Units of non - newtonian parameters
I try to model a viscous debris flow as a herschel - bulkley fluid. The parameters are to be calibrated later with an experiment. For the start values I did a literature research. Thereby I came to the following parameters:
Consistency Index k: 74 (Pa*s^n); Yield Stress: 1341 (Pa); Flow Index n: 1.40 (-); Papanastasiou Index m: 1000 (s) and for the density: 2100 (kg/m^3).
If I enter these values like this, the simulation takes a very long time and the liquid does not flow. Now I noticed that in the configuration XML at Specific yield stress of phase the remark: (Pa m3/kg) is written. But this unit makes no sense for me, because if I enter 1341 * 2100 = 2816100 as value, the calculation will run even longer.
The values for the yield stress in the examples (e.g. DamBreak) are much smaller: 0.0005 in the DamBreak example. The same applies to the consistency index: 0.01 for the DamBreak example.
My question is now: what are the propper units for the parameters in DualSPHysics?
Many thanks in advance