Infrared video of a warm water surface in the presence and absence of surfactant monolayers

TL;DR

This paper presents infrared videos of warm water surfaces demonstrating convective behaviors with and without surfactant monolayers, highlighting differences between no monolayer, liquid-phase, and solid-phase monolayers.

Contribution

It provides visual evidence of how different surfactant monolayers affect convective processes on water surfaces.

Findings

Surfactant monolayers alter convective patterns.

Liquid-phase and solid-phase monolayers produce distinct surface behaviors.

Infrared imaging effectively captures surface dynamics.

Abstract

Infrared (IR) videos are presented which show a warm water surface undergoing convective processes. These fluid dynamics videos show the water surface with: 1) no surfactant monolayer material present, 2) a liquid-phase monolayer of oleyl alcohol, and 3) a solid-phase monolayer of cetyl alcohol.