src/Tools/MacMesh/Example/PressureValve.py.in

   1 ##################################################################
   2 # Header for salome initialization ###############################
   3
   4 import sys, salome, geompy, smesh, SMESH, math, os
   5 sys.path.append( os.path.join( os.getenv('SMESH_ROOT_DIR'), '@MACMESH_INSTALL_PY@'))
   6
   7 from MacObject import *
   8 from SharpAngle import *
   9 from CentralUnrefine import *
  10 from PublishGroups import *
  11 from CompositeBox import *
  12 from CompositeBoxF import *
  13
  14
  15 import Config, GenFunctions
  16
  17 Config.theStudy = salome.myStudy;
  18 geompy.init_geom(Config.theStudy)
  19
  20 ##################################################################
  21 # Mesh name ######################################################
  22
  23 Config.StudyName = "SRV_X."
  24
  25 ##################################################################
  26 # Definition of geometrical parameters ###########################
  27
  28 X = 1.0         # Valve initial opening
  29
  30 Config.StudyName += str(X)+"mm"
  31
  32 R = 7.5         # Upstream pipe radius
  33 T = 5.0         # Upstream pipe thickness
  34 H = 20.0        # Upstream pipe height
  35 J = 6.0         # Jet distance
  36 E = 60.0        # Exit extent
  37
  38 ##################################################################
  39 # Definition of meshing parameters ###############################
  40
  41 d = 0.1         # Meshing element size at the inner corner
  42 Nl = 1          # Number of levels in the local refinement
  43 ##################################################################
  44 Bloc = []
  45
  46 # Object No. 1 #
  47 Bloc.append( SharpAngleOut(0.,0.,X,1.5*X,X,d,'NE',Nl,
  48               groups=['PH','PV_IN','VH',None,None,None])  )
  49
  50 # Object No. 2 #
  51 Bloc.append( CompositeBox(X/2.+0.5*(R-X/2.),0.5*(X+X/2.)-X/2.,R-X/2.,X+X/2.,
  52               groups=[None,'VH',None,'AXIS']           )  )
  53
  54 # Object No. 3 #
  55 Bloc.append( CompositeBoxF((0.,-X/2.),(R,-X/2.),(R,-H),(0.,-H),
  56               groups=['IN',None,'PV_IN','AXIS']           )  )
  57
  58 # Object No. 4 #
  59 Bloc.append( SharpAngleOut(-T,0.,X,X,X,d,'NW',Nl,
  60               groups=['PH','PV_OUT',None,None,None,None])  )
  61
  62 # Object No. 5 #
  63 Bloc.append( SharpAngleOut(-T,X,X,X,X,d,'SW',Nl,
  64               groups=['VH','VV',None,None,None,None])  )
  65
  66 if X < T :
  67         gap = T-X
  68         Bloc.append( MacObject('CompBoxF',[(-X/2.-gap/2.,X/2.),(gap,X)],
  69               ['auto'],groups=['PH','VH',None,None]    )  )
  70
  71 # Object No. 6 #
  72 Bloc.append( MacObject('CompBoxF',[(-T-X/2.-(J-X/2.)/2.,X/2.),(J-X/2.,2.*X)],
  73               ['auto'],groups=[None,None,None,None]    )  )
  74
  75 # Object No. 7 #
  76 Bloc.append( CentralUnrefine(-T-J,X/2.,2.*E-J,E,'EW',
  77               groups=[None,None,None,'OUT_V','OUT_H_HI','OUT_H_LO']))
  78
  79 # Object No. 8 #
  80 Bloc.append( CompositeBox(-T-J/2.,-X/2.-0.5*((E-X)/2.-X/2.),J,(E-X)/2.-X/2.,
  81               groups=['OUT_H_LO',None,None,'PV_OUT']   )  )
  82
  83 # Object No. 9 #
  84 Bloc.append( CompositeBox(-T-J/2.,X+X/2.+0.5*((E-X)/2.-X/2.),J,(E-X)/2.-X/2.,
  85               groups=[None,'OUT_H_HI',None,'VV'] )  )
  86
  87 SRVMesh = PublishGroups()
  88
  89 RealLocalMeshing = Bloc[0][0].GeoPar[1][0]/Bloc[0][0].DirectionalMeshParams[0]
  90 ExtrusionAngle = 2. * math.asin(RealLocalMeshing/(2*R))*180./math.pi
  91 print "\nThe mesh will be revolved with an angle of :",ExtrusionAngle
  92
  93 RevolveMesh(SRVMesh, Center=[R+0.01,0,0], Direction=[0,1,0], AngleDeg=ExtrusionAngle, Scale=0.001)
  94