For the radiation model if an eigenvalue run set the dt to 1.0 rather  than expect a user input. dt is not in the equation but used in the  acceleration form of the generic advection diffusion solve
For the radiation model if an eigenvalue run set the dt to 1.0 rather 
than expect a user input. dt is not in the equation but used in the 
acceleration form of the generic advection diffusion solve



jjo31/ATHAM-Fluidity,jjo31/ATHAM-Fluidity,jrper/fluidity,jrper/fluidity,jrper/fluidity,jjo31/ATHAM-Fluidity,rjferrier/fluidity,rjferrier/fluidity,jrper/fluidity,rjferrier/fluidity,jjo31/ATHAM-Fluidity,jjo31/ATHAM-Fluidity,iakovos-panourgias/fluidity,iakovos-panourgias/fluidity,iakovos-panourgias/fluidity,rjferrier/fluidity,iakovos-panourgias/fluidity,rjferrier/fluidity,jrper/fluidity,iakovos-panourgias/fluidity