Two Questions regarding rheoTestFoam

[dbuender]

Question 1: Why is there a change in DeltaT in the ramp mode?

My Thoughts: The steady state simulation should not depend on the size of the timestamp. On the other hand, I have simulations witch abort with changing DeltaT, but run when I commend the adjustment of time steps.

Q1_run_with_DeltaT_change : Simulation is aborting

Q1_run_with_DeltaT_change : Simulation is running

Question 2: Are the different Simulations in Ramp mode are influencing each other?

My thoughts: Because I can get a Simulation running for a specific shearrate in ramp mode with other shearrates, but when only this specific shearrate is selected the simulation aborts because the values diverge

Q2_classic_ramp : a solution for gamma_dot = 1 s^-1 (run with rheoTestFoam_NoDeltaTchange)

Q2_classic_ramp : no solution for gamma_dot = 1 s^-1 (run with rheoTestFoam_NoDeltaTchange)

For better understanding, in uploaded an example project: https://github.com/dbuender/rheoTestFoamSolver_Question

[dbuender]

I must apologize, as my question come from the false thought rheoTestFoam is a Steady State Solver. As it is in fact a transient Solver, the question is answered.