Rheology of complex fluids by particle image velocimetry in microchannels

Rheology of complex fluids by particle image velocimetry in microchannels

We image the flow of complex fluids in microchannels of controlled geometry using tracers. The spatial resolution allows us to access quantitatively the bulk nonlinear rheology and wall slip, as we show on model polymer solutions. In perspective this strategy should prove useful for the study of het...

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Veröffentlicht in:Applied physics letters 2006-07, Vol.89 (2), p.024104-024104-3
Hauptverfasser: Degré, Guillaume, Joseph, Pierre, Tabeling, Patrick, Lerouge, Sandra, Cloitre, Michel, Ajdari, Armand
Format: Artikel
Sprache:eng
Schlagworte:
Biomechanics
Mechanics
Physics
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Zusammenfassung:We image the flow of complex fluids in microchannels of controlled geometry using tracers. The spatial resolution allows us to access quantitatively the bulk nonlinear rheology and wall slip, as we show on model polymer solutions. In perspective this strategy should prove useful for the study of heterogeneous flows of more complex fluids.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.2221501