Paper Number
PO75                         My Program 

Session
Poster Session

Title
Tuning the microstructure and particulate network in attractive colloidal gels through oscillatory shear flows

Presentation Date and Time
October 22, 2025 (Wednesday) 6:30

Track / Room
Poster Session / Sweeney Ballroom E+F

Authors (Click on name to view author profile)

1. Tan, Mingyang (Northeastern University, Department of Mechanical and Industrial Engineering)
2. Jamali, Safa (Northeastern University, Mechanical and Industrial Engineering)

Author and Affiliation Lines (in printed abstract book)
Mingyang Tan and Safa Jamali
Department of Mechanical and Industrial Engineering, Northeastern University, Boston, MA 02115

Speaker / Presenter 
Tan, Mingyang

Keywords
colloids; gels; particualte systems; selft-assemblies; suspensions

Text of Abstract
Attractive colloidal gels find applications across a wide range of fields, including pharmaceuticals, food, consumer products, and constructions. Generally, colloidal gels form through percolation of a particulate network from individual particle-level physical bonds. As such, the overall mechanics of colloidal gels are directly governed by this network’s characteristics. It has been shown that mechanical disturbance in the form of small amplitude oscillatory flows offers an effective means of tuning gel mechanics. In this study, we employ Brownian dynamics simulations incorporating the Rotne-Prager-Yamakawa tensor to investigate attractive colloidal gels under oscillatory shear. We study the microstructural consequences of mechanical tuning in colloidal gels. Our analysis focuses on how the structural features and network connectivity of colloidal gels evolve with different flow conditions, attractive strengths, and volume fractions.