Determining electroosmotic velocity in a free liquid film Abdulkadir Hussein Sheik Hemaka Bandulasena Victor Starov Anna Trybala 2134/24667 https://repository.lboro.ac.uk/articles/conference_contribution/Determining_electroosmotic_velocity_in_a_free_liquid_film/9246479 The flow field within a free liquid film under an applied external electric field was measured using confocal micro-PIV system. Free liquid films of thickness ∼ 200 μm were formed in a rectangular frame with electrodes in direct contact with the fluid and stabilised by cationic surfactant. The flow field induced by an external electric field of ∼1600 V/m was visualised using 2 μm tracer particles on several depth wise planes. The observed particle velocities were used to determine the fluid velocities within the film by accounting for the electrophoresis of the tracer particles. 2017-04-07 10:50:23 untagged Chemical Engineering not elsewhere classified