I want to make a simulation for two different color liquid mix together, lets say fluid A ( red in color) and fluid B (yellow in color). I want to simulate it in Fluent to determine the diffusion rate between this two fluids. Can I make it in Fluent to look the changes of the color when this two fluids mix together??

Thanks in advanced.

liquid color changes when it mix in Fluent

Quoc, so how to do that? I've try to set the two liquid A and liquid B with different color, but i cannot do that...

Color is a function of the human visual system, and is not an intrinsic property. The related physical property for the color of a solution is the transmission or absorption spectrum. And I'm not too sure if CFD techniques can provide solution to the calculations involving theory of spectra.

tq Prasad. so how can i determine the diffusion rate...need to write UDF for diffusivity? any suggestion?