ModelicaAdditions.HeatFlow1D.Examples

ModelicaAdditions.HeatFlow1D.Examples.HeatedRod

Information

A completely isolated rod is heated via a temperature source.
The precision of the discretization grid is checked by 
providing a solution for n=3 and for n=15 grid elements.

Simulate for 5.0e4 seconds and compare

  rod3.T[1:3]  with  rod15.T[{3,8,12}]

Modelica definition

model HeatedRod 
  "Heating of a rod with different discretization grids" 
  extends Modelica.Icons.Example;
  
  ModelicaAdditions.HeatFlow1D.HeatedRod rod3(
    L=1, 
    A=0.0004, 
    rho=7.5*1000, 
    lambda=74, 
    c=450, 
    n=3);
  ModelicaAdditions.HeatFlow1D.HeatedRod rod15(
    L=1, 
    A=0.0004, 
    rho=7.5*1000, 
    lambda=74, 
    c=450, 
    n=15);
  ModelicaAdditions.HeatFlow1D.TemperatureSource_C Tsource;
  Modelica.Blocks.Sources.Constant const(k={200});
equation 
  connect(const.outPort, Tsource.inPort);
  connect(Tsource.surface_b, rod3.surface_a);
  connect(Tsource.surface_b, rod15.surface_a);
end HeatedRod;