Viscoelastic fluids

Hallo Palabos community,

I am very new here and I have a question about the use of Palabos.
For my project I need to solve a die swell problem (polymer extrusion) considering a multi-phase flow in which the fluid part is a viscoelastic fluid. I would like to do it with LBM.
Is there the possibility in Palabos to use some viscoelastic model (e.g. Maxwell model) or is there someone who developed a viscoelastic fluid model using LB?

Thanks for your help.