scheme = TaylorScheme()
elif DEM_parameters.IntegrationScheme == 'Newmark_Beta_Method':
scheme = NewmarkBetaScheme(0.5, 0.25)
elif DEM_parameters.IntegrationScheme == 'Verlet_Velocity':
scheme = VerletVelocityScheme()
else:
KRATOSprint(
'Error: selected scheme not defined. Please select a different scheme')
if DEM_parameters.ElementType == "SwimmingNanoParticle":
scheme = TerminalVelocityScheme()
# Creating a solver object and set the search strategy
solver = SolverStrategy.ExplicitStrategy(spheres_model_part,
rigid_face_model_part,
cluster_model_part,
DEM_inlet_model_part,
creator_destructor, dem_fem_search,
scheme, DEM_parameters, procedures)
# Add variables
procedures.AddCommonVariables(spheres_model_part, DEM_parameters)
procedures.AddSpheresVariables(spheres_model_part, DEM_parameters)
procedures.AddMpiVariables(spheres_model_part)
solver.AddAdditionalVariables(spheres_model_part, DEM_parameters)
procedures.AddCommonVariables(cluster_model_part, DEM_parameters)
procedures.AddClusterVariables(cluster_model_part, DEM_parameters)
procedures.AddMpiVariables(cluster_model_part)
procedures.AddCommonVariables(DEM_inlet_model_part, DEM_parameters)
procedures.AddSpheresVariables(DEM_inlet_model_part, DEM_parameters)
solver.AddAdditionalVariables(DEM_inlet_model_part, DEM_parameters)
procedures.AddCommonVariables(rigid_face_model_part, DEM_parameters)
mp_list.append(rigid_face_model_part)
mp_list.append(cluster_model_part)
mp_list.append(DEM_inlet_model_part)
mp_list.append(mapping_model_part)
mp_list.append(contact_model_part)
all_model_parts = DEM_procedures.SetOfModelParts(mp_list)
# Constructing a utilities objects
creator_destructor = ParticleCreatorDestructor()
dem_fem_search = DEM_FEM_Search()
scheme = procedures.SetScheme()
#solver = SolverStrategy.ExplicitStrategy(spheres_model_part, rigid_face_model_part, cluster_model_part, DEM_inlet_model_part, contact_model_part, creator_destructor, dem_fem_search, scheme, DEM_parameters, procedures)
solver = SolverStrategy.ExplicitStrategy(all_model_parts,
creator_destructor,
dem_fem_search, scheme,
DEM_parameters, procedures)
procedures.AddAllVariablesInAllModelParts(solver, scheme,
all_model_parts,
DEM_parameters)
os.chdir(main_path)
DEM_parameters.problem_name = 'benchmark' + str(benchmark_number)
# Reading the model_part
spheres_mp_filename = DEM_parameters.problem_name + "DEM"
model_part_io_spheres = model_part_reader(spheres_mp_filename)
if (hasattr(DEM_parameters, "do_not_perform_initial_partition")
and DEM_parameters.do_not_perform_initial_partition == 1):
pass
procedures.PreProcessModel(DEM_parameters)
# Prepare modelparts
spheres_model_part = ModelPart("SpheresPart")
rigid_face_model_part = ModelPart("RigidFace_Part")
mixed_model_part = ModelPart("Mixed_Part")
cluster_model_part = ModelPart("Cluster_Part")
DEM_inlet_model_part = ModelPart("DEMInletPart")
mapping_model_part = ModelPart("Mappingmodel_part")
contact_model_part = ""
# Constructing a creator/destructor object
creator_destructor = ParticleCreatorDestructor()
# Creating a solver object and set the search strategy
solver = SolverStrategy.ExplicitStrategy(
spheres_model_part, rigid_face_model_part, cluster_model_part,
DEM_inlet_model_part, creator_destructor, DEM_parameters)
# Add variables
procedures.AddCommonVariables(spheres_model_part, DEM_parameters)
procedures.AddSpheresVariables(spheres_model_part, DEM_parameters)
procedures.AddMpiVariables(spheres_model_part)
solver.AddAdditionalVariables(spheres_model_part, DEM_parameters)
procedures.AddCommonVariables(cluster_model_part, DEM_parameters)
procedures.AddClusterVariables(cluster_model_part, DEM_parameters)
procedures.AddMpiVariables(cluster_model_part)
procedures.AddCommonVariables(DEM_inlet_model_part, DEM_parameters)
procedures.AddSpheresVariables(DEM_inlet_model_part, DEM_parameters)
solver.AddAdditionalVariables(DEM_inlet_model_part, DEM_parameters)
#
procedures.AddCommonVariables(rigid_face_model_part, DEM_parameters)
procedures.AddRigidFaceVariables(rigid_face_model_part, DEM_parameters)
# creating a custom functions calculator for the implementation of additional custom functions
custom_functions_tool = swim_proc.FunctionsCalculator(ProjectParameters)
# creating a CreatorDestructor object, responsible for any adding or removing of elements during the simulation
creator_destructor = ParticleCreatorDestructor()
max_fluid_node_Id = swim_proc.FindMaxNodeIdInFLuid(fluid_model_part)
creator_destructor.SetMaxNodeId(max_fluid_node_Id)
# setting up a bounding box for the DEM balls (it is used for erasing remote balls)
DEM_proc.SetBoundingBox(balls_model_part, creator_destructor)
# creating a Solver object for the DEM part. It contains the sequence of function calls necessary for the evolution of the DEM system at every time step
dem_solver = DEMSolverStrategy.ExplicitStrategy(balls_model_part,
clusters_model_part,
rigid_faces_model_part,
creator_destructor,
ProjectParameters.dem)
# Initializing the DEM solver (must be done before creating the DEM Inlet, because the Inlet configures itself according to some options of the DEM model part)
dem_solver.Initialize()
# creating a distance calculation process for the embedded technology
# (used to calculate elemental distances defining the structure embedded in the fluid mesh)
if (ProjectParameters.embedded_option):
calculate_distance_process = CalculateSignedDistanceTo3DSkinProcess(
rigid_faces_model_part, fluid_model_part)
calculate_distance_process.Execute()
# constructing a model part for the DEM inlet. it contains the DEM elements to be released during the simulation