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Oct-12-14 16:45:40
parameter dialog popup in OMEdit is extremely slow for Fluid componenets

I tried to add the information to the ticket as you asked, but the bug tracker will not accept my username and password. Any suggestions?
JF

Oct-11-14 19:21:21
parameter dialog popup in OMEdit is extremely slow for Fluid componenets

I just installed Openmodelica 1.9.1 beta 4 and I am having trouble accessing the parameters for fluid components. Whenever I right click on a fluid component whether in a new model or one of the examples, the program seems to hang and about 5 minutes later, the parameter box opens. If I try to open the parameters on other components, the parameters box pops up instantly. Is this a bug in the software or is there some type of prerequisite that I need to install?
Thanks,
JF

Oct-04-13 23:39:27
Problem with new media model

I created a simple model of two tanks connected by a single static pipe, (see code below). When I use the standard media package "Modelica.Media.Water.StandardOnePhase", the model compiles and simulates. When I try to use the custom media package "dieselfuel" I created below, the model fails to compile. Could someone point me in the right direction to get this to work?

model simple_media_test
  replaceable package Medium = dieselfuel constrainedby Modelica.Media.Interfaces.PartialMedium;
  //replaceable package Medium = Modelica.Media.Water.StandardWaterOnePhase constrainedby Modelica.Media.Interfaces.PartialMedium;
  inner Modelica.Fluid.System system annotation(Placement(visible = true, transformation(origin = {68.1818,77.2727}, extent = {{-10,-10},{10,10}}, rotation = 0)));
  Modelica.Fluid.Vessels.OpenTank tank(redeclare package Medium = Medium, height = 100, crossArea = 10, use_portsData = true, portsData = {Modelica.Fluid.Vessels.BaseClasses.VesselPortsData(diameter = 0.3)}, nPorts = 1) annotation(Placement(visible = true, transformation(origin = {-58.3333,65.9091}, extent = {{-10,-10},{10,10}}, rotation = 0)));
  Modelica.Fluid.Pipes.StaticPipe pipe(redeclare package Medium = Medium, length = 150, diameter = 0.1) annotation(Placement(visible = true, transformation(origin = {-26.0101,23.9899}, extent = {{-10,-10},{10,10}}, rotation = 0)));
  Modelica.Fluid.Vessels.OpenTank opentank1(redeclare package Medium = Medium, height = 100, crossArea = 10, use_portsData = true, level_start = 0, portsData = {Modelica.Fluid.Vessels.BaseClasses.VesselPortsData(diameter = 0.3)}, nPorts = 1) annotation(Placement(visible = true, transformation(origin = {12.4242,64.6969}, extent = {{-10,-10},{10,10}}, rotation = 0)));
  package dieselfuel "Template for media models"
    import Modelica.Media.*;
    extends Modelica.Media.Interfaces.PartialMedium(final mediumName = "Diesel Fuel", final substanceNames = {mediumName}, final singleState = true, final reducedX = true, final fixedX = true, Temperature(min = 273, max = 373, start = 294));
    constant SpecificHeatCapacity cp_const = 1900 "Constant specific heat capacity at constant pressure";
    redeclare model extends BaseProperties(final standardOrderComponents = true) "Base properties of medium"
    equation
      d = 843;
      h = cp_const * T;
      u = h - p / d;
      MM = 0.223;
      R = 8.3144 / MM;
      state.p = p;
      state.T = T;
    end BaseProperties;
    redeclare replaceable record ThermodynamicState "A selection of variables that uniquely defines the thermodynamic state"
      extends Modelica.Icons.Record;
      AbsolutePressure p "Absolute pressure of medium";
      Temperature T "Temperature of medium";
      annotation(Documentation(info = "<html>

</html>"));
    end ThermodynamicState;
    redeclare function extends dynamicViscosity "Return dynamic viscosity"
    algorithm
      eta:=0.0035;
      annotation(Documentation(info = "<html>

</html>"));
    end dynamicViscosity;
    annotation(Documentation(info = "<HTML>
<p>
This package is a <b>template</b> for <b>new medium</b> models. For a new
medium model just make a copy of this package, remove the
\"partial\" keyword from the package and provide
the information that is requested in the comments of the
Modelica source.
</p>
</HTML>"));
  end dieselfuel;
equation
  connect(pipe.port_b,opentank1.ports[1]) annotation(Line(points = {{-16.0101,23.9899},{12.6263,23.9899},{12.6263,54.6969},{12.4242,54.6969}}));
  connect(tank.ports[1],pipe.port_a) annotation(Line(points = {{-58.3333,55.9091},{-57.5758,55.9091},{-57.5758,23.7374},{-36.0101,23.7374},{-36.0101,23.9899}}));
  connect(tank.ports[1],pipe.port_a) annotation(Line(points = {{-58.3333,55.9091},{-57.5758,55.9091},{-57.5758,23.7374},{-35.8586,23.7374},{-35.8586,23.7374}}));
  annotation(Icon(coordinateSystem(extent = {{-100,-100},{100,100}}, preserveAspectRatio = true, initialScale = 0.1, grid = {2,2})), Diagram(coordinateSystem(extent = {{-100,-100},{100,100}}, preserveAspectRatio = true, initialScale = 0.1, grid = {2,2})));
end simple_media_test;

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