Fem: Add support for Elmer static current solver - fixes #11895
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marioalexis
committed by
Max Wilfinger
Max Wilfinger
parent
3f9ad28acf
commit
3d79de4ab3
90
src/Mod/Fem/femsolver/elmer/equations/staticcurrent.py
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90
src/Mod/Fem/femsolver/elmer/equations/staticcurrent.py
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@@ -0,0 +1,90 @@
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# SPDX-License-Identifier: LGPL-2.1-or-later
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# ***************************************************************************
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# * Copyright (c) 2025 Mario Passaglia <mpassaglia[at]cbc.uba.ar> *
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# * *
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# * This file is part of FreeCAD. *
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# * *
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# * FreeCAD is free software: you can redistribute it and/or modify it *
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# * under the terms of the GNU Lesser General Public License as *
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# * published by the Free Software Foundation, either version 2.1 of the *
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# * License, or (at your option) any later version. *
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# * *
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# * FreeCAD is distributed in the hope that it will be useful, but *
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# * WITHOUT ANY WARRANTY; without even the implied warranty of *
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# * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
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# * Lesser General Public License for more details. *
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# * *
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# * You should have received a copy of the GNU Lesser General Public *
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# * License along with FreeCAD. If not, see *
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# * <https://www.gnu.org/licenses/>. *
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# * *
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# ***************************************************************************
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__title__ = "FreeCAD FEM solver Elmer equation object StaticCurrent"
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__author__ = "Mario Passaglia"
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__url__ = "https://www.freecad.org"
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## \addtogroup FEM
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# @{
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from femtools import femutils
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from ... import equationbase
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from . import linear
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def create(doc, name="StaticCurrent"):
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return femutils.createObject(doc, name, Proxy, ViewProxy)
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class Proxy(linear.Proxy, equationbase.StaticCurrentProxy):
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Type = "Fem::EquationElmerStaticCurrent"
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def __init__(self, obj):
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super().__init__(obj)
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obj.addProperty("App::PropertyBool", "CalculateVolumeCurrent", "StaticCurrent", "")
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obj.CalculateVolumeCurrent = True
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obj.addProperty("App::PropertyBool", "CalculateJouleHeating", "StaticCurrent", "")
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obj.addProperty(
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"App::PropertyBool",
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"ConstantWeights",
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"StaticCurrent",
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"Used to turn constant weighting on for the results",
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)
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obj.addProperty(
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"App::PropertyBool",
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"CalculateNodalHeating",
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"StaticCurrent",
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"Calculate nodal heating that may be used to couple the heat equation optimally when using conforming finite element meshes",
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)
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obj.addProperty(
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"App::PropertyBool",
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"HeatSource",
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"StaticCurrent",
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"Use Joule heating as a heat source in combination with heat equation",
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)
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obj.addProperty(
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"App::PropertyBool",
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"PowerControl",
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"StaticCurrent",
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"Apply power control with the desired heating power",
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)
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obj.addProperty(
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"App::PropertyBool",
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"CurrentControl",
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"StaticCurrent",
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"Apply current control with the desired current",
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)
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obj.addProperty(
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"App::PropertyElectricCurrent", "Current", "StaticCurrent", "Current control value"
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)
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obj.addProperty("App::PropertyPower", "Power", "StaticCurrent", "Power control value")
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class ViewProxy(linear.ViewProxy, equationbase.StaticCurrentViewProxy):
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pass
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## @}
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111
src/Mod/Fem/femsolver/elmer/equations/staticcurrent_writer.py
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111
src/Mod/Fem/femsolver/elmer/equations/staticcurrent_writer.py
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@@ -0,0 +1,111 @@
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# SPDX-License-Identifier: LGPL-2.1-or-later
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# ***************************************************************************
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# * Copyright (c) 2025 Mario Passaglia <mpassaglia[at]cbc.uba.ar> *
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# * *
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# * This file is part of FreeCAD. *
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# * *
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# * FreeCAD is free software: you can redistribute it and/or modify it *
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# * under the terms of the GNU Lesser General Public License as *
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# * published by the Free Software Foundation, either version 2.1 of the *
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# * License, or (at your option) any later version. *
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# * *
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# * FreeCAD is distributed in the hope that it will be useful, but *
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# * WITHOUT ANY WARRANTY; without even the implied warranty of *
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# * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
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# * Lesser General Public License for more details. *
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# * *
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# * You should have received a copy of the GNU Lesser General Public *
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# * License along with FreeCAD. If not, see *
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# * <https://www.gnu.org/licenses/>. *
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# * *
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# ***************************************************************************
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__title__ = "FreeCAD FEM StaticCurrent Elmer writer"
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__author__ = "Mario Passaglia"
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__url__ = "https://www.freecad.org"
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## \addtogroup FEM
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# @{
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from FreeCAD import Units
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from .. import sifio
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class SCwriter:
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def __init__(self, writer, solver):
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self.write = writer
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self.solver = solver
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def getStaticCurrentSolver(self, equation):
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# output the equation parameters
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s = self.write.createLinearSolver(equation)
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s["Equation"] = "Stat Current Solver"
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s["Procedure"] = sifio.FileAttr("StatCurrentSolve/StatCurrentSolver")
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s["Variable"] = self.write.getUniqueVarName("Potential")
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s["Variable DOFs"] = 1
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s["Calculate Volume Current"] = equation.CalculateVolumeCurrent
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s["Calculate Joule Heating"] = equation.CalculateJouleHeating
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s["Constant Weights"] = equation.ConstantWeights
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s["Calculate Nodal Heating"] = equation.CalculateNodalHeating
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if equation.PowerControl:
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s["Power Control"] = equation.Power.getValueAs("W").Value
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if equation.CurrentControl:
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s["Current Control"] = equation.Current.getValueAs("A").Value
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s["Exec Solver"] = "Always"
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s["Optimize Bandwidth"] = True
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s["Stabilize"] = equation.Stabilize
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return s
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def handleStaticCurrentConstants(self):
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pass
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def handleStaticCurrentMaterial(self, bodies):
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for obj in self.write.getMember("App::MaterialObject"):
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m = obj.Material
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refs = obj.References[0][1] if obj.References else self.write.getAllBodies()
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for name in (n for n in refs if n in bodies):
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self.write.material(name, "Name", m["Name"])
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if "ElectricalConductivity" in m:
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self.write.material(
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name,
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"Electric Conductivity",
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Units.Quantity(m["ElectricalConductivity"]).getValueAs("S/m").Value,
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)
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def handleStaticCurrentBndConditions(self):
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for obj in self.write.getMember("Fem::ConstraintElectrostaticPotential"):
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if obj.References:
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for name in obj.References[0][1]:
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# output the FreeCAD label as comment
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if obj.Label:
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self.write.boundary(name, "! FreeCAD Name", obj.Label)
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if obj.BoundaryCondition == "Dirichlet":
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if obj.PotentialEnabled:
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self.write.boundary(name, "Current Density BC", False)
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self.write.boundary(
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name, "Potential", obj.Potential.getValueAs("V").Value
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)
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self.write.handled(obj)
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for obj in self.write.getMember("Fem::ConstraintCurrentDensity"):
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if obj.References:
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for name in obj.References[0][1]:
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# output the FreeCAD label as comment
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if obj.Label:
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self.write.boundary(name, "! FreeCAD Name", obj.Label)
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self.write.boundary(name, "Current Density BC", True)
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self.write.boundary(
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name, "Current Density", obj.NormalCurrentDensity.getValueAs("A/m^2").Value
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)
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self.write.handled(obj)
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def handleStaticCurrentBodyForces(self, bodies, equation):
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for name in bodies:
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self.write.bodyForce(name, "Joule Heat", equation.HeatSource)
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## @}
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@@ -57,6 +57,7 @@ from .equations import flux_writer
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from .equations import heat_writer
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from .equations import magnetodynamic_writer as MgDyn_writer
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from .equations import magnetodynamic2D_writer as MgDyn2D_writer
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from .equations import staticcurrent_writer as SC_writer
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_STARTINFO_NAME = "ELMERSOLVER_STARTINFO"
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@@ -109,6 +110,7 @@ class Writer:
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self._handleFlux()
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self._handleMagnetodynamic()
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self._handleMagnetodynamic2D()
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self._handleStaticCurrent()
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self._addOutputSolver()
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self._writeSif()
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@@ -614,6 +616,28 @@ class Writer:
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MgDyn2D.handleMagnetodynamic2DBodyForces(activeIn, equation)
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MgDyn2D.handleMagnetodynamic2DMaterial(activeIn)
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# -------------------------------------------------------------------------------------------
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# StaticCurrent
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def _handleStaticCurrent(self):
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SCW = SC_writer.SCwriter(self, self.solver)
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activeIn = []
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for equation in self.solver.Group:
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if femutils.is_of_type(equation, "Fem::EquationElmerStaticCurrent"):
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if equation.References:
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activeIn = equation.References[0][1]
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else:
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activeIn = self.getAllBodies()
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solverSection = SCW.getStaticCurrentSolver(equation)
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for body in activeIn:
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self._addSolver(body, solverSection)
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SCW.handleStaticCurrentBodyForces(activeIn, equation)
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if activeIn:
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SCW.handleStaticCurrentConstants()
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SCW.handleStaticCurrentBndConditions()
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SCW.handleStaticCurrentMaterial(activeIn)
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# -------------------------------------------------------------------------------------------
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# Solver handling
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@@ -157,4 +157,14 @@ class Magnetodynamic2DViewProxy(BaseViewProxy):
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return ":/icons/FEM_EquationMagnetodynamic2D.svg"
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class StaticCurrentProxy(BaseProxy):
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pass
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class StaticCurrentViewProxy(BaseViewProxy):
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def getIcon(self):
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return ":/icons/FEM_EquationStaticCurrent.svg"
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## @}
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