[FEM] add initial pressure constraint (#7364)

* [FEM] add initial pressure constraint - this is needed for fluids
FreeCAD · Aug 14, 2022 · 27f50ad · 27f50ad
1 parent 32d7663
commit 27f50ad
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diff --git a/src/Mod/Fem/CMakeLists.txt b/src/Mod/Fem/CMakeLists.txt
@@ -172,6 +172,7 @@ SET(FemObjects_SRCS
     femobjects/constraint_electrostaticpotential.py
     femobjects/constraint_flowvelocity.py
     femobjects/constraint_initialflowvelocity.py
+    femobjects/constraint_initialpressure.py
     femobjects/constraint_sectionprint.py
     femobjects/constraint_selfweight.py
     femobjects/constraint_tie.py
@@ -566,6 +567,7 @@ SET(FemGuiTaskPanels_SRCS
     femtaskpanels/task_constraint_electrostaticpotential.py
     femtaskpanels/task_constraint_flowvelocity.py
     femtaskpanels/task_constraint_initialflowvelocity.py
+    femtaskpanels/task_constraint_initialpressure.py
     femtaskpanels/task_constraint_sectionprint.py
     femtaskpanels/task_constraint_tie.py
     femtaskpanels/task_element_fluid1D.py
@@ -603,6 +605,7 @@ SET(FemGuiViewProvider_SRCS
     femviewprovider/view_constraint_electrostaticpotential.py
     femviewprovider/view_constraint_flowvelocity.py
     femviewprovider/view_constraint_initialflowvelocity.py
+    femviewprovider/view_constraint_initialpressure.py
     femviewprovider/view_constraint_sectionprint.py
     femviewprovider/view_constraint_selfweight.py
     femviewprovider/view_constraint_tie.py

diff --git a/src/Mod/Fem/Gui/CMakeLists.txt b/src/Mod/Fem/Gui/CMakeLists.txt
@@ -394,6 +394,7 @@ SET(FemGuiPythonUI_SRCS
     Resources/ui/ElementRotation1D.ui
     Resources/ui/FlowVelocity.ui
     Resources/ui/InitialFlowVelocity.ui
+    Resources/ui/InitialPressure.ui
     Resources/ui/Material.ui
     Resources/ui/MaterialReinforcement.ui
     Resources/ui/MeshBoundaryLayer.ui

diff --git a/src/Mod/Fem/Gui/Resources/Fem.qrc b/src/Mod/Fem/Gui/Resources/Fem.qrc
@@ -22,6 +22,7 @@
         <file>icons/FEM_ConstraintGear.svg</file>
         <file>icons/FEM_ConstraintHeatflux.svg</file>
         <file>icons/FEM_ConstraintInitialFlowVelocity.svg</file>
+        <file>icons/FEM_ConstraintInitialPressure.svg</file>
         <file>icons/FEM_ConstraintInitialTemperature.svg</file>
         <file>icons/FEM_ConstraintPlaneRotation.svg</file>
         <file>icons/FEM_ConstraintPressure.svg</file>
@@ -161,6 +162,7 @@
         <file>ui/ElementRotation1D.ui</file>
         <file>ui/FlowVelocity.ui</file>
         <file>ui/InitialFlowVelocity.ui</file>
+        <file>ui/InitialPressure.ui</file>
         <file>ui/Material.ui</file>
         <file>ui/MaterialReinforcement.ui</file>
         <file>ui/MeshBoundaryLayer.ui</file>

diff --git a/src/Mod/Fem/Gui/Resources/icons/FEM_ConstraintInitialPressure.svg b/src/Mod/Fem/Gui/Resources/icons/FEM_ConstraintInitialPressure.svg
diff --git a/src/Mod/Fem/Gui/Resources/ui/InitialPressure.ui b/src/Mod/Fem/Gui/Resources/ui/InitialPressure.ui
@@ -0,0 +1,82 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>Form</class>
+ <widget class="QWidget" name="Form">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>350</width>
+    <height>40</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Constraint Properties</string>
+  </property>
+  <layout class="QHBoxLayout" name="horizontalLayout">
+   <item>
+    <widget class="QLabel" name="pressureLbl">
+     <property name="text">
+      <string>Pressure:</string>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <spacer name="horizontalSpacer">
+     <property name="orientation">
+      <enum>Qt::Horizontal</enum>
+     </property>
+     <property name="sizeHint" stdset="0">
+      <size>
+       <width>130</width>
+       <height>19</height>
+      </size>
+     </property>
+    </spacer>
+   </item>
+   <item>
+    <widget class="Gui::QuantitySpinBox" name="pressureQSB">
+     <property name="enabled">
+      <bool>true</bool>
+     </property>
+     <property name="minimumSize">
+      <size>
+       <width>100</width>
+       <height>20</height>
+      </size>
+     </property>
+     <property name="alignment">
+      <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+     </property>
+     <property name="keyboardTracking">
+      <bool>true</bool>
+     </property>
+     <property name="unit" stdset="0">
+      <string notr="true">kPa</string>
+     </property>
+     <property name="minimum">
+      <double>-1000000000000000000000.000000000000000</double>
+     </property>
+     <property name="maximum">
+      <double>1000000000000000000000.000000000000000</double>
+     </property>
+     <property name="singleStep">
+      <double>50.000000000000000</double>
+     </property>
+     <property name="value">
+      <double>100.000000000000000</double>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <customwidgets>
+  <customwidget>
+   <class>Gui::QuantitySpinBox</class>
+   <extends>QWidget</extends>
+   <header>Gui/QuantitySpinBox.h</header>
+  </customwidget>
+ </customwidgets>
+ <resources/>
+ <connections/>
+</ui>
diff --git a/src/Mod/Fem/Gui/Workbench.cpp b/src/Mod/Fem/Gui/Workbench.cpp
@@ -144,6 +144,7 @@ Gui::ToolBarItem* Workbench::setupToolBars() const
         << "Separator"
         << "FEM_ConstraintForce"
         << "FEM_ConstraintPressure"
+        << "FEM_ConstraintInitialPressure"
         << "FEM_ConstraintCentrif"
         << "FEM_ConstraintSelfWeight";
 
@@ -272,6 +273,7 @@ Gui::MenuItem* Workbench::setupMenuBar() const
         << "Separator"
         << "FEM_ConstraintForce"
         << "FEM_ConstraintPressure"
+        << "FEM_ConstraintInitialPressure"
         << "FEM_ConstraintCentrif"
         << "FEM_ConstraintSelfWeight";
 

diff --git a/src/Mod/Fem/ObjectsFem.py b/src/Mod/Fem/ObjectsFem.py
@@ -228,6 +228,21 @@ def makeConstraintInitialFlowVelocity(
     return obj
 
 
+def makeConstraintInitialPressure(
+    doc,
+    name="ConstraintInitialPressure"
+):
+    """makeConstraintInitialPressure(document, [name]):
+    makes a Fem ConstraintInitialPressure object"""
+    obj = doc.addObject("Fem::ConstraintPython", name)
+    from femobjects import constraint_initialpressure
+    constraint_initialpressure.ConstraintInitialPressure(obj)
+    if FreeCAD.GuiUp:
+        from femviewprovider import view_constraint_initialpressure
+        view_constraint_initialpressure.VPConstraintInitialPressure(obj.ViewObject)
+    return obj
+
+
 def makeConstraintInitialTemperature(
     doc,
     name="ConstraintInitialTemperature"

diff --git a/src/Mod/Fem/femcommands/commands.py b/src/Mod/Fem/femcommands/commands.py
@@ -258,6 +258,23 @@ def __init__(self):
         self.do_activated = "add_obj_on_gui_set_edit"
 
 
+class _ConstraintInitialPressure(CommandManager):
+    "The FEM_ConstraintInitialPressure command definition"
+
+    def __init__(self):
+        super(_ConstraintInitialPressure, self).__init__()
+        self.menutext = Qt.QT_TRANSLATE_NOOP(
+            "FEM_ConstraintInitialPressure",
+            "Constraint initial pressure"
+        )
+        self.tooltip = Qt.QT_TRANSLATE_NOOP(
+            "FEM_ConstraintInitialPressure",
+            "Creates a FEM constraint initial pressure"
+        )
+        self.is_active = "with_analysis"
+        self.do_activated = "add_obj_on_gui_set_edit"
+
+
 class _ConstraintSectionPrint(CommandManager):
     "The FEM_ConstraintSectionPrint command definition"
 
@@ -1104,6 +1121,10 @@ def __init__(self):
     "FEM_ConstraintInitialFlowVelocity",
     _ConstraintInitialFlowVelocity()
 )
+FreeCADGui.addCommand(
+    "FEM_ConstraintInitialPressure",
+    _ConstraintInitialPressure()
+)
 FreeCADGui.addCommand(
     "FEM_ConstraintSectionPrint",
     _ConstraintSectionPrint()