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7.3.2 Limitations of Shell Conduction Walls

The following is a list of limitations for the shell conduction model:

w Shells cannot be created on non-conformal interfaces.
w Shell conduction cannot be used on moving wall zones.

w Shell conduction cannot be used with FMG initialization.

w Shell conduction is not available for 2D.
w Shell conduction is available only when the pressure-based solver is used.

w Shell conduction cannot be used with the non-premixed or partially-premixed
com-bustion model.

w When used in conjunction with the Discrete Ordinates (DO) radiation model, shell conducting
walls cannot be semi-transparent and should not be used with the DO/Energy Coupling Method.

w Shell conducting walls cannot be split or merged. If you need to split or merge a shell conducting
wall, you will need to turn off the Shell Conduction option for the wall (in the Wall dialog box,
perform the split or merge operation, and then enable Shell Conduction for the new wall zones.
w The shell conduction model cannot be used on a wall zone that has been adapted. If you want to
perform adaption elsewhere in the computational domain, be sure to use the mask register
described in Section 27.11.1. This will ensure that adaption is not performed on the shell
conducting wall.
w Fluxes at the ends of a shell conducting wall are not included in heat balance reports. These fluxes
are accounted for correctly in the ANSYS FLUENT solution, but are not listed in the flux report.

7.4 Radiation Models

The procedure for setting up and solving a radiation problem is outlined below, and described in detail
in referenced sections. Steps that are relevant only for a particular radiation model are noted as such.
Remember that the steps that are pertinent to radiation modeling, only, are shown here. For
information about inputs related to other models that you are using in conjunction with radiation, see
the appropriate sections for those models.
1. Activate radiative heat transfer by selecting a radiation model (Rosseland, P1, Dis-crete Transfer
(DTRM), Surface to Surface (S2S), or Discrete Ordinates) under Model in the Radiation Model dialog
box

Note, select Off to deactivate radiation.

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