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Cavity Radiation in Abaqus 6.11

Cavity Radiation in Abaqus 6.11

Cavity Radiation in Abaqus 6.11

(OP)

I am trying to analyse 3D heat transfer through a clay brick with three circular holes in the centre. There is a boundary condition of 303K set on one side of the brick and then 278K on the other. the analysis worked when I did not set any surface interactions so the holes in the centre were acting as being fully insulated but in real life the holes will act like a cavity. I've set the interactions all up properly (I think!) but the job will not solve and gives me this error:

The model attributes absolute zero temp must be set. It is required for the following interactions:
CantralCavityInteractions
The model attributes Stefan-Boltzmann constant must be set. It is required for the following interactions:
CantralCavityInteractions

I have these two values but just cant find where to put them in! Is there a icon in the model tree called 'Model Attributes'???
  

RE: Cavity Radiation in Abaqus 6.11

You need to right click on the model name in the model tree and go to edit attributes. From there add absolute zero and Stefan–Boltzmann constant.

RE: Cavity Radiation in Abaqus 6.11

lookup     5.1.5 Conductive, convective, and radiative heat transfer in an exhaust manifold
in the example problems manual

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