Experimental investigation of mixing efficiency in particle laden Taylor-Couette flows - Archive ouverte HAL Access content directly
Journal Articles Experiments in Fluids Year : 2019

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

(1) , (1) , (2) , (2) , (2) , (1)
1
2

Abstract

This paper reports on original experimental data of mixing in two-phase Taylor-Couette flows. Neutrally buoyant particles with increasing volume concentration enhance significantly mixing of a passive tracer injected within the gap between two concentric cylinders. Mixing efficiency is measured by planar laser induced fluorescence coupled to particle image velocime-try to detect the Taylor vortices. In order to achieve reliable experimental data, index matching of both phases is used together with a second PLIF channel. From this second PLIF measurements, dynamic masks of the particle positions in the laser sheet are determined and used to calculate accurately the segregation index of the tracer concentration. Experimental techniques have been thoroughly validated through calibration and ro-bustness tests. Three particle sizes were considered, in two different flow regimes to emphasize their specific roles on the mixing dynamics.
Fichier principal
Vignette du fichier
201800003744.pdf (8.09 Mo) Télécharger le fichier
Origin : Files produced by the author(s)
Loading...

Dates and versions

cea-02510031 , version 1 (17-03-2020)

Identifiers

Cite

Zeinab Rida, Sébastien Cazin, Fabrice Lamadie, Diane Dherbecourt, Sophie Charton, et al.. Experimental investigation of mixing efficiency in particle laden Taylor-Couette flows. Experiments in Fluids, 2019, 60, pp.61. ⟨10.1007/s00348-019-2710-9⟩. ⟨cea-02510031⟩
29 View
61 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More