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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.
Note, select Off to deactivate radiation.
Models
Radiation
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Note that when the DTRM, the S2S, or the DO model is activated, the Radiation Model dialog box expands to show additional parameters. These parameters will not appear if you select one of the other radiation models. If you are running a 3d case, you will have the added option of using the solar load model. The solar load options will be displayed in the dialog box, below the radiation model settings.
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The
Rosseland model can be used only with the pressure-based solver.
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When the radiation model is active, the radiation fluxes will be included in the solution of the energy equation at each iteration. If you set up a problem with the radiation model turned on, and you then decide to turn it off completely, you must select the Off button in the Radiation Model dialog box.
Note that, when you enable a radiation model, ANSYS FLUENT will automatically enable the energy equation so that step is not needed.