Work

Hydrodynamic interactions change the buckling threshold of parallel flexible sheets in shear flow

Year: 2023

Type: article

Abstract: Viscous-flow induced buckling modifies the morphology of sheet-like particles suspended in liquids. Experiments reveal that a pair of sheets can bend at a shear rate ten times lower than the buckling threshold defined for a single sheet. Using simulations and modeling, we demonstrate that this softening is due to hydrodynamic interactions. Our study suggests that the morphology of sheet-like particles in suspensions and the resulting rheology is not a purely material property, but also depends on particle concentration and microstructure.

Source: Physical Review Fluids

DOI: 10.1103/physrevfluids.8.124103

Authors: Hugo Perrin, Heng Li, Lorenzo Botto

Institution: Delft University of Technology

Language: English

Topic: Rheology and Fluid Dynamics Studies

Subfield: Fluid Flow and Transfer Processes

Field: Chemical Engineering

Domain: Physical Sciences

Open Access status: green

Funders: European Commission, European Research Council, Horizon 2020

Awards: G434337789, G5166439991, G5761679404