Fluid Film: Binary Liquid Film Flow with Evaporation and Edge Stripping

This tutorial demonstrates how to use the fluid film modeling capability of Simcenter STAR-CCM+ to set up a multi-component film scenario with evaporation and edge stripping. It simulates the progress of a film mixture of water and ethylene glycol flowing down a partially heated wall.

The liquid mixture flows down the wetted wall due to gravity, forming a film. The film evaporates and edge stripping occurs at the 153.4o bend.



The initial liquid film is at 293.15 K and covers the whole wetted wall with a 0.343 mm thickness. The surrounding multi-component gas is initially at rest and is composed of 99% dry air and 1% water vapor at 293.15 K. The case is run using the implicit unsteady solver for a simulated time of 5.0 seconds. The time step size is set to 0.01 seconds.