Microscopic Mechanism for Shear Thickening of Non-Brownian Suspensions
Microscopic Mechanism for Shear Thickening of Non-Brownian Suspensions
We propose a simple model, supported by contact-dynamics simulations as well as rheology and friction measurements, that links the transition from continuous to discontinuous shear thickening in dense granular pastes to distinct lubrication regimes in the particle contacts. We identify a local Sommerfeld number that determines the transition from Newtonian …