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-   -   liquid color changes when it mix in Fluent? (http://www.cfd-online.com/Forums/fluent/49321-liquid-color-changes-when-mix-fluent.html)

fadhil September 23, 2008 02:10

liquid color changes when it mix in Fluent?
 
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. :)

Quoc September 23, 2008 11:29

Re: liquid color changes when it mix in Fluent?
 
liquid color changes when it mix in Fluent

fadhil September 23, 2008 11:50

Re: 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...

Prasad September 30, 2008 01:37

Re: liquid color changes when it mix in Fluent?
 
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.

fadhil October 9, 2008 03:46

Re: liquid color changes when it mix in Fluent?
 
tq Prasad. so how can i determine the diffusion rate...need to write UDF for diffusivity? any suggestion?


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