[aspect-devel] Nonlinear solver scheme

[Payman Janbakhsh]

Hi
For visco-plastic material model with fixed top surface , which non linear solver scheme is recommended? Particularly in 3D where DOFs are very large.
To be more specific on where my doubts are I should say, to my understanding velocity, temperature and viscosity are very much influencing each other in this model. So I was thinking choosing a scheme that solves temperature and velocity equations simultaneously. Please correct me if I'm off the chart.

As a second question, I know increasing temperature polynomial degree increases accuracy. So is it recommended to have it at 3 or 2 is sufficient for a viscoplastic 3D model.
Thanks

payman
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