Paper Number
GR9 

Session
Gallery of Rheology Contest

Title
Go with the flow

Presentation Date and Time
October 17, 2018 (Wednesday) 6:30

Track / Room
Gallery of Rheology / Woodway Foyer

Authors (Click on name to view author profile)

1. Geri, Michela (MIT, Mechanical Engineering)
2. Keshavarz, Bavand (Massachusetts Institute of Technology, Mechanical Engineering)
3. McKinley, Gareth H. (Massachusetts Institute of Technology)

Author and Affiliation Lines (in printed abstract book)
Michela Geri, Bavand Keshavarz, and Gareth H. McKinley
Massachusetts Institute of Technology, Cambridge, MA 02139

Speaker / Presenter 
Geri, Michela

Text of Abstract
The rheological behavior of many complex fluids is strongly dependent on the rearrangements that happen to their microstructural constituents, such as solid particles and polymer chains, as they interact with each other and with the continuous solvent phase. It is known that polymer chains can stretch upon elongation, while micrometric non-spherical particles tend to align with the shear flow. In this work we take advantage of full-field high-speed birefringence imaging to visualize how these rearrangements take place under different flow conditions, giving rise to striking pictures of the otherwise hidden local features of complex fluid flows.