I managed to import the table in CFX by right-clicking on User Functions > Insert > Table Function > Import., but when I edit the density under the material's properties, the software requires to specify an index between brackets. csv format where the first two columns contain the values of temperature and pressure and the last column the values of density corresponding to a specific couple of temperature and pressure values. Therefore, instead of inserting a mathematical expression in a polynomial form, I created a table in Excel in the. In particular, density is a function of both temperature and pressure. I designed a cryogenic centrifugal pump for liquid hydrogen and I simulated it in CFX 22.2 trying to account for density variation throughout the impeller.
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