WorldCat Identities

Aguilar Corona, Alicia (1977-....).

Overview
Works: 2 works in 3 publications in 1 language and 3 library holdings
Roles: Author
Publication Timeline
.
Most widely held works by Alicia Aguilar Corona
Agitation des particules dans un lit fluidisé liquide : étude expérimentale by Alicia Aguilar Corona( Book )

2 editions published in 2008 in French and held by 2 WorldCat member libraries worldwide

Besides its interest as an industrial application in various processes, liquid fluidization builds up an interesting test case regarding the validation of two-phase flow modelling. The lack of reliable and detailed experimental data about particle agitation in this type of flow is one important motivation to this study. In this work, the random motion of mono-dispersed particles in a liquid fluidized bed has been measured and processed from video recordings, using a refractive index matching method. 3-D trajectories of coloured particles have been collected in a wide range of solid fraction, and statistical quantities have been derived in the range of high particle Reynolds number (O(10)<Rep<O(103) and intermediate Stokes number (O(1)< St<O(10)). The evolution of the particle velocity variance as a function of solid fraction has been modelled and interpreted in the frame of kinetic theory of granular flows (KTGF). The fluctuating kinetic energy of the continuous phase measured by PIV, is significantly larger than that of the dispersed phase and varies almost linearly as a function of the slip velocity. The existence of a diffusive motion of the particles has been demonstrated and the self-diffusion coefficient has been identified using two distinct methods, the velocity autocorrelation function and the variance of the particle displacement. The comparison of characteristic time scales of the particles and the fluid at small and large scales allowed the formulation of scaling laws for this quantity. Finally, the collisions frequency and particle-wall rebound have been measured and analyzed in the frame of existing theories
Agitation des particules dans un lit fluidisé liquide étude expérimentale by Alicia Aguilar Corona( )

1 edition published in 2008 in French and held by 1 WorldCat member library worldwide

Besides its interest as an industrial application in various processes, liquid fluidization builds up an interesting test case regarding the validation of two-phase flow modelling. The lack of reliable and detailed experimental data about particle agitation in this type of flow is one important motivation to this study. In this work, the random motion of mono-dispersed particles in a liquid fluidized bed has been measured and processed from video recordings, using a refractive index matching method. 3-D trajectories of coloured particles have been collected in a wide range of solid fraction, and statistical quantities have been derived in the range of high particle Reynolds number (O(10)<Rep<O(103) and intermediate Stokes number (O(1)< St<O(10)). The evolution of the particle velocity variance as a function of solid fraction has been modelled and interpreted in the frame of kinetic theory of granular flows (KTGF). The fluctuating kinetic energy of the continuous phase measured by PIV, is significantly larger than that of the dispersed phase and varies almost linearly as a function of the slip velocity. The existence of a diffusive motion of the particles has been demonstrated and the self-diffusion coefficient has been identified using two distinct methods, the velocity autocorrelation function and the variance of the particle displacement. The comparison of characteristic time scales of the particles and the fluid at small and large scales allowed the formulation of scaling laws for this quantity. Finally, the collisions frequency and particle-wall rebound have been measured and analyzed in the frame of existing theories
 
Audience Level
0
Audience Level
1
  General Special  
Audience level: 0.93 (from 0.92 for Agitation ... to 0.94 for Agitation ...)

WorldCat IdentitiesRelated Identities
Alternative Names
Corona, Alicia Aguilar

Languages
French (3)