I'm seeing the following error in one of my simulations and don't understand quite what it is telling me about the problem at T=0 using the DASSL solver under Dymola:
CODE
Compressor.massFlowRate.port_a.h = -1.12564E-011
... Simulation continues with minimum norm solution
... Simulation continues with minimum norm solution
It does get past this error but I would like to understand it.
The model is of a compressor/air blower. I'm trying to run this model from a steady state condition of doing nothing, ie all the pressures and temperatures around the compressor component are constant, the compressor speed is zero and therefore all mass flows are zero.
Also I don't understand how the specific enthalpy of a air (using the media model) in these conditions 20degC and 1bar can take the value shown in the error message.
Can any one explain this error message in more detail?
Thanks