[Josue Fraire]

I'm working with oil so dynamic viscosity is too low and the polynomial regression for this property use to have coefficients with more than 12 decimals in order to have a pretty low error in the viscosity calculation, so I set the material properties and enter the coefficients for the function and I save changes, but when I go back to the material property I realize it changes to 6 decimals.

what can I do to keep more decimals for the coefficients?

By the way, I'm using double precision simulation

Thanks

[lazregenset]

Originally Posted by Josue Fraire

I'm working with oil so dynamic viscosity is too low and the polynomial regression for this property use to have coefficients with more than 12 decimals in order to have a pretty low error in the viscosity calculation, so I set the material properties and enter the coefficients for the function and I save changes, but when I go back to the material property I realize it changes to 6 decimals.

what can I do to keep more decimals for the coefficients?

By the way, I'm using double precision simulation

Thanks

im so soory bat im in the big pb.halp me .how to calcule 103.1006 and -1.202039
in other face how to calcul A1A2....
donner moi impeu detailler s.t.p

[macfly]

Josue:
Materials... Create/Edit... User-Defined Database... Copy Materials From Case... then save the database file (.scm) somewhere.
Open the database file in notepad and you will see the actual number of decimals of the polynomial coefficients.

lazregenset:

[lazregenset]

Originally Posted by macfly

Josue:
Materials... Create/Edit... User-Defined Database... Copy Materials From Case... then save the database file (.scm) somewhere.
Open the database file in notepad and you will see the actual number of decimals of the polynomial coefficients.

lazregenset:

thanks thank you verri match

[lazregenset]

Originally Posted by macfly

Josue:
Materials... Create/Edit... User-Defined Database... Copy Materials From Case... then save the database file (.scm) somewhere.
Open the database file in notepad and you will see the actual number of decimals of the polynomial coefficients.

lazregenset:

thanks again i'm very happy for him find people like you in my life thanks again

[Josue Fraire]

I have already done that, but I realized that even if I add all necessary decimals for my regression in the notepad file, as soon as I open the property manager in fluent, the amount of decimals will be decreased.

the max amount of decimals is 8, and I need 12