PFEM Fluid improvements #713
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{
"problem_data" : {
"problem_name" : "coupling_test_1_mesh_size_04",
"start_time" : 0.0,
"end_time" : 15.0,
"echo_level" : 0,
"parallel_type" : "OpenMP",
"threads" : 8,
"gravity_vector" : [0.0,-9.81,0.0]
},
"solver_settings" : {
"solver_type" : "pfem_fluid_thermally_coupled_solver",
"domain_size" : 2,
"time_stepping" : {
"automatic_time_step" : true,
"time_step" : 0.002
},
"fluid_solver_settings": {
"solver_type" : "pfem_fluid_solver",
"model_part_name" : "PfemFluidModelPart",
"physics_type" : "fsi",
"domain_size" : 2,
"model_import_settings" : {
"input_type" : "mdpa",
"input_filename" : "coupling_test_1_mesh_size_04"
},
"time_stepping" : {
"automatic_time_step" : true,
"time_step" : 0.002
},
"maximum_pressure_iterations" : 7,
"velocity_tolerance" : 1e-5,
"pressure_tolerance" : 1e-5,
"echo_level" : 1,
"velocity_linear_solver_settings" : {
"solver_type" : "bicgstab",
"max_iteration" : 5000,
"tolerance" : 1e-9,
"preconditioner_type" : "ilu0",
"scaling" : false
},
"pressure_linear_solver_settings" : {
"solver_type" : "bicgstab",
"max_iteration" : 5000,
"tolerance" : 1e-9,
"preconditioner_type" : "ilu0",
"scaling" : false
},
"bodies_list" : [{
"body_type" : "Fluid",
"body_name" : "Fluid",
"parts_list" : ["Parts_Parts_Auto1"]
},{
"body_type" : "Solid",
"body_name" : "Solid",
"parts_list" : ["Parts_Parts_Auto2"]
},{
"body_type" : "Rigid",
"body_name" : "Interface",
"parts_list" : ["Parts_Parts_Auto3"]
}],
"problem_domain_sub_model_part_list" : ["Parts_Parts_Auto1","Parts_Parts_Auto2","Parts_Parts_Auto3"],
"processes_sub_model_part_list" : ["VELOCITY_Parts_Auto2"]
},
"thermal_solver_settings" : {
"solver_type" : "Transient",
"analysis_type" : "linear",
"model_part_name" : "ThermalModelPart",
"computing_model_part_name" : "thermal_computing_domain",
"domain_size" : 2,
"reform_dofs_at_each_step" : true,
"model_import_settings" : {
"input_type" : "use_input_model_part",
"input_filename" : "unknown_name"
},
"material_import_settings" : {
"materials_filename" : "ConvectionDiffusionMaterials.json"
},
"line_search" : false,
"echo_level" : 2,
"compute_reactions" : false,
"max_iteration" : 10,
"convergence_criterion" : "residual_criterion",
"solution_relative_tolerance" : 1e-5,
"solution_absolute_tolerance" : 1e-7,
"residual_relative_tolerance" : 1e-5,
"residual_absolute_tolerance" : 1e-7,
"problem_domain_sub_model_part_list" : ["Fluid","Solid"],
"processes_sub_model_part_list" : []
}
},
"problem_process_list" : [{
"help" : "This process applies meshing to the problem domains",
"kratos_module" : "KratosMultiphysics.PfemFluidDynamicsApplication",
"python_module" : "remesh_fluid_domains_process",
"process_name" : "RemeshFluidDomainsProcess",
"Parameters" : {
"model_part_name" : "PfemFluidModelPart",
"meshing_control_type" : "step",
"meshing_frequency" : 1.0,
"meshing_before_output" : true,
"meshing_domains" : [{
"model_part_name" : "Fluid",
"python_module" : "fluid_meshing_domain",
"alpha_shape" : 1.25,
"offset_factor" : 0.0,
"meshing_strategy" : {
"python_module" : "fluid_meshing_strategy",
"meshing_frequency" : 0,
"remesh" : true,
"refine" : true,
"reconnect" : false,
"transfer" : false,
"constrained" : false,
"mesh_smoothing" : false,
"variables_smoothing" : false,
"elemental_variables_to_smooth" : ["DETERMINANT_F"],
"reference_element_type" : "TwoStepUpdatedLagrangianVPFluidElement2D",
"reference_condition_type" : "CompositeCondition2D2N"
},
"spatial_bounding_box" : {
"use_bounding_box" : true,
"initial_time" : 0.0,
"final_time" : 20.0,
"upper_point" : [0.805,15.0,10],
"lower_point" : [-0.805,0.0,-10]
},
"spatial_refining_box" : {
"use_refining_box" : false,
"mesh_size" : 0.01,
"initial_time" : 0.0,
"final_time" : 1000.0,
"upper_point" : [10,10,10],
"lower_point" : [-10,-10,-10]
},
"refining_parameters" : {
"critical_size" : 0.0,
"threshold_variable" : "PLASTIC_STRAIN",
"reference_threshold" : 0.0,
"error_variable" : "NORM_ISOCHORIC_STRESS",
"reference_error" : 0.0,
"add_nodes" : false,
"insert_nodes" : true,
"remove_nodes" : {
"apply_removal" : true,
"on_distance" : true,
"on_threshold" : false,
"on_error" : false
},
"remove_boundary" : {
"apply_removal" : false,
"on_distance" : false,
"on_threshold" : false,
"on_error" : false
},
"refine_elements" : {
"apply_refinement" : true,
"on_distance" : true,
"on_threshold" : false,
"on_error" : false
},
"refine_boundary" : {
"apply_refinement" : false,
"on_distance" : false,
"on_threshold" : false,
"on_error" : false
}
}
},{
"model_part_name" : "Solid",
"python_module" : "fluid_meshing_domain",
"alpha_shape" : 1.25,
"offset_factor" : 0.0,
"meshing_strategy" : {
"python_module" : "fluid_meshing_strategy",
"meshing_frequency" : 0,
"remesh" : false,
"refine" : false,
"reconnect" : false,
"transfer" : false,
"constrained" : false,
"mesh_smoothing" : false,
"variables_smoothing" : false,
"elemental_variables_to_smooth" : ["DETERMINANT_F"],
"reference_element_type" : "TwoStepUpdatedLagrangianVPFluidElement2D",
"reference_condition_type" : "CompositeCondition2D2N"
},
"spatial_bounding_box" : {
"use_bounding_box" : true,
"initial_time" : 0.0,
"final_time" : 20.0,
"upper_point" : [0.805,15.0,10],
"lower_point" : [-0.805,0.0,-10]
},
"spatial_refining_box" : {
"use_refining_box" : false,
"mesh_size" : 0.01,
"initial_time" : 0.0,
"final_time" : 1000.0,
"upper_point" : [10,10,10],
"lower_point" : [-10,-10,-10]
},
"refining_parameters" : {
"critical_size" : 0.0,
"threshold_variable" : "PLASTIC_STRAIN",
"reference_threshold" : 0.0,
"error_variable" : "NORM_ISOCHORIC_STRESS",
"reference_error" : 0.0,
"add_nodes" : false,
"insert_nodes" : true,
"remove_nodes" : {
"apply_removal" : true,
"on_distance" : true,
"on_threshold" : false,
"on_error" : false
},
"remove_boundary" : {
"apply_removal" : false,
"on_distance" : false,
"on_threshold" : false,
"on_error" : false
},
"refine_elements" : {
"apply_refinement" : true,
"on_distance" : true,
"on_threshold" : false,
"on_error" : false
},
"refine_boundary" : {
"apply_refinement" : false,
"on_distance" : false,
"on_threshold" : false,
"on_error" : false
}
}
},{
"model_part_name" : "Interface",
"python_module" : "fluid_meshing_domain",
"alpha_shape" : 1.25,
"offset_factor" : 0.0,
"meshing_strategy" : {
"python_module" : "fluid_meshing_strategy",
"meshing_frequency" : 0,
"remesh" : false,
"refine" : false,
"reconnect" : false,
"transfer" : false,
"constrained" : false,
"mesh_smoothing" : false,
"variables_smoothing" : false,
"elemental_variables_to_smooth" : ["DETERMINANT_F"],
"reference_element_type" : "TwoStepUpdatedLagrangianVPFluidElement2D",
"reference_condition_type" : "CompositeCondition2D2N"
},
"spatial_bounding_box" : {
"use_bounding_box" : true,
"initial_time" : 0.0,
"final_time" : 20.0,
"upper_point" : [0.805,15.0,10],
"lower_point" : [-0.805,0.0,-10]
},
"spatial_refining_box" : {
"use_refining_box" : false,
"mesh_size" : 0.01,
"initial_time" : 0.0,
"final_time" : 1000.0,
"upper_point" : [10,10,10],
"lower_point" : [-10,-10,-10]
},
"refining_parameters" : {
"critical_size" : 0.0,
"threshold_variable" : "PLASTIC_STRAIN",
"reference_threshold" : 0.0,
"error_variable" : "NORM_ISOCHORIC_STRESS",
"reference_error" : 0.0,
"add_nodes" : false,
"insert_nodes" : true,
"remove_nodes" : {
"apply_removal" : true,
"on_distance" : true,
"on_threshold" : false,
"on_error" : false
},
"remove_boundary" : {
"apply_removal" : false,
"on_distance" : false,
"on_threshold" : false,
"on_error" : false
},
"refine_elements" : {
"apply_refinement" : true,
"on_distance" : true,
"on_threshold" : false,
"on_error" : false
},
"refine_boundary" : {
"apply_refinement" : false,
"on_distance" : false,
"on_threshold" : false,
"on_error" : false
}
}
}]
}
}],
"processes" : {
"initial_conditions_process_list" : [{
"python_module" : "assign_scalar_variable_process",
"kratos_module" : "KratosMultiphysics",
"Parameters" : {
"model_part_name" : "PfemFluidModelPart.Fluid",
"variable_name" : "TEMPERATURE",
"constrained" : false,
"value" : 10.0,
"interval" : [0.0,0.0001]
}
},{
"python_module" : "assign_scalar_variable_process",
"kratos_module" : "KratosMultiphysics",
"Parameters" : {
"model_part_name" : "PfemFluidModelPart.Solid",
"variable_name" : "TEMPERATURE",
"constrained" : false,
"value" : -10.0,
"interval" : [0.0,0.0001]
}
}],
"constraints_process_list" : [{
"python_module" : "assign_vector_variable_process",
"kratos_module" : "KratosMultiphysics",
"Parameters" : {
"model_part_name" : "PfemFluidModelPart.VELOCITY_Parts_Auto2",
"variable_name" : "VELOCITY",
"interval" : [0.0,"End"],
"constrained" : [true,true,true],
"value" : [0.0,0.0,0.0]
}
}],
"loads_process_list" : [],
"auxiliar_process_list" : []
},
"output_configuration" : {
"result_file_configuration" : {
"gidpost_flags" : {
"GiDPostMode" : "GiD_PostBinary",
"WriteDeformedMeshFlag" : "WriteDeformed",
"WriteConditionsFlag" : "WriteConditions",
"MultiFileFlag" : "MultipleFiles"
},
"file_label" : "time",
"output_control_type" : "time",
"output_frequency" : 0.05,
"body_output" : true,
"node_output" : true,
"skin_output" : false,
"plane_output" : [],
"nodal_results" : ["VELOCITY","ACCELERATION","PRESSURE","TEMPERATURE"],
"gauss_point_results" : [],
"nodal_nonhistorical_results" : []
},
"point_data_configuration" : []
}
}
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Merged
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Hi @jginternational , I add another point in the PFEM Fluid improvements: constitutive laws. The following options should be available in the GiD interface: For fluids:
For solids:
For thermally coupled problems the following should be added:
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I've created this branch for this issue. |
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Done. I set |
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Hi @jginternational, any update on this? |
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Hi @jginternational we would need to go ahead with this otherwise we cannot merge the development in kratos. Can you please take a look at it? |
This was referenced Apr 30, 2020
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Hi @jginternational |
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Write materials json file
Add "Thermally coupled" in Physics
Delete BC:
@MZecchetto , add a json example
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