FLIP fluid particles not separating despite opposing forces

[Dand]

Hi everyone, I'm trying to create a FLIP simulation where a fluid source is split into two parts: a blue top and a red bottom. My goal is to have them physically separate, with the red part falling away from the blue part.

However, the fluid stays connected and won't split.

 

• Blue source: force attribute set to (0, 0.1, 0)

• Red source: force attribute set to (0, -9.8, 0)

Even with these opposing forces, the drops remain stuck together. How can I achieve physical separation between these two colored regions within the same FLIP solver?

I tried various values for surface tension and viscosity.

 

I've attached my HIP file for reference. Thank you!

drop_separation.hiplc