Christelle Fritz, Olivier Pitois and Michèle Vignes-Adler
1
0 0.5 1 1.5 2 0 0.2 0.4 0.6 0.8 1 d/d lim v . s i n ( θ ) / v S t o k e s Christelle Fritz, Olivier Pitois and Michèle Vignes-Adler Control of the liquid fraction Giant Plateau border with solid surfaces h= 7mm P=gh Static conditions spherical glass beads Diameters: d = [15µm, 45µm] Experiment particles : spherical glass beads Diameters: d = [1.5;5 mm] Liquid: oil Particles : Boundary conditions « Mobile » « Rigid » Image processing SDS(3g/L)+ Dodecanol (0.01g/L) S = 2.10 -5 g/s * SDS(3g/L)+ Dodecanol (0.1g/L) S = 2.10 -3 g/s * * Liquid drainage through aqueous foam: study of the flow on the bubble scale. JCIS 2004 « Rigid Pb » « Mobile Pb » Particle diameter 35 µm, t= 640 ms Plateau border section at the cell windows r=500µm r=600µm reservoir cell Plateau border Node , , camera Particle injection system foam Node area Acceleration Deceleration Plateau border area Hydrophobic particles are attached to bubble interfaces. Hydrophilic particles are transported through the liquid phase. Separation of minerals using the flotation technique Prospects Collective effects Sedimentation + Liquid flow 1 mm sintered glass plate liquid The objective of this work is to provide new information on the particle transport on the local scale. mobile rigid solid θ R d lim d particle v r=30 mm Particle sedimentation Settling of Solid Particles in Plateau Borders and Nodes
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Christelle Fritz, Olivier Pitois and Michèle Vignes-Adler. Settling of Solid Particles in Plateau Borders and Nodes. Plateau border. Node. Hydrophobic particles are attached to bubble interfaces. Hydrophilic particles are transported through the liquid phase. - PowerPoint PPT Presentation
Transcript of Christelle Fritz, Olivier Pitois and Michèle Vignes-Adler
0
0.5
1
1.5
2
0 0.2 0.4 0.6 0.8 1
d/d lim
v.sin(
θ)/vStokes
Christelle Fritz, Olivier Pitois and Michèle Vignes-Adler
Control of the liquid fraction
Giant Plateau border with solid surfaces
h= 7mm
P=gh
Static conditions
spherical glass beadsDiameters: d = [15µm, 45µm]
Experiment
particles : spherical glass beadsDiameters: d = [1.5;5 mm]Liquid: oil
Particles:
Boundary conditions
« Mobile »
« Rigid »
Image processing
SDS(3g/L)+ Dodecanol (0.01g/L)
S = 2.10-5 g/s *
SDS(3g/L)+ Dodecanol (0.1g/L)
S = 2.10-3 g/s *
* Liquid drainage through aqueous foam: study of the flow on the bubble scale.
JCIS 2004
« R
igid
Pb
»«
Mo
bile
Pb
»
Particle diameter 35 µm, t= 640 ms
Plateau border section at the cell windows
r=500µm r=600µm
reservoircell
Plateau border
Node
, , camera
Particle injection system
foam
Node area
AccelerationDeceleration
Plateau border area
Hydrophobic particles are attached to bubble interfaces.
Hydrophilic particles are transported through the liquid phase.
Separation of minerals using the flotation technique
Prospects
Collective effects
Sedimentation
+
Liquid flow
1 mm
sintered glass plate
liquid
The objective of this work is to provide new information on the particle transport on the local scale.
mobile
rigid
solid
θ
Rdlim
d particle
v
r=30 mm
Particle sedimentation
Settling of Solid Particles in Plateau Borders and Nodes
Settling of Solid Particles in Plateau Borders and Nodes
