[Swift]

Greetings Foamers!

I am trying to modify the elbow example

I would like to model the mixing of two immiscible fluids in a pipe. I would like to have two inlet streams, each stream being of different materials, joining at 90 degrees to each other. This is somewhat similar to the icoFoam elbow example. I expect that in order to do this, I would need to use twoLiquidMixingFoam. Is this correct, or is there a better solver/example that I should look at?

The elbow example defines two inlets, one for each stream. My question is, how do I define different properties for each inlet patch. In my case I would I would like to define different densities for each fluid.

Thanks,

Thomas

[nimasam]

use interFoam, which is suitable for simulation of two immiscible incompressible flow

[Swift]

Hi Nima,

Thank you for your answer. I had a look at interFoam, and it looks like I could get it to do what I want. I will get to it as soon as I have time.

Thanks again!

Thomas

[Swift]

Hi again,

I have been relooking at this problem.

Where I get stuck is that I don't know how to set up the boundary conditions. In particular with regards to the inlets. In my case I want to have inlet1 be the inlet for fluid A and inlet2 be the inlet for fluid B. Can anyone suggest a tutorial that I can try and use to set up the boundary conditions for U? I have looked at multiphaseEulerFoam/bubbleColumn tutorial. I will try and use this but I want to know if there is something more similar to what I am trying to do. (realise that multiphaseEulerFoam is not suitable for my case)

Additionally, there will have to changes to the transportProperties file which I am unsure of how to do. For this, I'm guessing that I can look at one of the dam break tutorials for setting up the fluid properties.

Cheers,
Thomas

[and2300]

did you find a solution?
I have a very similar problem