A5055137512- Fluid Dynamics and Vibration Analysis
- Model Reduction and Neural Networks
- Fluid Dynamics and Turbulent Flows
- Numerical methods for differential equations
- Vibration and Dynamic Analysis
- Hydraulic and Pneumatic Systems
- Dynamics and Control of Mechanical Systems
- Computational Fluid Dynamics and Aerodynamics
- Advanced Mathematical Modeling in Engineering
- Advanced Numerical Methods in Computational Mathematics
- Advanced Numerical Analysis Techniques
- Elasticity and Material Modeling
- Structural Analysis and Optimization
- Rheology and Fluid Dynamics Studies
- Wind and Air Flow Studies
- Particle Dynamics in Fluid Flows
- Numerical methods in engineering
- Composite Structure Analysis and Optimization
- Nonlinear Waves and Solitons
- Differential Equations and Numerical Methods
- Probabilistic and Robust Engineering Design
- Electromagnetic Simulation and Numerical Methods
- Fluid Dynamics Simulations and Interactions
- Fractional Differential Equations Solutions
- Modeling and Simulation Systems
Laboratoire des Sciences de l'Ingénieur pour l'Environnement
2013-2024
La Rochelle Université
2013-2024
Centre National de la Recherche Scientifique
1993-2024
École Centrale d'Électronique
2024
Roche (France)
2013
Université de Poitiers
1997-2000
Laboratoire de Mathématiques
1998
Institut Pprime
1997-1998
École Nationale Supérieure de Mécanique et d'Aérotechnique
1997-1998
An adaptation of the Inverse Distance Weighting (IDW) method to Grassmann manifold is carried out for interpolation parametric POD bases. Our approach does not depend on choice a reference point perform interpolation, moreover our results are more accurate than those obtained in [7]. In return, direct but iterative and its relevance depends weighting functions which inversely proportional distance parameter. More judicious choices such can be via kriging technics [23], this subject work progress.
This article presents the application of DKMQ24 shell element for twist thin-walled beams. passed patch tests membrane, bending and shear problems gave fine results plate analysis without locking. Thin-walled cantilever beams are analyzed using this element. gives good with open cross-section a very few number Moreover, comparison obtained Vlassov analytical solution enables to evaluate accuracy rigidity, Jd, which depends on an empirical coefficient in theory.
Abstract An extension of the well‐known Neville–Aitken's algorithm for interpolation on Grassmann manifold in framework parametric model order reduction is presented. Interpolation points are subspaces spanned by bases obtained Proper Orthogonal Decomposition available solutions associated with chosen parameter sampling. The performed recursively via geodesic barycenter two points. Three CFD applications presented: (i) Von Karman vortex shedding street, (ii) lid‐driven cavity inflow and...
This article reviews some integrators particularly suitable for the numerical resolution of differential equations on a large time interval. Symplectic are presented. Their stability exponentially is shown through examples. Next, Dirac constrained systems exposed. An application chaotic dynamics Lastly, having no exploitable geometric structure, Borel–Laplace integrator Numerical experiments Hamiltonian and non-Hamiltonian carried out, as well partial equation.
Abstract In this article, we present some investigations about the solving of transfer equations by reduced‐order models (ROM). We introduce a ROM, priori reduction (APR), and results obtained for 2D unsteady convection–diffusion equation 1D Burgers equation. The APR approach is then compared with Karhunen–Loève decomposition properties method are emphasized. show that computation time necessary these reduced, whereas accuracy same order magnitude, in comparison solution full model classical...
Abstract The phenomenon of jet attachment to a wall by Coanda effect is very important in many industrial applications (sound reduction, bad dispersion the air venlilated room …). In order control it, it necessary know its occurrence according various parameters flow. this article asymptotic numerical method (ANM) used study which occurs several flow configurations (sudden expansion with or without divergent and open cavity). ANM jast, efficient robust melhod 10 determine these stalionary...
Separated representations allow substituting the resolution of 3D models by a sequence three one-dimensional problems [1]. This route is especially suitable when are defined in hexahedral domains. When it not case, different possibilities exist. In former work [2], we explored immersing domain into domain, and then use kind penalty method to solve model whilst enforcing boundary conditions. present work, analyzing two alternative routes. The first one consists using an inverse technique...