Annular - Dispersed Flow

The liquid flows on the wall of the tube as a film (with some liquid entrained in the core) and the gas flows in the center; there is asymmetry in the film thickness due to the action of gravity

Visualization of the boundary layer transition in low-speed flow Visualization of Mechanical Processes 2726 Grain flow of the mud over a cylinder Visualization of Mechanical Processes 2763 Extinction of a methane–air laminar jet diffusion flame using a soap bubble filled with nitrogen gas Visualization of Mechanical Processes 2731