[chin]

Hello everyone,

I just started FLUENT and I am currently having trouble simulating the mixing of dye-water (properties same water but 0.1% density difference) and water in a rotating cylinder. I am using the VOF model where it does not actually show the mixing between two liquids and it just shows clear interfaces between the liquids. The simulation from the picture is what I wished to achieve.
I appreciate any help you can provide. Thank you in advance.

Capture.JPG

[Far]

Originally Posted by chin

Hello everyone,

I just started FLUENT and I am currently having trouble simulating the mixing of dye-water (properties same water but 0.1% density difference) and water in a rotating cylinder. I am using the VOF model where it does not actually show the mixing between two liquids and it just shows clear interfaces between the liquids. The simulation from the picture is what I wished to achieve.
I appreciate any help you can provide. Thank you in advance.

Attachment 72121

VOF is free surface type eurlerian model. It is designed to keep interface between two or more phases.

[chin]

Am I supposed to use species transport for my case? Sorry I am still in the progress of learning Fluent

[Far]

I have never done it. But I guess you are in right direction. You can check this paper as well..

https://www.tandfonline.com/doi/pdf/....2009.11015260

[chin]

Thanks for helping. I will try referring this paper.