Particle attraction to walls by diffusion-induced stratified flows: experimentation
Year: 2024
Type: article
Abstract: We present experiments for a new phenomenon in which particulate suspended in stable, linear stratification are attracted to vertical walls. The mechanism originates from a broken symmetry in the diffusion-induced stratified flow exterior to a sphere near a vertical wall which creates an effective force of attraction arising through the viscous stress tensor. This boundary layer behavior drives particles initially within one radius of the wall to collapse in finite time. Details of the experimental observations will be discussed and further contrasted with prior self-assembly phenomena which documented two spheres collapsing in finite time in a stratified water column (https://www.nature.com/articles/s41467-019-13643-y).
DOI: 10.17615/jh0z-j910
Author: Britt, Tyler
Institution: University of North Carolina at Chapel Hill
Language: English
Subfield: Ocean Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W6887918239
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