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Visualization of the flow profile inside a thinning filament during capillary breakup of a polymer solution via particle image velocimetry (PIV) and particle tracking velocimetry (PTV)
flow profile thinning filament polymer solution particle tracking velocimetry Fluid Dynamics
2012/5/17
We investigated the flow profile of a polymer solution in a thinning capillary bridge. Fluorescent tracer particles with a diameter of 3$\mu$m were used to visualize the flow. The cylindrical shape of...
Polymer Maximum Drag Reduction: A Unique Transitional State
Polymer Maximum Drag Transitional State
2011/9/5
The upper bound of polymer drag reduction is identified as a unique transitional state between laminar and turbulent flow corresponding to the onset of the nonlinear breakdown of flow instabilities.