif)
Shock in an incompressible elastic material
Windturbines
![](Videos/eol.gif)
Entire windturbine with blades and mast
![](Videos/eol_tip.gif)
Accurate simulation of the blades.
Boat propellers
![](Videos/hel.gif)
Laminar.
![](Videos/hel2.gif)
Tubulent.
Boat
![](Videos/bateau_new.gif)
Sedimentation of bodies
![]() Rebound of a sphere on a wall. (lubrification + repulsion forces) |
![]() Sedimentation of several particules (spheres). (lubrification + repulsion forces and torques) |
Some instabilities
![]() Rayleigh-Taylor Densiity ratio is 3. |
![]() Rayleigh-Plateau Curvature limitation (mesh size) to allow 2D instability. |