Modelica 代码中的警告 "use Modelica.Icons.Package instead"

Question

我在 Modelica 代码中遇到警告 use Modelica.Icons.Package instead。看来我使用了错误的图标，所以该工具选择 use Modelica.Icons.Package instead.

所以我检查了警告消息中显示的代码，这个组件中没有图标，所以为什么会出现这个警告？

以下截图显示了错误组件的警告信息和Modelica代码。

model HeatTransferTwoPhase "Heat transfer model for two-phase correlations"
  replaceable package Medium =
    Modelon.Media.PreDefined.TwoPhase.WaterIF97                            constrainedby 
    Modelon.Media.Interfaces.TwoPhaseMedium                                                             annotation(Dialog(group="Medium"),choicesAllMatching);
  replaceable model HeatTransfer =
      ThermalPower.SubComponents.HeatTransfer.Pipes.KcZero constrainedby 
    ThermalPower.SubComponents.HeatTransfer.Pipes.Interfaces.Tubes                                                                      annotation(Dialog(group="Heat Transfer model"),choicesAllMatching);
  parameter Integer n(min=1) "Total discretization number";
  parameter Modelica.SIunits.Area[n] A "Flow cross sectional area";
  parameter Modelica.SIunits.Area[n] A_heat
    "Heat transfer area (per channel)";
  parameter Modelica.SIunits.Length L
    "Channel length (total length in case of discretized channel)";
  parameter Modelica.SIunits.Length[n] Dhyd "Hydraulic diameter";
  parameter Real[n] n_channels(each min=1.0) = fill(1.0, n)
    "Number of parallel channels";
  parameter Real F_user = 1.0
    "user defined enhancement factor for heat transfer"
      annotation (Dialog(tab="Advanced"));
  parameter Modelica.SIunits.Pressure pcrit = Medium.criticalPressure
    "Critical pressure of fluid for boiling correlations";
    parameter Boolean TubeOrientationHorizontal=true
    "Horizontal tubes: true; vertical tubes: false"
    annotation (Dialog(group="Geometry"), Evaluate=true);
  parameter Boolean staggeredTubes=false
    "Staggered or inline tube arrangement"
    annotation (Dialog(group="Geometry"), Evaluate=true);
  parameter Integer numberOfTubeRows(min=1)=1 "Number of tube rows" annotation (Dialog(group="Geometry"), Evaluate=true);

  input Modelica.SIunits.MassFlowRate m_flow[n] "mass flow" annotation(Dialog(group="Inputs"));

  input Modelica.SIunits.Pressure p[n] "Pressure" annotation(Dialog(group="Inputs"));
  input Modelica.SIunits.SpecificHeatCapacity cp[n] "specific heat capacity" annotation(Dialog(group="Inputs"));
  input Modelica.SIunits.ReynoldsNumber Re[n] "Reynolds number" annotation(Dialog(group="Inputs"));
  input Modelica.SIunits.DynamicViscosity eta[n] "dynamic viscosity" annotation(Dialog(group="Inputs"));
  input Modelica.SIunits.ThermalConductivity lam[n] "thermal conductivity" annotation(Dialog(group="Inputs"));
  input Modelica.SIunits.FroudeNumber Fr[n] "Froude number" annotation(Dialog(group="Inputs"));
  input Modelica.SIunits.ReynoldsNumber Re_liq[n]
    "Reynolds number, boiling curve" annotation(Dialog(group="Inputs"));
  input Medium.PhaseBoundaryProps sat[n] "saturation properties" annotation(Dialog(group="Inputs"));
  input Real[n] twoPhaseFraction
    "fraction of the overall control volume with two-phase conditions"  annotation(Dialog(group="Inputs"));

   HeatTransfer heatTransfer(
     redeclare package Medium=Medium,
     TubeOrientationHorizontal=TubeOrientationHorizontal,
     staggeredTubes=staggeredTubes,
     numberOfTubeRows=numberOfTubeRows,
     n=n,
     A=A,
     A_heat=A_heat,
     L=L,
     Dhyd=Dhyd,
     F_user=F_user,
     m_flow=m_flow,
     T=q_fluid.T,
     T_wall=q_wall.T,
     p=p,
     cp=cp,
     Re=Re,
     eta=eta,
     lam=lam,
     Fr=Fr,
     Re_liq=Re_liq,
     sat=sat,
     twoPhaseFraction=twoPhaseFraction,
     Q_s=q_wall.Q_flow);

  Thermal.Interfaces.HeatPort_a q_wall[n]
                                      annotation (Placement(
        transformation(extent={{10,88},{-10,108}}, rotation=0),
        iconTransformation(extent={{10,88},{-10,108}})));
  Thermal.Interfaces.HeatPort_a q_fluid[n]         annotation (Placement(
        transformation(extent={{10,-112},{-10,-92}},
                                                   rotation=0),
        iconTransformation(extent={{10,-112},{-10,-92}})));
equation 
  for i in 1:n loop
    q_wall[i].Q_flow+q_fluid[i].Q_flow=0;
    q_wall[i].Q_flow = heatTransfer.alpha[i] * n_channels[i] * A_heat[i] * (q_wall[i].T - q_fluid[i].T);
  end for;

  annotation (Icon(coordinateSystem(preserveAspectRatio=false, extent={{-100,-100},
            {100,100}}), graphics={      Line(
          points={{0,70},{0,40},{-20,30},{20,10},{-20,-10},{20,-30},{0,-40},{0,-70}},
          color={255,0,0},
          thickness=0.5),          Polygon(
          points={{-15,-65},{15,-65},{0,-90},{-15,-65}},
          lineColor={255,0,0},
          fillColor={255,0,0},
          fillPattern=FillPattern.Solid),Polygon(
          points={{-15,65},{15,65},{0,90},{-15,65}},
          lineColor={255,0,0},
          fillColor={255,0,0},
          fillPattern=FillPattern.Solid)}), Diagram(coordinateSystem(
          preserveAspectRatio=false, extent={{-100,-100},{100,100}}), graphics),
    Documentation(revisions="<html>
<hr><p><font color=\"#E72614\"><b>Copyright &copy; 2004-2019, MODELON AB</b></font> <font color=\"#AFAFAF\"><br /><br /> The use of this software component is regulated by the licensing conditions for Modelon Libraries. <br /> This copyright notice must, unaltered, accompany all components that are derived from, copied from, <br /> or by other means have their origin from any Modelon Library. </font></p>
</html>",
        info="<html>
<h4>Description</h4>
<p>Generic heat transfer model where the heat transfer correlation is replaceable and is compatible with heat-correlations for two-phase correlations.</p>
<h4>Parametrization</h4>
<p>This model is parametrized by it&apos;s geometry and operating point. The operating point and  flow properties are specified as inputs and can therefore be variables that change with time.</p>
<h4>Assumptions</h4>
<ul>
<li>No heat storage</li>
</ul>
</html>"));
end HeatTransferTwoPhase;

Answer 1

感谢分享。这将在 Modelon 的下一版热功率库中更新。

br Per-Ola Larsson，Modelon 的 Thermofluid 团队