Testing a python file as a copy&paste with some format

Revision as of 19:26, 28 November 2007

##################################################################

 ##################################################################

 #setting the domain size for the problem to be solved

 domain_size = 2

 

 ##################################################################

 ##################################################################

 ## ATTENTION: here the order is important

 

 #including kratos path

 kratos_libs_path = '../../../../libs' ##kratos_root/libs

 #kratos_libs_path = 'C:/kratosR1/libs' ##kratos_root/libs

 kratos_applications_path = '../../../../applications/' ##kratos_root/applications

 import sys

 sys.path.append(kratos_libs_path)

 sys.path.append(kratos_applications_path)

 

 #importing Kratos main library

 from Kratos import *

 kernel = Kernel()   #defining kernel

 

 #importing applications

 import applications_interface

 applications_interface.Import_IncompressibleFluidApplication = True

 applications_interface.ImportApplications(kernel, kratos_applications_path)

 

 ## from now on the order is not anymore crucial

 ##################################################################

 ##################################################################

 

 from KratosR1IncompressibleFluidApplication import *

 

 

 #defining a model part

 model_part = ModelPart("FluidPart");

 

 ##importing the solver files and adding the variables

 import incompressible_fluid_solver

 incompressible_fluid_solver.AddVariables(model_part)

 

 #adding of Variables to Model Part should be here when the "very fix container will be ready"

 

 #reading a model

 gid_io = GidIO("cavity2d",GiDPostMode.GiD_PostBinary)

 ##gid_io.ReadMesh(model_part.GetMesh())

 gid_io.ReadModelPart(model_part)

 gid_io.WriteMesh((model_part).GetMesh(),domain_size,GiDPostMode.GiD_PostBinary);

 print model_part

 

 #the buffer size should be set up here after the mesh is read for the first time

 model_part.SetBufferSize(3)

 

 ##add Degrees of Freedom to all of the nodes

 incompressible_fluid_solver.AddDofs(model_part)

 

 

 

 #creating a fluid solver object

 fluid_solver = incompressible_fluid_solver.IncompressibleFluidSolver(model_part,domain_size)

 fluid_solver.laplacian_form = 2;

 fluid_solver.predictor_corrector = True

 fluid_solver.vel_toll = 1e-3

 fluid_solver.time_order = 2

 fluid_solver.echo_level = 0

 

 

 

 #pILUPrecond = ILU0Preconditioner() 

 #fluid_solver.pressure_linear_solver =  BICGSTABSolver(1e-9, 5000,pILUPrecond)

 pDiagPrecond = DiagonalPreconditioner()

 fluid_solver.velocity_linear_solver =  BICGSTABSolver(1e-9, 5000,pDiagPrecond)

 fluid_solver.pressure_linear_solver =  BICGSTABSolver(1e-9, 5000,pDiagPrecond)

 ##fluid_solver.pressure_linear_solver = SkylineLUFactorizationSolver();

 fluid_solver.Initialize()

 

 #settings to be changed

 Re = 100.0

 nsteps = 200

 output_step = 1

 

 Dt = 1000.0/Re

 if(Dt > 0.1):

     Dt = 0.1

 out = 0

 for node in model_part.Nodes:

     node.SetSolutionStepValue(VISCOSITY,0,1.0/Re)

 

 for step in range(1,nsteps):

     print "line49"

 

     time = Dt*step

     print time

     model_part.CloneTimeStep(time)

 

     print "qui"

 

     print time

     #print model_part.ProcessInfo()[TIME]

 

     #solving the fluid problem

     if(step > 3):

         fluid_solver.Solve()

 

     print "li"

 

 

     #print the results

     if(out == output_step):

         gid_io.WriteNodalResults(PRESSURE,model_part.Nodes,time,0)

         gid_io.WriteNodalResults(VELOCITY,model_part.Nodes,time,0)

         gid_io.WriteNodalResults(PRESS_PROJ,model_part.Nodes,time,0)

         gid_io.WriteNodalResults(CONV_PROJ,model_part.Nodes,time,0)

         gid_io.WriteNodalResults(NODAL_AREA,model_part.Nodes,time,0)

         gid_io.WriteNodalResults(VISCOSITY,model_part.Nodes,time,0)

         out = 0

     out = out + 1

 

 node = model_part.Nodes[1]

 

 print node