GHow to define UDF for Density in Ansys Fluent? and How to remove Error?

Azim07 · July 30, 2019, 08:26

i want to define the density in the in the form of Equation by UDF in ansys fluent of the following equation.

rho = 885/(0.0008(temp-321.35)+1)

i have written the following UDF

and it shows the following Error

https://www.cfd-online.com/Forums/at...1&d=1564485883

How can i solve this problem or any other way i can simply Define UDf in Easy way?????

AlexanderZ · July 31, 2019, 00:58

next time put here code, not picture

you've defined temperature as

Code:

real temp = C_T(c,t);

but later in equation you are using t (which is thread actually) but not temp

change t to temp in equation

best regards

July 31, 2019, 00:58		#2
AlexanderZ Senior Member Alexander Join Date: Apr 2013 Posts: 2,363 Rep Power: 34	next time put here code, not picture you've defined temperature as Code: real temp = C_T(c,t); but later in equation you are using t (which is thread actually) but not temp change t to temp in equation best regards