A5072415719- Fluid Dynamics and Turbulent Flows
- Lattice Boltzmann Simulation Studies
- Fluid Dynamics and Thin Films
- Nanofluid Flow and Heat Transfer
- Advanced Numerical Methods in Computational Mathematics
- Fluid Dynamics and Heat Transfer
- Computational Fluid Dynamics and Aerodynamics
- Gas Dynamics and Kinetic Theory
- Heat Transfer and Optimization
- Solidification and crystal growth phenomena
- Heat Transfer and Boiling Studies
- Computer Graphics and Visualization Techniques
- Heat Transfer Mechanisms
- Heat and Mass Transfer in Porous Media
- Rheology and Fluid Dynamics Studies
- Advanced Mathematical Modeling in Engineering
- Advanced Numerical Analysis Techniques
- Nanopore and Nanochannel Transport Studies
- Plasma and Flow Control in Aerodynamics
- Differential Equations and Numerical Methods
- Advanced Thermodynamics and Statistical Mechanics
- Surface Modification and Superhydrophobicity
- Numerical methods for differential equations
- Fluid Dynamics and Vibration Analysis
- Methane Hydrates and Related Phenomena
Laboratoire Modélisation et Simulation Multi-Echelle
2013-2024
Université Gustave Eiffel
2012-2023
Centre National de la Recherche Scientifique
1999-2023
Université Paris-Est Créteil
2010-2023
Paris-Est Sup
2011-2017
Université Paris Cité
2008-2014
Laboratoire d'Informatique pour la Mécanique et les Sciences de l'Ingénieur
1999-2012
Heat Transfer Research (United States)
2004
Laboratoire Ville Mobilité Transport
2003
Université Paris-Sud
1998-1999
Solutal driven flow is studied for a binary solution submitted to solvent evaporation at the upper free surface. Evaporation induces an increase in solute concentration close surface and solutal gradients may induce convective by buoyancy and/or tension. This problem numerically, using several assumptions deduced from previous experiments on polymer solutions. The stability of system investigated as function Rayleigh Marangoni numbers, evaporative flux Schmidt number. sensitivity thresholds...
ABSTRACT This article presents numerical results using a new finite-volume scheme on unstructured grids for the incompressible Navier-Stokes equations. The discrete unknowns are components of velocity, pressure, and temperature, colocated at centers control volumes. is stabilized an original method leading to local redistributions fluid mass, which simultaneously yields kinetic energy convergence scheme. Different comparisons with literature (2-D 3-D lid-driven cavity, backward-facing step,...
In order to increase the accuracy and stability of a scheme dedicated approximation diffusion operators on any type grids, we propose method which locally reduces curvature discrete solution where loss monotony is observed. The shown fulfill variational formulation, thanks use Lagrange multipliers. We can then show its convergence continuous problem, an error estimate derived. A numerical method, based Uzawa's algorithm, provide accurate stable approximate solutions various problems....
Linear stability analyses for two-dimensional natural convection in horizontal air-filled annuli are performed three-dimensional perturbations and radius ratios the range 1.2⩽R⩽3. Flow transitions from moderate to large-gap annuli, which have not been reported before, thoroughly investigated. As a result, diagrams obtained finite infinite length annuli. The leading disturbances threshold values found agree well with experimental data numerical solutions. Three-dimensional simulations were...
The axisymmetric steady-states solutions of buoyant-capillary flows in a cylindrical liquid bridge are calculated by means pseudo-spectral method. free surface is undeformable and laterally heated. working fluid metal, with Prandtl number value Pr=0.01. Particular care was taken to preserve the physical regularity our model, writing appropriate flux boundary conditions. location nature bifurcations undergone investigated space dimensionless numbers (Marangoni, Ma∈[0,600]; Rayleigh,...
Abstract We describe here a collocated finite volume scheme that was recently developed for the numerical simulation of incompressible Navier–Stokes equations on unstructured meshes, in two or three space dimensions. recall its convergence case linear Stokes equations, and we prove theorem under Boussinesq hypothesis. then present several studies. A comparison between cluster‐type stabilization technique more classical Brezzi–Pitkäranta method is performed, properties are presented both...
In the usual models of thermocapillary flows, a vorticity singularity occurs at contact free surface–solid boundaries. The steady axisymmetric hydrodynamics side-heated liquid bridge molten metal is addressed here for its sensitivity to size δ length scale explicitly introduced regularize problem. By linear stability analysis various stable states are predicted: already known which reflection-symmetric about mid-plane, but also others do not possess this property. thresholds in Ma associated...