A5079307444- Fluid Dynamics and Turbulent Flows
- Quantum chaos and dynamical systems
- Rheology and Fluid Dynamics Studies
- Fluid Dynamics and Thin Films
- Nanofluid Flow and Heat Transfer
- Solidification and crystal growth phenomena
- Lattice Boltzmann Simulation Studies
- Geological and Geochemical Analysis
- Theoretical and Computational Physics
- Phase Change Materials Research
- Nonlinear Dynamics and Pattern Formation
- Fluid Dynamics and Heat Transfer
- Chaos control and synchronization
- Fluid Dynamics and Vibration Analysis
- High-pressure geophysics and materials
- Heat Transfer and Optimization
- Pickering emulsions and particle stabilization
- Algal biology and biofuel production
- Solar Thermal and Photovoltaic Systems
- Landslides and related hazards
- Fluid Dynamics Simulations and Interactions
- earthquake and tectonic studies
- Plasma and Flow Control in Aerodynamics
- Polymer composites and self-healing
- Electric Motor Design and Analysis
Université de Pau et des Pays de l'Adour
2013-2024
Laboratoire des Sciences de l’Information et de la Communication
2024
Centre National de la Recherche Scientifique
1991-2023
Virginia Tech
2017
Nantes Université
1991-2001
Laboratoire de Thermique et Energie de Nantes
1991-1993
This work reviews the present position of and surveys future perspectives in physics chaotic advection: field that emerged three decades ago at intersection fluid mechanics nonlinear dynamics, which encompasses a range applications with length scales ranging from micrometers to hundreds kilometers, including systems as diverse mixing thermal processing viscous fluids, microfluidics, biological flows, oceanographic atmospheric flows.
Abstract Water plays a key role in magma genesis, differentiation, ascent and, finally, eruption. Despite the recognized crucial function of water, there are still several issues that continue to blur our view about its magmatic systems. What timescales H 2 O accumulation crystallizing magmas? rates water-rich residual melts leading explosive eruptions? Here, we track timescale water melt resulting from crystallization hydrous CO -bearing mass stored at mid- deep-crustal levels...
Abstract We numerically define the thermochemical evolution of a subduction‐related crystal‐bearing magmatic mass at mid crustal levels (0.7 GPa, 20–25 km). Two main dynamic mechanisms are considered: (1) pure buoyancy‐driven system where convective flow is induced by density changes during magma cooling; (2) governed chaotic advection. The non‐Newtonian rheology natural magmas taken into account linking Herschel‐Bulkley formulation with results fractional crystallization experiments same...
The idea of combining large vortical structures in the flow with dynamical behavior open systems to enhance heat transfer and mixing has led design construction an experimental apparatus study order breaking such systems. consists a succession curved channels which curvature plane rotates 90° between each two adjacent elements. In this paper, basic concepts are described detail. Some preliminary results also presented.
Abstract This work shows the formation of a high internal phase ratio oil‐in‐water (O/W) emulsion using new type two‐rod batch mixer. The mixture components have sharply different viscosities [1/3400 for water‐in‐oil (W/O)], similar densities (1/0.974 W/O), and an O/W 91% (wt/wt). simple design this mixer leads to low‐energy process (10 6 < energy density [J m −3 ] 10 7 ), characterized by low rotational speed laminar flow. droplet size distribution during emulsification was investigated...
The formation of heavy crude oil in water (O/W) emulsion by a low energy laminar controlled flow has been investigated. was prepared an eccentric cylinder mixer. Its geometry allows the existence chaotic flows that are able to mix well highly viscous fluids. This new mixer design is used produce high internal phase ratio emulsions for three oils: castor and two oils different initial viscosity (Zuata Athabasca oils). influence stirring conditions, geometrical parameters, volume fraction on...
This paper describes a process based on the ultrasound-assisted polymerization of water-soluble monomer at high concentration, which is known as gel process. Polymerization triggered by decomposition initiating species. highly exothermic reaction can sustain localized front that propagates throughout an unstirred medium, in frontal polymerization. Evidence for controlled nature thermal propagation alongside presented online 2D-infrared (IR) thermography monitoring. In addition, effects molar...
In this paper, a numerical study of chaotic mixing process that involves highly viscous fluid is presented. The investigated mixer composed two circular rods maintained vertically inside cylindrical tank. tank and are heated can rotate around their revolution axes. Chaotic flows obtained by imposing temporal modulation the rotational velocity. Unsteady equations for conservation momentum energy solved using pressure-based code. This code has finite volume formulation applied to unstructured...