Problem with organic fluid property
 

Hi,

i'm simulating a radial turbine that works with organic fluid. This Fluid there isn't in fluent database. I create it and i select this properties: cp, density, viscosity, thermal condicivity, Molecular Weight, standard hentalpy/entropy status calculated as avarage value between inlet and outlet turbine boundary conditions, Pcritical, Tcritical, refence temperature as 298,15 K.
The results are very bad and abnormall and i don't understand it.
Help me, please.
Thank you.