Buildings.Fluid.Movers.BaseClasses.Characteristics.Examples

Information

Package Content

Name	Description
LinearFlowDerivativeCheck	Model to check implementation of derivative function
QuadraticFlowDerivativeCheck	Model to check implementation of derivative function

Buildings.Fluid.Movers.BaseClasses.Characteristics.Examples.LinearFlowDerivativeCheck

Information

This example checks whether the function derivative is implemented correctly. If the derivative implementation is not correct, the model will stop with an assert statement.

Modelica definition

model LinearFlowDerivativeCheck 
  "Model to check implementation of derivative function"

  Real x;
  Real y;
  constant Real timeToFlow(unit="m3/s2")=1 
    "Conversion factor to satisfy unit check";
initial equation 
   y=x;
equation 
  x=Buildings.Fluid.Movers.BaseClasses.Characteristics.linearFlow(
     V_flow=time*timeToFlow-2,
     V_flow_nominal={1, 0},
     dp_nominal=  {0, 3000},
     r_N=  0.5);
  der(y)=der(x);
  assert(abs(x-y) < 1E-2, "Model has an error");
end LinearFlowDerivativeCheck;

Buildings.Fluid.Movers.BaseClasses.Characteristics.Examples.QuadraticFlowDerivativeCheck

Information

This example checks whether the function derivative is implemented correctly. If the derivative implementation is not correct, the model will stop with an assert statement.

Modelica definition

model QuadraticFlowDerivativeCheck 
  "Model to check implementation of derivative function"

  Real x;
  Real y;
  constant Real timeToFlow(unit="m3/s2")=1 
    "Conversion factor to satisfy unit check";
initial equation 
   y=x;
equation 
  x=Buildings.Fluid.Movers.BaseClasses.Characteristics.quadraticFlow(
     V_flow=time*timeToFlow,
     V_flow_nominal={0, 1.8, 3},
     dp_nominal=  {1000, 600, 0},
     r_N=  0.5);
  der(y)=der(x);
  assert(abs(x-y) < 1E-2, "Model has an error");
end QuadraticFlowDerivativeCheck;