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https://git.salome-platform.org/gitpub/modules/smesh.git
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78 lines
2.4 KiB
Python
78 lines
2.4 KiB
Python
# Viscous layers construction
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import salome
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salome.salome_init_without_session()
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import SMESH
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from salome.geom import geomBuilder
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from salome.smesh import smeshBuilder
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geom_builder = geomBuilder.New()
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smesh_builder = smeshBuilder.New()
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X = geom_builder.MakeVectorDXDYDZ( 1,0,0 )
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O = geom_builder.MakeVertex( 100,50,50 )
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plane = geom_builder.MakePlane( O, X, 200 ) # plane YZ
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box = geom_builder.MakeBoxDXDYDZ(200,100,100)
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shape = geom_builder.MakeHalfPartition( box, plane )
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faces = geom_builder.SubShapeAllSorted(shape, geom_builder.ShapeType["FACE"])
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face1 = faces[1]
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ignoreFaces = [ faces[0], faces[-1]]
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geom_builder.addToStudy( shape, "shape" )
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geom_builder.addToStudyInFather( shape, face1, "face1")
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# 3D Viscous layers
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mesh = smesh_builder.Mesh(shape, "CFD")
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mesh.Segment().NumberOfSegments( 4 )
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mesh.Triangle()
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mesh.Quadrangle(face1)
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algo3D = mesh.Tetrahedron()
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thickness = 20
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numberOfLayers = 10
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stretchFactor = 1.5
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groupName = "Boundary layers"
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layersHyp = algo3D.ViscousLayers(thickness,numberOfLayers,stretchFactor,
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ignoreFaces, # optional
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groupName = groupName) # optional
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mesh.Compute()
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# retrieve boundary prisms created by mesh.Compute()
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boundaryGroup = mesh.GetGroupByName( layersHyp.GetGroupName() )[0]
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print( "Nb boundary prisms", boundaryGroup.Size() )
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mesh.MakeGroup("Tetras",SMESH.VOLUME,SMESH.FT_ElemGeomType,"=",SMESH.Geom_TETRA)
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mesh.MakeGroup("Pyras",SMESH.VOLUME,SMESH.FT_ElemGeomType,"=",SMESH.Geom_PYRAMID)
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mesh.MakeGroup("Prims",SMESH.VOLUME,SMESH.FT_ElemGeomType,"=",SMESH.Geom_PENTA)
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# 2D Viscous layers
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# 3 edges of the 4 edges of face1
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edgeIds = geom_builder.SubShapeAllIDs( face1, geom_builder.ShapeType["EDGE"])[:-1]
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mesh = smesh_builder.Mesh(face1,"VicsousLayers2D")
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mesh.Segment().NumberOfSegments( 5 )
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# viscous layers will be created on 1 edge, as we set 3 edges to ignore
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vlHyp = mesh.Triangle().ViscousLayers2D( 2, 3, 1.5,
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edgeIds, isEdgesToIgnore=True, # optional
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groupName=groupName) # optional
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mesh.Compute()
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# retrieve boundary elements created by mesh.Compute()
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quadrangles = mesh.GetGroupByName( vlHyp.GetGroupName() )[0]
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print( "Nb boundary quadrangles", quadrangles.Size() )
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# viscous layers will be created on 3 edges, as we pass isEdgesToIgnore=False
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vlHyp.SetEdges( edgeIds, False )
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mesh.Compute()
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