Michel Bergmann 
  Chargé de Recherches
 
INRIA  centre Bordeaux Sud-Ouest
  Team MC2
  Phone : +33 (0)5 40 00 69 54
  Fax     : +33 (0)5 40 00 21 17
  Mailto: Michel.Bergmann at inria.fr 

 Institut de Mathématiques de Bordeaux

 
Mathématiques Appliquées de Bordeaux
  351 cours de la Libération
 
33405 TALENCE cedex



 







Research interests  [more details]


Mathematical modelling - Numerical Simulations - Optimization and control

  • Reduced Order Models
    Proper Orthogonal Decomposition (POD)
    Asymptotic methods

  • Improvement of reduced order modeling based on POD
    Optimal spectral viscosity, shift and residuals modes, residuals sampling, Greedy method, Krylov methods, non linear Galerkin methods, hybrid methods

  • Numerical Simulations
    Finite Element Method (Delaunay Meshes)
    Finite Volume, Multigrid and Vortex Methods (Cartesian Meshes with penalization and Level Set
    )

  • Active flow control and drag reduction
    Dual adjoint methods / optimal control & robust control LQR 
    DNS & POD + trust region (TRPOD)

  • Modelling and control of reaction-diffusion equations
    Model reduction: asymptotic methods (invariance)
    Artificial neural networks, genetic algorithms, inverse methods

          • Modelling, simulation and control of bio inspired locomotion
                      Cartesian grids, penalization method and level set technics
                      Swimmers (Fishes, Jellyfishes, ...)


Self-propelled swimmers
Simualtions with Cartesian Meshes + Penalization + Level Set



3D Fish like swimming.


             3D jelly fish like swimming                                 3D Ray swimming   

another 3D Ray Swimming.    


aaquarium.



Wind turbine.






Drag minimization of the cylinder wake in laminar regime   

Natural uncontrolled flow. Cd=1.40 [video 7.2Mo]


Flow generated with optimal parameters found by TRPOD method. Cd=0.99 [video 2.9Mo] 





Workshop on POD [more details]


Thanks to all speakers, some slides presentations can be downloaded in pdf format here.

Others


You can find here some easy ways to use LaTeX.

Photos (restricted access)


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