258 lines
9.3 KiB
Python
258 lines
9.3 KiB
Python
# ***************************************************************************
|
|
# * Copyright (c) 2019 Bernd Hahnebach <bernd@bimstatik.org> *
|
|
# * *
|
|
# * This file is part of the FreeCAD CAx development system. *
|
|
# * *
|
|
# * This program is free software; you can redistribute it and/or modify *
|
|
# * it under the terms of the GNU Lesser General Public License (LGPL) *
|
|
# * as published by the Free Software Foundation; either version 2 of *
|
|
# * the License, or (at your option) any later version. *
|
|
# * for detail see the LICENCE text file. *
|
|
# * *
|
|
# * FreeCAD 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 FreeCAD; if not, write to the Free Software *
|
|
# * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 *
|
|
# * USA *
|
|
# * *
|
|
# ***************************************************************************
|
|
|
|
|
|
# to run the example use:
|
|
"""
|
|
from femexamples.thermomech_flow1d import setup
|
|
setup()
|
|
|
|
"""
|
|
|
|
|
|
import FreeCAD
|
|
import ObjectsFem
|
|
import Fem
|
|
|
|
mesh_name = "Mesh" # needs to be Mesh to work with unit tests
|
|
|
|
|
|
def init_doc(doc=None):
|
|
if doc is None:
|
|
doc = FreeCAD.newDocument()
|
|
return doc
|
|
|
|
|
|
def setup(doc=None, solvertype="ccxtools"):
|
|
# setup model
|
|
|
|
if doc is None:
|
|
doc = init_doc()
|
|
|
|
p1 = FreeCAD.Vector(0, 0, 50)
|
|
p2 = FreeCAD.Vector(0, 0, -50)
|
|
p3 = FreeCAD.Vector(0, 0, -4300)
|
|
p4 = FreeCAD.Vector(4950, 0, -4300)
|
|
p5 = FreeCAD.Vector(5000, 0, -4300)
|
|
p6 = FreeCAD.Vector(8535.53, 0, -7835.53)
|
|
p7 = FreeCAD.Vector(8569.88, 0, -7870.88)
|
|
p8 = FreeCAD.Vector(12105.41, 0, -11406.41)
|
|
p9 = FreeCAD.Vector(12140.76, 0, -11441.76)
|
|
p10 = FreeCAD.Vector(13908.53, 0, -13209.53)
|
|
p11 = FreeCAD.Vector(13943.88, 0, -13244.88)
|
|
p12 = FreeCAD.Vector(15046.97, 0, -14347.97)
|
|
p13 = FreeCAD.Vector(15046.97, 0, -7947.97)
|
|
p14 = FreeCAD.Vector(15046.97, 0, -7847.97)
|
|
p15 = FreeCAD.Vector(0, 0, 0)
|
|
p16 = FreeCAD.Vector(0, 0, -2175)
|
|
p17 = FreeCAD.Vector(2475, 0, -4300)
|
|
p18 = FreeCAD.Vector(4975, 0, -4300)
|
|
p19 = FreeCAD.Vector(6767.765, 0, -6067.765)
|
|
p20 = FreeCAD.Vector(8552.705, 0, -7853.205)
|
|
p21 = FreeCAD.Vector(10337.645, 0, -9638.645)
|
|
p22 = FreeCAD.Vector(12123.085, 0, -11424.085)
|
|
p23 = FreeCAD.Vector(13024.645, 0, -12325.645)
|
|
p24 = FreeCAD.Vector(13926.205, 0, -13227.205)
|
|
p25 = FreeCAD.Vector(14495.425, 0, -13796.425)
|
|
p26 = FreeCAD.Vector(15046.97, 0, -11147.97)
|
|
p27 = FreeCAD.Vector(15046.97, 0, -7897.97)
|
|
points = [
|
|
p1, p2, p3, p4, p5, p6, p7, p8, p9, p10,
|
|
p11, p12, p13, p14, p15, p16, p17, p18, p19, p20,
|
|
p21, p22, p23, p24, p25, p26, p27
|
|
]
|
|
from Draft import makeWire
|
|
line = makeWire(
|
|
points,
|
|
closed=False,
|
|
face=False,
|
|
support=None
|
|
)
|
|
doc.recompute()
|
|
|
|
if FreeCAD.GuiUp:
|
|
import FreeCADGui
|
|
FreeCADGui.ActiveDocument.activeView().viewAxonometric()
|
|
FreeCADGui.SendMsgToActiveView("ViewFit")
|
|
|
|
# analysis
|
|
analysis = ObjectsFem.makeAnalysis(doc, "Analysis")
|
|
|
|
# solver
|
|
if solvertype == "calculix":
|
|
solver_object = analysis.addObject(
|
|
ObjectsFem.makeSolverCalculix(doc, "SolverCalculiX")
|
|
)[0]
|
|
elif solvertype == "ccxtools":
|
|
solver_object = analysis.addObject(
|
|
ObjectsFem.makeSolverCalculixCcxTools(doc, "CalculiXccxTools") # CalculiX
|
|
)[0]
|
|
solver_object.WorkingDir = u""
|
|
if solvertype == "calculix" or solvertype == "ccxtools":
|
|
solver_object.SplitInputWriter = False
|
|
solver_object.AnalysisType = "thermomech"
|
|
solver_object.GeometricalNonlinearity = "linear"
|
|
solver_object.ThermoMechSteadyState = True
|
|
solver_object.MatrixSolverType = "default"
|
|
solver_object.IterationsThermoMechMaximum = 2000
|
|
solver_object.IterationsControlParameterTimeUse = False
|
|
|
|
# material
|
|
material_object = analysis.addObject(
|
|
ObjectsFem.makeMaterialFluid(doc, "FluidMaterial")
|
|
)[0]
|
|
mat = material_object.Material
|
|
mat["Name"] = "Water"
|
|
mat["Density"] = "998 kg/m^3"
|
|
mat["SpecificHeat"] = "4.182 J/kg/K"
|
|
mat["DynamicViscosity"] = "1.003e-3 kg/m/s"
|
|
mat["VolumetricThermalExpansionCoefficient"] = "2.07e-4 m/m/K"
|
|
mat["ThermalConductivity"] = "0.591 W/m/K"
|
|
material_object.Material = mat
|
|
|
|
inlet = analysis.addObject(
|
|
ObjectsFem.makeElementFluid1D(doc, "ElementFluid1D")
|
|
)[0]
|
|
inlet.SectionType = "Liquid"
|
|
inlet.LiquidSectionType = "PIPE INLET"
|
|
inlet.InletPressure = 0.1
|
|
inlet.References = [(line, "Edge1")]
|
|
|
|
entrance = analysis.addObject(
|
|
ObjectsFem.makeElementFluid1D(doc, "ElementFluid1D")
|
|
)[0]
|
|
entrance.SectionType = "Liquid"
|
|
entrance.LiquidSectionType = "PIPE ENTRANCE"
|
|
entrance.EntrancePipeArea = 31416.00
|
|
entrance.EntranceArea = 25133.00
|
|
entrance.References = [(line, "Edge2")]
|
|
|
|
manning1 = analysis.addObject(
|
|
ObjectsFem.makeElementFluid1D(doc, "ElementFluid1D")
|
|
)[0]
|
|
manning1.SectionType = "Liquid"
|
|
manning1.LiquidSectionType = "PIPE MANNING"
|
|
manning1.ManningArea = 31416
|
|
manning1.ManningRadius = 50
|
|
manning1.ManningCoefficient = 0.002
|
|
manning1.References = [(line, "Edge3"), (line, "Edge5")]
|
|
|
|
bend = analysis.addObject(
|
|
ObjectsFem.makeElementFluid1D(doc, "ElementFluid1D")
|
|
)[0]
|
|
bend.SectionType = "Liquid"
|
|
bend.LiquidSectionType = "PIPE BEND"
|
|
bend.BendPipeArea = 31416
|
|
bend.BendRadiusDiameter = 1.5
|
|
bend.BendAngle = 45
|
|
bend.BendLossCoefficient = 0.4
|
|
bend.References = [(line, "Edge4")]
|
|
|
|
enlargement1 = analysis.addObject(
|
|
ObjectsFem.makeElementFluid1D(doc, "ElementFluid1D")
|
|
)[0]
|
|
enlargement1.SectionType = "Liquid"
|
|
enlargement1.LiquidSectionType = "PIPE ENLARGEMENT"
|
|
enlargement1.EnlargeArea1 = 31416.00
|
|
enlargement1.EnlargeArea2 = 70686.00
|
|
enlargement1.References = [(line, "Edge6")]
|
|
|
|
manning2 = analysis.addObject(
|
|
ObjectsFem.makeElementFluid1D(doc, "ElementFluid1D")
|
|
)[0]
|
|
manning2.SectionType = "Liquid"
|
|
manning2.LiquidSectionType = "PIPE MANNING"
|
|
manning2.ManningArea = 70686.00
|
|
manning2.ManningRadius = 75
|
|
manning2.ManningCoefficient = 0.002
|
|
manning2.References = [(line, "Edge7")]
|
|
|
|
contraction = analysis.addObject(
|
|
ObjectsFem.makeElementFluid1D(doc, "ElementFluid1D")
|
|
)[0]
|
|
contraction.SectionType = "Liquid"
|
|
contraction.LiquidSectionType = "PIPE CONTRACTION"
|
|
contraction.ContractArea1 = 70686
|
|
contraction.ContractArea2 = 17671
|
|
contraction.References = [(line, "Edge8")]
|
|
|
|
manning3 = analysis.addObject(
|
|
ObjectsFem.makeElementFluid1D(doc, "ElementFluid1D")
|
|
)[0]
|
|
manning3.SectionType = "Liquid"
|
|
manning3.LiquidSectionType = "PIPE MANNING"
|
|
manning3.ManningArea = 17671.00
|
|
manning3.ManningRadius = 37.5
|
|
manning3.ManningCoefficient = 0.002
|
|
manning3.References = [(line, "Edge11"), (line, "Edge9")]
|
|
|
|
gate_valve = analysis.addObject(
|
|
ObjectsFem.makeElementFluid1D(doc, "ElementFluid1D")
|
|
)[0]
|
|
gate_valve.SectionType = "Liquid"
|
|
gate_valve.LiquidSectionType = "PIPE GATE VALVE"
|
|
gate_valve.GateValvePipeArea = 17671
|
|
gate_valve.GateValveClosingCoeff = 0.5
|
|
gate_valve.References = [(line, "Edge10")]
|
|
|
|
enlargement2 = analysis.addObject(
|
|
ObjectsFem.makeElementFluid1D(doc, "ElementFluid1D")
|
|
)[0]
|
|
enlargement2.SectionType = "Liquid"
|
|
enlargement2.LiquidSectionType = "PIPE ENLARGEMENT"
|
|
enlargement2.EnlargeArea1 = 17671
|
|
enlargement2.EnlargeArea2 = 1e12
|
|
enlargement2.References = [(line, "Edge12")]
|
|
|
|
outlet = analysis.addObject(
|
|
ObjectsFem.makeElementFluid1D(doc, "ElementFluid1D")
|
|
)[0]
|
|
outlet.SectionType = "Liquid"
|
|
outlet.LiquidSectionType = "PIPE OUTLET"
|
|
outlet.OutletPressure = 0.1
|
|
outlet.References = [(line, "Edge13")]
|
|
|
|
self_weight = analysis.addObject(
|
|
ObjectsFem.makeConstraintSelfWeight(doc, "ConstraintSelfWeight")
|
|
)[0]
|
|
self_weight.Gravity_x = 0.0
|
|
self_weight.Gravity_y = 0.0
|
|
self_weight.Gravity_z = -1.0
|
|
|
|
# mesh
|
|
from .meshes.mesh_thermomech_flow1d_seg3 import create_nodes, create_elements
|
|
fem_mesh = Fem.FemMesh()
|
|
control = create_nodes(fem_mesh)
|
|
if not control:
|
|
FreeCAD.Console.PrintError("Error on creating nodes.\n")
|
|
control = create_elements(fem_mesh)
|
|
if not control:
|
|
FreeCAD.Console.PrintError("Error on creating elements.\n")
|
|
femmesh_obj = analysis.addObject(
|
|
doc.addObject("Fem::FemMeshObject", mesh_name)
|
|
)[0]
|
|
femmesh_obj.FemMesh = fem_mesh
|
|
|
|
doc.recompute()
|
|
return doc
|