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* Copyright (c) 2013 Jan Rheinländer *
* <jrheinlaender@users.sourceforge.net> *
* *
* This file is part of the FreeCAD CAx development system. *
* *
* This library is free software; you can redistribute it and/or *
* modify it under the terms of the GNU Library General Public *
* License as published by the Free Software Foundation; either *
* version 2 of the License, or (at your option) any later version. *
* *
* This library is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU Library General Public License for more details. *
* *
* You should have received a copy of the GNU Library General Public *
* License along with this library; see the file COPYING.LIB. If not, *
* write to the Free Software Foundation, Inc., 59 Temple Place, *
* Suite 330, Boston, MA 02111-1307, USA *
* *
***************************************************************************/
#include <Precision.hxx>
#include <Base/Console.h>
#include "FemConstraintFluidBoundary.h"
using namespace Fem;
PROPERTY_SOURCE(Fem::ConstraintFluidBoundary, Fem::Constraint)
// clang-format off
// see forum topic: https://forum.freecad.org/viewtopic.php?&p=407901
// also defined in TaskFemConstraintFluidBoundary.cpp and FoamCaseBuilder/BasicBuilder.py, update simultaneously
// the second (index 1) item is the default enum, as index 0 causes compiling error
static const char* BoundaryTypes[] = {"inlet","wall","outlet","interface","freestream", nullptr};
static const char* WallSubtypes[] = {"unspecific", "fixed", "slip", "partialSlip", "moving", nullptr};
static const char* InletSubtypes[] = {"unspecific","totalPressure","uniformVelocity","volumetricFlowRate","massFlowRate", nullptr};
static const char* OutletSubtypes[] = {"unspecific","totalPressure","staticPressure","uniformVelocity", "outFlow", nullptr};
static const char* InterfaceSubtypes[] = {"unspecific","symmetry","wedge","cyclic","empty", nullptr};
static const char* FreestreamSubtypes[] = {"unspecific", "freestream",nullptr};
// see Ansys fluet manual: Turbulence Specification method, if not specified, solver will guess a value based e.g. 0.05 for inlet length geometry",
static const char* TurbulenceSpecifications[] = {"intensity&DissipationRate", "intensity&LengthScale","intensity&ViscosityRatio","intensity&HydraulicDiameter",nullptr};
/* only used in TaskFemConstraintFluidBoundary.cpp */
// activate the heat transfer and radiation model in Solver object explorer
// also defined in FoamCaseBuilder/HeatTransferBuilder.py, update simultaneously, heatFlux is not a standard OpenFOAM patch type
static const char* ThermalBoundaryTypes[] = {"fixedValue","zeroGradient", "fixedGradient", "mixed", "heatFlux", "HTC","coupled", nullptr};
/* only used in TaskFemConstraintFluidBoundary.cpp
static const char* ThermalBoundaryHelpTexts[] = {"fixed Temperature [K]", "no heat transfer ()", "fixed value heat flux [K/m]",
"mixed fixedGradient and fixedValue", "fixed heat flux [W/m2]", "Heat transfer coeff [W/(M2)/K]", "conjugate heat transfer with solid", NULL};
*/
// clang-format on
ConstraintFluidBoundary::ConstraintFluidBoundary()
{
// clang-format off
/// momentum boundary: pressure and velocity
ADD_PROPERTY_TYPE(BoundaryType,(1),"FluidBoundary",(App::PropertyType)(App::Prop_None),
"Basic boundary type like inlet, wall, outlet,etc");
BoundaryType.setEnums(BoundaryTypes);
ADD_PROPERTY_TYPE(Subtype,(1),"FluidBoundary",(App::PropertyType)(App::Prop_None),
"Subtype defines more specific boundary types");
Subtype.setEnums(WallSubtypes);
ADD_PROPERTY_TYPE(BoundaryValue,(0.0),"FluidBoundary",(App::PropertyType)(App::Prop_None),
"Scaler value for the specific value subtype, like pressure, velocity magnitude");
/// Direction should be allowed to edit in property editor, if no edge is available in CAD model
ADD_PROPERTY_TYPE(Direction,(nullptr),"FluidBoundary",(App::PropertyType)(App::Prop_None),
"Vector direction of BoundaryValue");
ADD_PROPERTY_TYPE(Reversed,(0),"FluidBoundary",(App::PropertyType)(App::Prop_ReadOnly|App::Prop_Output),
"To distinguish inlet (flow outward from solid) or outlet boundary condition");
/// turbulence model setup for boundary
ADD_PROPERTY_TYPE(TurbulenceSpecification,(1),"Turbulence",(App::PropertyType)(App::Prop_None),
"Method to specify burbulence magnitude on the boundary");
TurbulenceSpecification.setEnums(TurbulenceSpecifications); // Turbulence Specification Method
ADD_PROPERTY_TYPE(TurbulentIntensityValue,(0.0),"Turbulence",(App::PropertyType)(App::Prop_None),
"Scaler value for Turbulent intensity etc");
ADD_PROPERTY_TYPE(TurbulentLengthValue,(0.0),"Turbulence",(App::PropertyType)(App::Prop_None),
"Scaler value for Turbulent length scale, hydraulic diameter etc");
/// consider using the newly added Fem::ConstraintTemperature, but it is too hard to export the settings
ADD_PROPERTY_TYPE(ThermalBoundaryType,(1),"HeatTransfer",(App::PropertyType)(App::Prop_None),
"Thermal boundary type");
ThermalBoundaryType.setEnums(ThermalBoundaryTypes);
ADD_PROPERTY_TYPE(TemperatureValue,(0.0),"HeatTransfer",(App::PropertyType)(App::Prop_None),
"Temperature value for thermal boundary condition");
ADD_PROPERTY_TYPE(HeatFluxValue,(0.0),"HeatTransfer",(App::PropertyType)(App::Prop_None),
"Heat flux value for thermal boundary condition");
ADD_PROPERTY_TYPE(HTCoeffValue,(0.0),"HeatTransfer",(App::PropertyType)(App::Prop_None),
"Heat transfer coefficient for convective boundary condition");
ADD_PROPERTY_TYPE(DirectionVector,(Base::Vector3d(0,0,1)),"FluidBoundary",App::PropertyType(App::Prop_ReadOnly|App::Prop_Output),
"Direction of arrows");
naturalDirectionVector = Base::Vector3d(0,0,0); // by default use the null vector to indicate an invalid value
// clang-format on
}
App::DocumentObjectExecReturn* ConstraintFluidBoundary::execute()
{
return Constraint::execute();
}
void ConstraintFluidBoundary::onChanged(const App::Property* prop)
{
// Note: If we call this at the end, then the arrows are not oriented correctly initially
// because the NormalDirection has not been calculated yet
Constraint::onChanged(prop);
if (prop == &BoundaryType) {
std::string boundaryType = BoundaryType.getValueAsString();
if (boundaryType == "wall") {
Subtype.setEnums(WallSubtypes);
}
else if (boundaryType == "interface") {
Subtype.setEnums(InterfaceSubtypes);
}
else if (boundaryType == "freestream") {
Subtype.setEnums(FreestreamSubtypes);
}
else if (boundaryType == "inlet") {
Subtype.setEnums(InletSubtypes);
}
else if (boundaryType == "outlet") {
Subtype.setEnums(OutletSubtypes);
}
else {
Base::Console().message(boundaryType.c_str());
Base::Console().message(" Error: this boundaryType is not defined\n");
}
// must set a default (0 or 1) as freestream has only 2 subtypes
Subtype.setValue(1);
// need to trigger ViewProvider::updateData() for redraw in 3D view after this method
}
else if (prop == &Direction) {
Base::Vector3d direction = getDirection(Direction);
// if Direct has no link provided return Base::Vector3d(0,0,0);
if (direction.Length() < Precision::Confusion()) {
return;
}
naturalDirectionVector = direction;
if (Reversed.getValue()) {
direction = -direction;
}
DirectionVector.setValue(direction);
}
else if (prop == &Reversed) {
// if the direction is invalid try to compute it again
if (naturalDirectionVector.Length() < Precision::Confusion()) {
naturalDirectionVector = getDirection(Direction);
}
if (naturalDirectionVector.Length() >= Precision::Confusion()) {
if (Reversed.getValue() && (DirectionVector.getValue() == naturalDirectionVector)) {
DirectionVector.setValue(-naturalDirectionVector);
}
else if (!Reversed.getValue() && (DirectionVector.getValue() != naturalDirectionVector)) {
DirectionVector.setValue(naturalDirectionVector);
}
}
}
else if (prop == &NormalDirection) {
// Set a default direction if no direction reference has been given
if (!Direction.getValue()) {
Base::Vector3d direction = NormalDirection.getValue();
if (Reversed.getValue()) {
direction = -direction;
}
DirectionVector.setValue(direction);
naturalDirectionVector = direction;
}
}
}
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