Mantaflow New Viscosity Solver

I would like to have a more accurate viscosity solver. To be able to simulate super viscous fluids. And so that you can simulate a bending, winding, rotating liquid. So that the liquid bends in a circle, like here:

youtu.be/-tM-dQ4PA88

I want to have a viscosity that winds up in a circle. Here is the wrong viscosity:

youtu.be/Oxsr4m-s3C8