Hi,
it could be possible. I have partially coupled Palabos with CalculiX for FSI cases, however this is difficult as each new case requires writing a Palabos solver. What would be the coupling interface? A volume or a surface?
For the FSI case, Palabos reads in an STL file that is then able to provide the coordinates of the coupling interface. These points can then be modified to include displacement of the solid domain, and the forces on this surface can be extracted. However, I am not sure if a volume coupling is possible as you need the volume mesh from somewhere.
Regards
Kyle