English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

A two dimensional channel flow in which a bubble adheres to one of the walls is studied computationally. The flow regime of interest here corresponds to very low Reynolds numbers. This allows us to model the flow using Stokes equations. The numerical method used is the boundary element method (BEM). A Tanner law is used to model the moving contact line dynamics. Both hydrophilic and hydrophobic channel walls are considered. The evolution of the bubble interface, pressure and velocity fields, and wall normal and shear stresses are studied for different values of inlet to outlet pressure ratios. The wall normal and shear stresses peak at the contact lines. It is shown that the horizontal force acting on the bubble approaches a constant value as the simulation progresses in time.

A boundary element model of vascular gas bubble sticking and sliding