RDSF(surface-to-surfaceradiation).面到面的辐射
IfLab=RDSF,VALUEistheemissivityvalue;0.85是辐射率,thefollowingconditionsapply:IfVALUEisbetween0and1,applyasinglevaluetothesurface.
IfLab=RDSF,VALUE2istheenclosurenumber.Radiationwilloccurbetweensurfacesflaggedwiththesameenclosurenumbers.Iftheenclosureisopen,radiationwillalsooccurtoambient.IfVALUE2isnegativeradiationdirectionisreversedandwilloccurinsidetheelementfortheflaggedradiationsurfaces.NegativevalueofenclosurenumberisapplicableforFLUID141andFLUID142elements,tomodelradiationoccurringbetweensurfacesinsidethefluiddomain.-1代表向单元内部辐射