Strange problem with the fluid library in openmodelica

I wrote a simple code to experiment the use of the PrescribedPump machine in the Fluid package of the standard library. I'm using OpenModelica 1.13.2. I would like to pump some water from a tank to another one, by using a prescribedPump driven with a constant value of 10000.

Here the code:

model PompaPilotata

  package Medium = Modelica.Media.Water.ConstantPropertyLiquidWater;

  inner Modelica.Fluid.System system ;
  Modelica.Fluid.Vessels.OpenTank bacinella1(redeclare package Medium = Medium,
    T_ambient = system.T_ambient, T_start = system.T_ambient, crossArea = 4, energyDynamics = Modelica.Fluid.Types.Dynamics.FixedInitial,
    height = 10, level_start = 2, massDynamics = Modelica.Fluid.Types.Dynamics.FixedInitial, nPorts = 1, p_ambient = system.p_ambient,
    use_HeatTransfer = false, use_T_start = true, use_portsData = false)  ;

  Modelica.Fluid.Vessels.OpenTank bacinella2(redeclare package Medium = Medium,
    T_ambient = system.T_ambient, T_start = system.T_ambient, crossArea = 4, energyDynamics = Modelica.Fluid.Types.Dynamics.FixedInitial,
    height = 10, level_start = 2, massDynamics = Modelica.Fluid.Types.Dynamics.FixedInitial, nPorts = 1, p_ambient = system.p_ambient,
    use_HeatTransfer = false, use_T_start = true, use_portsData = false)  ;

  Modelica.Fluid.Machines.PrescribedPump Pompa(redeclare package Medium = Medium,
    medium(h(stateSelect = StateSelect.default), p(stateSelect = StateSelect.default)),N_nominal = 100, V = 0.1, allowFlowReversal = false,
    checkValve = true, energyDynamics = Modelica.Fluid.Types.Dynamics.DynamicFreeInitial, m_flow_start = 0.0000001,
    massDynamics = Modelica.Fluid.Types.Dynamics.DynamicFreeInitial, nParallel = 1, use_HeatTransfer = false, use_N_in = true) ;

  Modelica.Blocks.Sources.Constant Costante(k = 10000);

  Modelica.Fluid.Pipes.StaticPipe tubo1(redeclare package Medium = Medium,allowFlowReversal = true,
    diameter = 0.1, height_ab = 0, isCircular = true, length = 5, nParallel = 1) ;

  Modelica.Fluid.Pipes.StaticPipe tubo2(redeclare package Medium = Medium,allowFlowReversal = true,
    diameter = 0.1, height_ab = 0, isCircular = true, length = 5, nParallel = 1);

equation
  connect(tubo2.port_b, bacinella2.ports[1]);
  connect(Pompa.port_b, tubo2.port_a);
  connect(tubo1.port_b, Pompa.port_a);
  connect(bacinella1.ports[1], tubo1.port_a);
  connect(Costante.y, Pompa.N_in);
end PompaPilotata;

I get this error message from the compiler:

In file included from C:/OpenModelica1.13.264bit/include/omc/c/util/modelica_string.h:38:0, from C:/OpenModelica1.13.264bit/include/omc/c/openmodelica_func.h:52, from PompaPilotata_model.h:6, from PompaPilotata_06inz.c:2: PompaPilotata_06inz.c: In function 'PompaPilotata_eqFunction_237': C:/OpenModelica1.13.264bit/include/omc/c/meta/meta_modelica_data.h:231:21: error: incompatible type for argument 2 of 'omc_Modelica_Fluid_Machines_PrescribedPump$Pompa_flowCharacteristic' #define mmc_mk_real mmc_mk_rcon ^ C:/OpenModelica1.13.264bit/include/omc/c/meta/meta_modelica_data.h:225:45: note: in definition of macro 'mmc_unbox_real' #define mmc_unbox_real(X) mmc_prim_get_real(X) ^ PompaPilotata_06inz.c:3005:139: note: in expansion of macro 'mmc_mk_real' data->simulationInfo->realParameter[7] = mmc_unbox_real(omc_Modelica_Fluid_Machines_PrescribedPump$Pompa_flowCharacteristic(threadData, mmc_mk_real(data->simulationInfo->realParameter[5]))); ^ In file included from PompaPilotata_model.h:23:0, from PompaPilotata_06inz.c:2: PompaPilotata_functions.h:223:15: note: expected 'modelica_real {aka double}' but argument is of type 'void *' modelica_real omc_Modelica_Fluid_Machines_PrescribedPump$Pompa_flowCharacteristic(threadData_t threadData, modelica_real _V_flow); ^ : recipe for target 'PompaPilotata_06inz.o' failed \tools\msys\mingw64\bin\mingw32-make: [PompaPilotata_06inz.o] Error 1 \tools\msys\mingw64\bin\mingw32-make: * Waiting for unfinished jobs.... Compilation process failed. Exited with code 2.

Someone can explain me what does it mean and how to fix it? Thanks

Solution

The model does not work in Dymola eiter, but it gives the following hint:

Function Pompa.flowCharacteristic_Unique7 is neither external nor has an algorithm. It should have been redeclared.

Therefore redeclaring the function for the flowCharacteristic should help. Copying this part from Modelica.Fluid.Examples.PumpingSystem and reducing the values for V_flow_nominal by a factor of 1000 (which is a wild guess) gives:

  Modelica.Fluid.Machines.PrescribedPump Pompa(redeclare package Medium = Medium,
    redeclare function flowCharacteristic = Modelica.Fluid.Machines.BaseClasses.PumpCharacteristics.quadraticFlow (V_flow_nominal={0.001,0.0025,0.005}, head_nominal={100,60,0}),
    medium(h(stateSelect = StateSelect.default), p(stateSelect = StateSelect.default)),N_nominal = 100, V = 0.1, allowFlowReversal = false,
    checkValve = true, energyDynamics = Modelica.Fluid.Types.Dynamics.DynamicFreeInitial, m_flow_start = 0.0000001,
    massDynamics = Modelica.Fluid.Types.Dynamics.DynamicFreeInitial, nParallel = 1, use_HeatTransfer = false, use_N_in = true);

With the second line actually being added.