It is known that viscoelastic fluids exhibit elastic instabilities in simple shear flow and flow with curved streamlines. During flow through a straight microchannel with pillars, we found strikingly strong hydrodynamic instabilities characterized by very large transversal excursions, even leading to a complete change in lanes, and the presence of fast and slowmoving lanes. Particle image velocimetry measurements through a pillared microchannel provide experimental evidence of these instabilities at a very low Reynolds number (< 0.01). The instability is characterized by a rapid increase in spatial and temporal fluctuations of velocity components and pressure at a critical Deborah number. We characterize under which conditions these strong ...
Complex fluids, especially fluids containing polymer molecules, are frequently encountered in everyd...
Complex fluids, especially fluids containing polymer molecules, are frequently encountered in everyd...
This paper presented a direct numerical simulation (DNS) study on the elasticity-induced irregular f...
\u3cp\u3eIt is known that viscoelastic fluids exhibit elastic instabilities in simple shear flow and...
It is known that viscoelastic fluids exhibit elastic instabilities in simple shear flow and flow wit...
It is known that viscoelastic fluids exhibit elastic instabilities in simple shear flow and flow wit...
It is known that viscoelastic fluids exhibit elastic instabilities in simple shear flow and flow wit...
It is known that viscoelastic fluids exhibit elastic instabilities in simple shear flow and flow wit...
Polymer liquids are used in the oil industry to improve the volumetric sweep efficiency and displace...
Polymer liquids are used in the oil industry to improve the volumetric sweep efficiency and displace...
Complex fluids, especially fluids containing polymer molecules, are frequently encountered in everyd...
Complex fluids, especially fluids containing polymer molecules, are frequently encountered in everyd...
Many artificial and natural fluids contain macromolecules, particles or droplets that impart complex...
A dynamical instability is observed in experimental studies on micro-channels of rectangular cross-s...
A dynamical instability is observed in experimental studies on micro-channels of rectangular cross-s...
Complex fluids, especially fluids containing polymer molecules, are frequently encountered in everyd...
Complex fluids, especially fluids containing polymer molecules, are frequently encountered in everyd...
This paper presented a direct numerical simulation (DNS) study on the elasticity-induced irregular f...
\u3cp\u3eIt is known that viscoelastic fluids exhibit elastic instabilities in simple shear flow and...
It is known that viscoelastic fluids exhibit elastic instabilities in simple shear flow and flow wit...
It is known that viscoelastic fluids exhibit elastic instabilities in simple shear flow and flow wit...
It is known that viscoelastic fluids exhibit elastic instabilities in simple shear flow and flow wit...
It is known that viscoelastic fluids exhibit elastic instabilities in simple shear flow and flow wit...
Polymer liquids are used in the oil industry to improve the volumetric sweep efficiency and displace...
Polymer liquids are used in the oil industry to improve the volumetric sweep efficiency and displace...
Complex fluids, especially fluids containing polymer molecules, are frequently encountered in everyd...
Complex fluids, especially fluids containing polymer molecules, are frequently encountered in everyd...
Many artificial and natural fluids contain macromolecules, particles or droplets that impart complex...
A dynamical instability is observed in experimental studies on micro-channels of rectangular cross-s...
A dynamical instability is observed in experimental studies on micro-channels of rectangular cross-s...
Complex fluids, especially fluids containing polymer molecules, are frequently encountered in everyd...
Complex fluids, especially fluids containing polymer molecules, are frequently encountered in everyd...
This paper presented a direct numerical simulation (DNS) study on the elasticity-induced irregular f...