model test

replaceable package Medium =

      Modelica.Media.Water.ConstantPropertyLiquidWater                           constrainedby

    Modelica.Media.Interfaces.PartialMedium "Medium in the component"

      annotation (choicesAllMatching = true);

      

  Modelica.Fluid.Vessels.OpenTank tank(redeclare package Medium = Medium, crossArea = 1, height = 4, level(start = 4 * 0.8), nPorts = 1, portsData = {Modelica.Fluid.Vessels.BaseClasses.VesselPortsData(diameter = 0.3, height = 0)}, use_portsData = true)  annotation(

    Placement(visible = true, transformation(origin = {-42, 64}, extent = {{-10, -10}, {10, 10}}, rotation = 0)));

  Modelica.Fluid.Sources.FixedBoundary boundary(redeclare package Medium = Medium, nPorts = 1, p = 200000) annotation(

    Placement(visible = true, transformation(origin = {44, 8}, extent = {{-10, -10}, {10, 10}}, rotation = 180)));

  inner Modelica.Fluid.System system annotation(

    Placement(visible = true, transformation(origin = {-78, 84}, extent = {{-10, -10}, {10, 10}}, rotation = 0)));

  Modelica.Fluid.Machines.PrescribedPump pump(

  redeclare function flowCharacteristic =

        Modelica.Fluid.Machines.BaseClasses.PumpCharacteristics.quadraticFlow (

          V_flow_nominal={0.1,0.25,0.46}, head_nominal={46,40,30}), redeclare package Medium = Medium,N_const = 300, N_nominal = 1200, T_start = system.T_start, V = 50, checkValve = true, energyDynamics = Modelica.Fluid.Types.Dynamics.FixedInitial, massDynamics = Modelica.Fluid.Types.Dynamics.FixedInitial, use_N_in = false

  )  annotation(

    Placement(visible = true, transformation(origin = {-40, 8}, extent = {{-10, -10}, {10, 10}}, rotation = 0)));

  Modelica.Fluid.Pipes.StaticPipe pipe(redeclare package Medium = Medium, diameter = 0.3, length = 5)  annotation(

    Placement(visible = true, transformation(origin = {0, 8}, extent = {{-10, -10}, {10, 10}}, rotation = 0)));

equation

  connect(tank.ports[1], pump.port_a) annotation(

    Line(points = {{-42, 54}, {-50, 54}, {-50, 8}, {-50, 8}}, color = {0, 127, 255}));

  connect(pump.port_b, pipe.port_a) annotation(

    Line(points = {{-30, 8}, {-10, 8}, {-10, 8}, {-10, 8}}, color = {0, 127, 255}));

  connect(pipe.port_b, boundary.ports[1]) annotation(

    Line(points = {{10, 8}, {34, 8}, {34, 8}, {34, 8}}, color = {0, 127, 255}));



annotation(

    uses(Modelica(version = "3.2.3")));

end test;

[3] 08:22:04 Translation Error

Internal error IndexReduction.pantelidesIndexReduction failed! System is structurally singular and cannot be handled because the number of unassigned equations is larger than the number of states. Use -d=bltdump to get more information.



[4] 08:22:04 Translation Error

Internal error Transformation Module PFPlusExt index Reduction Method Pantelides failed!



[5] 08:22:04 Translation Error

[C:/OM116/OM64bit/OMCompiler/Compiler/SimCode/SimCodeUtil.mo: 4491:9-4491:59]: Internal error function createStateSetsSets failed.



[6] 08:22:04 Translation Error

[C:/OM116/OM64bit/OMCompiler/Compiler/SimCode/SimCodeUtil.mo: 746:5-746:146]: Internal error function createSimCode failed [Transformation from optimised DAE to simulation code structure failed]