Archived OpenModelica forums. Posting is disabled.

Alternative forums include GitHub discussions or StackOverflow (make sure to read the Stack Overflow rules; you need to have well-formed questions)


Forgot password? | Forgot username? | Register
Page Start Prev 1 Next End

array inside function

#9930  Permalink Top

array inside function

May-04-20 20:12:41

hi,

  I have the function below and among her inputs, there is Ta and as you can see it is declared as array,

Code:


function Nusselt_free_convection_fg_test



    

      output Real Nu[5];

      input Real  Ta[5];

      input Real  v, ni, Pr, Tfilm, Tfg_3, Lpan, teta;

    protected

      //--------------

      //import Modelica.Constants;

      parameter Real Pi = Modelica.Constants.pi;

      parameter Real g = 9.81;

      Real beta;

      Real cteta;

      Real Gr[5];

      Real Grcr;

    algorithm

      beta := 1 / Tfilm;

      cteta := 90 - teta;

      for i in 1:5 loop

        Gr[i] := g * cos(cteta * Pi / 180) * beta * (Tfg_3 - Ta[i]) * Lpan ^ 3 / ni ^ 2;

        if v < 2 then

          Grcr := 15.0 * 10 ^ 9;

        else

          Grcr := 6.0 * 10 ^ 9;

        end if;

        Nu[i] := 0.14 * ((Gr[i] * Pr) ^ (1 / 3) - (Grcr * Pr) ^ (1 / 3)) + 0.56 * (Grcr * Pr * cos(teta * Pi / 180)) ^ (1 / 4);

      end for;

    

end Nusselt_free_convection_fg_test;

when I simulate this function by the test fuction below I got this error message
]: Type mismatch for positional argument 1 in Nusselt_free_convection_fg_test(Ta=Ta[i]). The argument has type:
  Real
expected type:
  Real[5]
can anyone help me?

Code:




class test_propria_fun

Real a[5];

parameter Real Ta[5]={24.6,23.5,23.3,24.1,24.5};

equation

for i in 1:5 loop

a[i]=Nusselt_free_convection_fg_test(Ta[i],1.5,1.6699e-5,0.7110,310,35,3.354,45);

end for;

end test_propria_fun;

Edited by: Abderezakabidi - May-04-20 20:13:52
Page Start Prev 1 Next End
Previous topic
Next topic
There are 0 guests and 0 other users also viewing this topic
You are here: