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Modelling of sub-micron-sized particle deposition in a laminar wall jet - an investigation of the role of shielding

Göransson, Anders LU and Trägårdh, Christian LU (2002) In Colloids and Surfaces A: Physicochemical and Engineering Aspects 205(3). p.149-159
Abstract
The deposition of polystyrene latex particles (0.23 mum in radius) onto a glass surface, covered with indium-tin oxide, has been studied using a wall-jet cell. The particle deposition could be followed in a single experiment at several positions, exposed to a wide range of wall shear rates. A deposition model including a shielding function was applied in order to describe the process. Three shielding functions obtained from the literature, which assumed different shielded areas, were compared. The size of the excluded area was shown to be dependent on the wall shear rate: a higher shear rate resulted in a larger area being blocked by deposited particles, thus preventing non-deposited, free-flowing particles from reaching the surface. (C)... (More)
The deposition of polystyrene latex particles (0.23 mum in radius) onto a glass surface, covered with indium-tin oxide, has been studied using a wall-jet cell. The particle deposition could be followed in a single experiment at several positions, exposed to a wide range of wall shear rates. A deposition model including a shielding function was applied in order to describe the process. Three shielding functions obtained from the literature, which assumed different shielded areas, were compared. The size of the excluded area was shown to be dependent on the wall shear rate: a higher shear rate resulted in a larger area being blocked by deposited particles, thus preventing non-deposited, free-flowing particles from reaching the surface. (C) 2002 Elsevier Science B.V. All rights reserved. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
evanescent wave, particle deposition, wall-jet cell, surface blocking, shielding function
in
Colloids and Surfaces A: Physicochemical and Engineering Aspects
volume
205
issue
3
pages
149 - 159
publisher
Elsevier
external identifiers
  • wos:000176459900001
  • scopus:0037166719
ISSN
0927-7757
DOI
10.1016/S0927-7757(02)00008-0
language
English
LU publication?
yes
id
7ff232d9-e6ea-4a57-b70c-edae4609aec9 (old id 334573)
date added to LUP
2007-08-20 16:51:45
date last changed
2017-01-01 06:50:52
@article{7ff232d9-e6ea-4a57-b70c-edae4609aec9,
  abstract     = {The deposition of polystyrene latex particles (0.23 mum in radius) onto a glass surface, covered with indium-tin oxide, has been studied using a wall-jet cell. The particle deposition could be followed in a single experiment at several positions, exposed to a wide range of wall shear rates. A deposition model including a shielding function was applied in order to describe the process. Three shielding functions obtained from the literature, which assumed different shielded areas, were compared. The size of the excluded area was shown to be dependent on the wall shear rate: a higher shear rate resulted in a larger area being blocked by deposited particles, thus preventing non-deposited, free-flowing particles from reaching the surface. (C) 2002 Elsevier Science B.V. All rights reserved.},
  author       = {Göransson, Anders and Trägårdh, Christian},
  issn         = {0927-7757},
  keyword      = {evanescent wave,particle deposition,wall-jet cell,surface blocking,shielding function},
  language     = {eng},
  number       = {3},
  pages        = {149--159},
  publisher    = {Elsevier},
  series       = {Colloids and Surfaces A: Physicochemical and Engineering Aspects},
  title        = {Modelling of sub-micron-sized particle deposition in a laminar wall jet - an investigation of the role of shielding},
  url          = {http://dx.doi.org/10.1016/S0927-7757(02)00008-0},
  volume       = {205},
  year         = {2002},
}