• Aucun résultat trouvé

Haut PDF Influence d'une phase dispersée sur l'écoulement de Taylor-Couette

Haut PDF Influence d'une phase dispersée sur l'écoulement de Taylor-Couette ont été compilés par 123dok FR

Influence d'une phase dispersée sur l'écoulement de Taylor-Couette

Influence d'une phase dispersée sur l'écoulement de Taylor-Couette

... Les 15 èmes Journées Scientifiques de Marcoule 9 – 10 juin 2015 Document propriété du CEA – Reproduction et diffusion externes au CEA soumises à l’autorisation de l’émetteur INFLUENCE D’UNE PHASE DISPERSEE ... Voir le document complet

3

Influence d'une phase dispersée sur le mélange dans l'écoulement de Taylor-Couette

Influence d'une phase dispersée sur le mélange dans l'écoulement de Taylor-Couette

... d’une phase disper- sée sur le mélange en écoulement de ...colonne Couette et doit donc être, sinon minimisé, du moins quantifié dans les colonnes d’ex- ...de Taylor-Couette, à savoir ... Voir le document complet

184

Étude expérimentale et numérique du mélange et de la dispersion axiale dans une colonne à effet Taylor-Couette

Étude expérimentale et numérique du mélange et de la dispersion axiale dans une colonne à effet Taylor-Couette

... 1 4 CHAPITRE 1. INTRODUCTION - CONTEXTE INDUSTRIEL 1.1 Le procédé PUREX Le procédé hydro-métallurgique « PUREX » (acronyme de Plutonium Uranium Refining by EXtraction), mis au point dès 1945 aux États-Unis, se base sur ... Voir le document complet

204

Numerical simulation of bubble dispersion in turbulent Taylor-Couette flow

Numerical simulation of bubble dispersion in turbulent Taylor-Couette flow

... of Taylor Vortices and (right) on their radial ...the influence of the Reynolds number (through H variation), the bubble size by changing R b /R 2 , and the role of buoyancy effects by considering two ... Voir le document complet

31

Effect of bubble’s arrangement on the viscous torque in bubbly Taylor-Couette flow

Effect of bubble’s arrangement on the viscous torque in bubbly Taylor-Couette flow

... The objective of this part is to study the e ffect of buoyancy (through varying the viscosity of the mixture and the bubble size), as well as the e ffect of the Reynolds number on the bubble arrangement in the gap. ... Voir le document complet

35

Preferential accumulation of bubbles in Couette-Taylor flow patterns

Preferential accumulation of bubbles in Couette-Taylor flow patterns

... not influence the background flow 共one-way coupling ...steady Couette flow to Taylor toroidal vortices and eventually a wavy vortex ...of Taylor vortices or at particular locations within the ... Voir le document complet

12

Quantitative visualization of swirl and cloud bubbles in Taylor–Couette flow

Quantitative visualization of swirl and cloud bubbles in Taylor–Couette flow

... the influence of the drag reduction, and thus, knowing the time evolution of bubble distributions and velocity of accumulated bubbles is a key step towards understanding bubbly drag reduction ...gas phase ... Voir le document complet

11

Numerical simulation of bubble dispersion in turbulent Taylor-Couette flow

Numerical simulation of bubble dispersion in turbulent Taylor-Couette flow

... bubbly phase. The influence of the outflow jet is less pronounced as shown in ...that Taylor vortices have less influence and that bubble migration in the vertical direction is dominated by ... Voir le document complet

32

Modélisation eulérienne de la phase dispersée dans les moteurs à propergol solide, avec prise en compte de la pression particulaire

Modélisation eulérienne de la phase dispersée dans les moteurs à propergol solide, avec prise en compte de la pression particulaire

... masse avec la phase gazeuse sont donc nuls et le diamètre des particules reste constant. Cette modélisation, plus simple que celle de particules évaporantes, permet de simuler des écoulements diphasiques où les ... Voir le document complet

260

Evolution des propriétés morphologiques de flocs de latex en réacteur de Taylor-Couette

Evolution des propriétés morphologiques de flocs de latex en réacteur de Taylor-Couette

... agrégats Les résultats obtenus dans ce chapitre sont issus d’expériences de floculation en réacteur de Taylor-Couette en hydrodynamique séquencée. Les conditions de l’écoulement demeurent inchangées. Les ... Voir le document complet

280

Experimental investigation of mixing efficiency in particle laden Taylor-Couette flows

Experimental investigation of mixing efficiency in particle laden Taylor-Couette flows

... 4 Conclusion We have carried out an experimental characterization of tracer mixing in the Taylor-Couette flow configura- tion. More specifically, we have measured the enhance- ment of mixing efficiency by ... Voir le document complet

14

Experimental study of bubble-drag interaction in a Taylor-Couette flow

Experimental study of bubble-drag interaction in a Taylor-Couette flow

... direct influence on the liquid flow ...the Taylor vortices can lead to a decrease of the velocities of the Taylor vortices, leading to a contribution of the coherent motion that is reduced in favour ... Voir le document complet

12

Quantitative visualization of swirl and cloud bubbles in Taylor–Couette flow

Quantitative visualization of swirl and cloud bubbles in Taylor–Couette flow

... gas phase in the vortex core by adopting intrusive dual fiber-optical probes, but this technique is not applicable in the near wall region of the outflow, where bubbles are ... Voir le document complet

10

Experimental study of bubble-drag interaction in a Taylor-Couette flow

Experimental study of bubble-drag interaction in a Taylor-Couette flow

... direct influence on the liquid flow ...the Taylor vortices can lead to a decrease of the velocities of the Taylor vortices, leading to a contribution of the coherent motion that is reduced in favour ... Voir le document complet

11

Experimental study of bubble-drag interaction in a Taylor-Couette flow

Experimental study of bubble-drag interaction in a Taylor-Couette flow

... Figure 4 and 5 display the viscous torque measured in two-phase flow for the largest and smallest bubbles respectively. To test reproducibility of injection effect on the viscous drag, different dataset were ... Voir le document complet

11

Experimental investigation of mixing efficiency in particle‑laden Taylor–Couette flows

Experimental investigation of mixing efficiency in particle‑laden Taylor–Couette flows

... The Couette regime, which is the first regime that appears at low Reynolds, is laminar and steady (its velocity profile is provided in standard ...increases, Taylor Vortex Flow regime (TVF) ... Voir le document complet

14

Experimental study of enhanced mixing induced by particles in Taylor–Couette flows

Experimental study of enhanced mixing induced by particles in Taylor–Couette flows

... from the regions of high to low particle concentration. Because the spatial particle distribution is close to uni- form in our experiments, the mixing behavior can hardly be attributed to the gradient diffusion, proving ... Voir le document complet

10

Experimental study of enhanced mixing induced by particles in Taylor–Couette flows

Experimental study of enhanced mixing induced by particles in Taylor–Couette flows

... A new setup based on 2-way PLIF measurements, coupled with PIV, was then proposed for the two-phase experiments. Two fluorescent dyes are simultaneously monitored ( Bouche et al., 2013 ). The first one, Rhodamine ... Voir le document complet

11

Experimental investigation of mixing and axial dispersion in Taylor–Couette flow patterns

Experimental investigation of mixing and axial dispersion in Taylor–Couette flow patterns

... square grid (16  16) with sub-pixel intercorrelation. The uncertainty on the Reynolds number due to the variation in the inner cylinder speed, fluid viscosity, and other factors was at most 5 %. The uncertainty on the ... Voir le document complet

18

Analysis of the flow pattern modifications in a bubbly Couette-Taylor flow

Analysis of the flow pattern modifications in a bubbly Couette-Taylor flow

... Handle ID: . http://hdl.handle.net/10985/10301 To cite this version : Amine MEHEL, Céline GABILLET, Henda DJERIDI - Analysis of the flow pattern modifications in a bubbly Couette-Taylor flow - Physics of ... Voir le document complet

6

Show all 7773 documents...