High temperature of parcels in coalChemistryFoam

amin_jalalian · April 5, 2017, 09:33

Hi Foamers,

I have high max temperature for coal parcels around 5000 K, and solver write "Maximum number of iterations exceeded" and stop.
I changed maximum time step from 2.5e-5 to 4e-6 but not be correct.
I changed h solver from PBiCG to smoothSolver but not be correct.
I changed for T of parcel from Euler to analytical but the error is yet.
I attached the results picture.

What can I do?

pyroWinter · June 5, 2017, 09:49

What are your boundary conditions? Depending on the case, sometimes those errors arise when the mass balance is incorrect (check the sum of the mass fractions in the boundary conditions, as well as any other physical incoherence that may be present). The time step may be related as well.

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June 5, 2017, 09:49		#2
pyroWinter New Member David Buentello Join Date: Jan 2017 Posts: 15 Rep Power: 9	What are your boundary conditions? Depending on the case, sometimes those errors arise when the mass balance is incorrect (check the sum of the mass fractions in the boundary conditions, as well as any other physical incoherence that may be present). The time step may be related as well.