Particle image velocimetry in a foam-like porous structure using refractive index matching: a method to characterize the hydrodynamic performance of porous structures

被引：27

作者：

Butscher, Denis ^{[1
]}

Hutter, Cedric ^{[1
]}

Kuhn, Simon ^{[2
]}

von Rohr, Philipp Rudolf ^{[1
]}

机构：

[1] ETH, Inst Proc Engn, CH-8092 Zurich, Switzerland

[2] MIT, Cambridge, MA 02139 USA

来源：

EXPERIMENTS IN FLUIDS | 2012年 / 53卷 / 04期

关键词：

PORE-SCALE FLOW; TRACKING VELOCIMETRY; METAL FOAMS; MEDIA; TRANSPORT; DISPERSION; REACTOR;

D O I：

10.1007/s00348-012-1346-9

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

We present a method to measure two-dimensional velocity fields inside an artificial foam-like porous structure using particle image velocimetry and a refractive index matching technique to avoid optical distortion. The porous structure is manufactured by stereolithography with the epoxy resin WaterShed(A (R)) XC 11122 as solid material, and anisole is used as refractive index-matched fluid. It was found that the direction of build-up of the stereolithographic structure plays an important role for the quality of the recorded images. The velocity fields measured in this study and the turbulent statistics derived thereof allow to characterize the hydrodynamic performance of the artificial foam-like structure and clarify the mechanisms of mixing. Results from this study compare well to results from a large eddy simulation reported by Hutter et al. (Chem Eng Sci 66:519-529, 2011b) and hence reinforce these simulations.

引用

页码：1123 / 1132

页数：10

共 18 条

[1] Density, viscosity, refractive index, and speed of sound for binary mixtures of anisole with 2-chloroethanol, 1,4-dioxane, tetrachloroethylene, tetrachloroethane, DMF, DMSO, and diethyl oxalate at (298.15, 303.15, and 308.15) K [J].