Premium
Investigation of Transport Phenomena Inside a Microcapsule
Author(s) -
GOUBERGRITS LEONID,
AFFELD KLAUS,
DEBAENE PERRINE,
KERTZSCHER ULRICH
Publication year - 2002
Publication title -
annals of the new york academy of sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.712
H-Index - 248
eISSN - 1749-6632
pISSN - 0077-8923
DOI - 10.1111/j.1749-6632.2002.tb04573.x
Subject(s) - mass transfer , particle image velocimetry , péclet number , materials science , saturation (graph theory) , convection , mechanics , particle (ecology) , acceleration , nanotechnology , physics , classical mechanics , turbulence , geology , oceanography , mathematics , combinatorics
A bstract : Mass transfer within a microcapsule is enhanced by convection, achieved by introducing a movable body inside the microcapsule. This body has a different density from the fluid within the microcapsule and can be moved relative to the microcapsule by application of an external force, such as a magnetic field or acceleration/deceleration. The effect of the transport improvement was investigated as a function of the Peclet number ( Pe ) by using computational fluid dynamics and particle image velocimetry. The results show that the period to achieve 80% saturation in the microcapsule was reduced by 60% with a movable body with half of the diameter of the microcapsule and Pe = 600 , compared to the mass transport in the microcapsule with a non‐movable body.