Polymer Technology
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Foam
FE simulation of compression of a foam structure with neo-Hookean material behaviour (left) and viscoplastic materials behaviour...
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Honeycomb
FE simulation of compression of a polycarbonate honeycomb structure
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Semicrystalline polymer during uniaxial tension
Predicted texture evolution in a semicrystalline polymer during uniaxial tension.
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Deformation of RVE Polycarbonate
Deformation of a representative volume element of voided polycarbonate. Green is elastic, red is plastic. The deformation spreads...
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Deformation of RVE Polystyrene
Deformation of a representative volume element of voided polystyrene. Bleu is elastic, coloured is plastic. Note the localization...
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Deformation of RVE Polystyrene with rubber shell-filled voids
Filling the voids in polystyrene with load-bearing rubber shells that support the stretching filaments gives enough extra strain...
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Twin screw extrusion
The start of mixing optimization with the "Mapping Method" is an accurate computation of the velocity field. The lack of...
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Distributive mixing in a 2D cavity flow
This movie shows the deformation of two blobs in a rectangular cavity. The mixing protocol consists of a periodic motion of the...
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Crystallization
Crystallization of a melt during injection moulding. Red is spherulites, blue is flow induced, anisotropic crystals (shis-kebabs)....
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Mixing: Kenics mixer with correctly oriented blades
Lagrangean view of the development of stratified structures in a Kenics mixer, using the so-called Mapping Method. The blades have...
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Mixing: Kenics mixer with correctly oriented blades
Lagrangean view of the development of stratified structures in a Kenics mixer, using the so-called Mapping Method.The blades are...
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Rain
A typical Dutch problem: nucleation, grow, gravity induced flow, coalescense on the umbrella, flow of the umbrella, break-up and...
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Flow past a confined excentric cylinder and in our cross-slot device
Flow past a confined cylinder and in our real 2D cross-slot device with mercury and laser lighting for improved resolution. What...
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Binodal decomposition
Binodal decomposition: growth of a supercritical nucleus, starvation of a subcritical nucleus, depletation around the column...
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Spinodal decompostion
Spinodal decompostion. (Diffuse interface method: Cahn-Hilliard, Ginzburg-Landau)
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3D spinodal decomposition
Phase separation (spinodal decomposition) in a 3D cube with quiescent conditions (Cahn number (C) = 0.04, Peclet (Pe) = 25....
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Spinodal decomposition under shear
Spinodal decomposition under shear
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Fireworks1
Rather interesting blob deformation and breakup. The phenomena shown are nor explained yet, but may be due to Maragoni (surface...
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Fireworks2
The systems of continuous phase:silicon oil, disperse phase: PEO in water (sometimes SDS -sodium docecylsulphate- is added as a...
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Fireworks3
The systems of continuous phase:silicon oil, disperse phase: PEO in water (sometimes SDS -sodium docecylsulphate- is added as a...
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Drop breakup 1
Drop deformation and breakup in shear flow (u=y) at Ca=0.45 and viscosity ratio 1. After the initial deformation the flow stops....
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Drop breakup 2
The breakup stage - after the flow stops (see the previous movie).
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Drop coalescence
Drop-to-drop interaction in shear flow (u=y) at Ca=0.25 and viscosity ratio 1. The initial vertical offset is 0.5 from the drop...
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Foam drop formation
Formation of a foam drop with volume fraction up to 98% by an expansion of 8 inner drops: Outer drop (Left); Inner drops (Right). ...
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Foam drop structure 2
Crossection of a foam drop containing 8 inner drops at volume fraction 95% in equilibrium: The interfaces behind the cross plane...
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Foam drop in shear flow (4 drops)
Foam drop containing 4 equal-sized inner drops at volume fraction 95% in simple shear flow (u=y), Ca=0.2: Outer drop (Left, Up);...
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Foam drop in shear flow (8 drops)
Foam drop containing 8 (4x10.25% and 4x13.5%) inner drops at volume fraction 95% in simple shear flow (u=y), Ca=0.2: Outer drop...
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Viscoelastic effects in Polymer Coextrusion
Viscoelastic effects in Polymer Coextrusion
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