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OGS
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<OpenGeoSysProject>
<meshes>
<mesh>KGD.vtu</mesh>
<mesh>KGD_left.vtu</mesh>
<mesh>KGD_right.vtu</mesh>
<mesh>KGD_top.vtu</mesh>
<mesh>KGD_bottom.vtu</mesh>
<mesh>KGD_source.vtu</mesh>
</meshes>
<processes>
<process>
<name>HMPhaseField</name>
<type>HM_PHASE_FIELD</type>
<coupling_scheme>staggered</coupling_scheme>
<fixed_stress_stabilization_parameter>1.0</fixed_stress_stabilization_parameter>
<spatial_stabilization_parameter>1.0</spatial_stabilization_parameter>
<integration_order>2</integration_order>
<phasefield_model>AT1</phasefield_model>
<energy_split_model>VolumetricDeviatoric</energy_split_model>
<irreversible_threshold>0.1</irreversible_threshold>
<constitutive_relation>
<type>LinearElasticIsotropic</type>
<youngs_modulus>E</youngs_modulus>
<poissons_ratio>nu</poissons_ratio>
</constitutive_relation>
<phasefield_parameters>
<residual_stiffness>k</residual_stiffness>
<crack_resistance>gc</crack_resistance>
<crack_length_scale>ls</crack_length_scale>
</phasefield_parameters>
<width_init>w_ini</width_init>
<fluid_compressibility>0.0</fluid_compressibility>
<diffused_range_parameter>2</diffused_range_parameter>
<fracture_threshold>0.1</fracture_threshold>
<fracture_permeability_parameter>10.</fracture_permeability_parameter>
<process_variables>
<phasefield>phasefield</phasefield>
<pressure>pressure</pressure>
<displacement>displacement</displacement>
</process_variables>
<secondary_variables>
<secondary_variable internal_name="sigma" output_name="sigma" />
<secondary_variable internal_name="epsilon" output_name="epsilon" />
<secondary_variable internal_name="width_node" output_name="width_node" />
</secondary_variables>
<specific_body_force>0 0</specific_body_force>
<specific_fracture_direction>0 0</specific_fracture_direction>
</process>
</processes>
<media>
<medium>
<phases>
<phase>
<type>AqueousLiquid</type>
<properties>
<property>
<name>viscosity</name>
<type>Constant</type>
<value>1e-8</value>
</property>
<property>
<name>density</name>
<type>Constant</type>
<value>1e3</value>
</property>
</properties>
</phase>
<phase>
<type>Solid</type>
<properties>
<property>
<name>density</name>
<type>Constant</type>
<value>2.7e3</value>
</property>
<property>
<name>biot_coefficient</name>
<type>Constant</type>
<value>0.0</value>
</property>
</properties>
</phase>
</phases>
<properties>
<property>
<name>reference_temperature</name>
<type>Constant</type>
<value>293.15</value>
</property>
<property>
<name>porosity</name>
<type>Constant</type>
<value>0.0</value>
</property>
<property>
<name>permeability</name>
<type>Constant</type>
<value>1e-19</value>
</property>
</properties>
</medium>
</media>
<time_loop>
<global_process_coupling>
<max_iter>1000</max_iter>
<convergence_criteria>
<convergence_criterion>
<type>DeltaX</type>
<norm_type>NORM2</norm_type>
<abstol>1.e-10</abstol>
<reltol>1.e-6</reltol>
</convergence_criterion>
<convergence_criterion>
<type>DeltaX</type>
<norm_type>NORM2</norm_type>
<abstol>1.e-10</abstol>
<reltol>1.e-6</reltol>
</convergence_criterion>
<convergence_criterion>
<type>DeltaX</type>
<norm_type>NORM2</norm_type>
<abstol>1.e-10</abstol>
<reltol>1.e-6</reltol>
</convergence_criterion>
</convergence_criteria>
<local_coupling_processes>
<process_name>pressure</process_name>
<process_name>displacement</process_name>
<max_iter>1000</max_iter>
</local_coupling_processes>
</global_process_coupling>
<processes>
<process ref="HMPhaseField">
<nonlinear_solver>petsc_snes</nonlinear_solver>
<convergence_criterion>
<type>DeltaX</type>
<norm_type>NORM2</norm_type>
<abstol>1e-10</abstol>
<reltol>1.e-8</reltol>
</convergence_criterion>
<time_discretization>
<type>BackwardEuler</type>
</time_discretization>
<time_stepping>
<type>FixedTimeStepping</type>
<t_initial>0</t_initial>
<t_end>200</t_end>
<timesteps>
<pair>
<repeat>4</repeat>
<delta_t>5</delta_t>
</pair>
<pair>
<repeat>1</repeat>
<delta_t>180</delta_t>
</pair>
</timesteps>
</time_stepping>
</process>
<process ref="HMPhaseField">
<process_name>pressure</process_name>
<nonlinear_solver>basic_newton_p</nonlinear_solver>
<convergence_criterion>
<type>DeltaX</type>
<norm_type>NORM2</norm_type>
<abstol>1e-10</abstol>
<reltol>1.e-8</reltol>
</convergence_criterion>
<time_discretization>
<type>BackwardEuler</type>
</time_discretization>
<time_stepping>
<type>FixedTimeStepping</type>
<t_initial>0</t_initial>
<t_end>200</t_end>
<timesteps>
<pair>
<repeat>4</repeat>
<delta_t>5</delta_t>
</pair>
<pair>
<repeat>1</repeat>
<delta_t>180</delta_t>
</pair>
</timesteps>
</time_stepping>
</process>
<process ref="HMPhaseField">
<process_name>displacement</process_name>
<nonlinear_solver>basic_newton_u</nonlinear_solver>
<convergence_criterion>
<type>DeltaX</type>
<norm_type>NORM2</norm_type>
<abstol>1e-10</abstol>
<reltol>1.e-8</reltol>
</convergence_criterion>
<time_discretization>
<type>BackwardEuler</type>
</time_discretization>
<time_stepping>
<type>FixedTimeStepping</type>
<t_initial>0</t_initial>
<t_end>200</t_end>
<timesteps>
<pair>
<repeat>4</repeat>
<delta_t>5</delta_t>
</pair>
<pair>
<repeat>1</repeat>
<delta_t>180</delta_t>
</pair>
</timesteps>
</time_stepping>
</process>
</processes>
<output>
<type>VTK</type>
<prefix>KGD_4core</prefix>
<variables>
<variable>displacement</variable>
<variable>phasefield</variable>
<variable>pressure</variable>
<variable>sigma</variable>
<variable>epsilon</variable>
<variable>width_node</variable>
<variable>damage</variable>
<variable>width</variable>
<variable>initial_width</variable>
</variables>
<output_iteration_results>false</output_iteration_results>
<timesteps>
<pair>
<repeat>1</repeat>
<each_steps>1</each_steps>
</pair>
</timesteps>
</output>
</time_loop>
<parameters>
<parameter>
<name>E</name>
<type>Constant</type>
<value>17e9</value>
</parameter>
<parameter>
<name>nu</name>
<type>Constant</type>
<value>0.2</value>
</parameter>
<parameter>
<name>k</name>
<type>Constant</type>
<value>1e-8</value>
</parameter>
<parameter>
<name>gc</name>
<type>Constant</type>
<value>120</value>
</parameter>
<parameter>
<name>ls</name>
<type>Constant</type>
<value>0.2</value>
</parameter>
<parameter>
<name>displacement0</name>
<type>Constant</type>
<values>0 0</values>
</parameter>
<parameter>
<name>phasefield_ic</name>
<type>MeshNode</type>
<field_name>pf-ic</field_name>
</parameter>
<parameter>
<name>phasefield_bc</name>
<type>Constant</type>
<value>1.</value>
</parameter>
<parameter>
<name>pressure_ic</name>
<type>Constant</type>
<value>0.</value>
</parameter>
<parameter>
<name>dirichlet0</name>
<type>Constant</type>
<value>0</value>
</parameter>
<parameter>
<name>w_ini</name>
<type>MeshElement</type>
<field_name>initial_width</field_name>
</parameter>
<parameter>
<name>source</name>
<type>Constant</type>
<value>1e-3</value>
</parameter>
<parameter>
<name>source_injection</name>
<type>CurveScaled</type>
<curve>Injection_time</curve>
<parameter>source</parameter>
</parameter>
</parameters>
<curves>
<curve>
<name>Injection_time</name>
<coords>0. 5. 10. 15. 200.</coords>
<values>0. 0.5 2. 0. 0.</values>
</curve>
</curves>
<process_variables>
<process_variable>
<name>phasefield</name>
<components>1</components>
<order>1</order>
<initial_condition>phasefield_ic</initial_condition>
<boundary_conditions>
<boundary_condition>
<mesh>KGD_top</mesh>
<type>Dirichlet</type>
<component>0</component>
<parameter>phasefield_bc</parameter>
</boundary_condition>
<boundary_condition>
<mesh>KGD_bottom</mesh>
<type>Dirichlet</type>
<component>0</component>
<parameter>phasefield_bc</parameter>
</boundary_condition>
<boundary_condition>
<mesh>KGD_right</mesh>
<type>Dirichlet</type>
<component>0</component>
<parameter>phasefield_bc</parameter>
</boundary_condition>
</boundary_conditions>
</process_variable>
<process_variable>
<name>pressure</name>
<components>1</components>
<order>1</order>
<initial_condition>pressure_ic</initial_condition>
<boundary_conditions>
<boundary_condition>
<mesh>KGD_right</mesh>
<type>Dirichlet</type>
<component>0</component>
<parameter>dirichlet0</parameter>
</boundary_condition>
<boundary_condition>
<mesh>KGD_bottom</mesh>
<type>Dirichlet</type>
<component>0</component>
<parameter>dirichlet0</parameter>
</boundary_condition>
<boundary_condition>
<mesh>KGD_top</mesh>
<type>Dirichlet</type>
<component>0</component>
<parameter>dirichlet0</parameter>
</boundary_condition>
</boundary_conditions>
<source_terms>
<source_term>
<mesh>KGD_source</mesh>
<type>Line</type>
<parameter>source_injection</parameter>
</source_term>
</source_terms>
</process_variable>
<process_variable>
<name>displacement</name>
<components>2</components>
<order>1</order>
<initial_condition>displacement0</initial_condition>
<boundary_conditions>
<boundary_condition>
<mesh>KGD_left</mesh>
<type>Dirichlet</type>
<component>0</component>
<parameter>dirichlet0</parameter>
</boundary_condition>
<boundary_condition>
<mesh>KGD_right</mesh>
<type>Dirichlet</type>
<component>0</component>
<parameter>dirichlet0</parameter>
</boundary_condition>
<boundary_condition>
<mesh>KGD_bottom</mesh>
<type>Dirichlet</type>
<component>1</component>
<parameter>dirichlet0</parameter>
</boundary_condition>
<boundary_condition>
<mesh>KGD_top</mesh>
<type>Dirichlet</type>
<component>1</component>
<parameter>dirichlet0</parameter>
</boundary_condition>
</boundary_conditions>
</process_variable>
</process_variables>
<nonlinear_solvers>
<nonlinear_solver>
<name>petsc_snes</name>
<type>PETScSNES</type>
<max_iter>50</max_iter>
<linear_solver>linear_solver_d</linear_solver>
</nonlinear_solver>
<nonlinear_solver>
<name>basic_newton_u</name>
<type>Newton</type>
<max_iter>100</max_iter>
<linear_solver>linear_solver_u</linear_solver>
</nonlinear_solver>
<nonlinear_solver>
<name>basic_newton_p</name>
<type>Newton</type>
<max_iter>500</max_iter>
<linear_solver>linear_solver_p</linear_solver>
</nonlinear_solver>
</nonlinear_solvers>
<linear_solvers>
<linear_solver>
<name>linear_solver_d</name>
<eigen>
<solver_type>BiCGSTAB</solver_type>
<precon_type>ILUT</precon_type>
<max_iteration_step>100</max_iteration_step>
<error_tolerance>1e-16</error_tolerance>
</eigen>
<petsc>
<parameters>-ksp_type cg -pc_type bjacobi -ksp_atol 1e-14 -ksp_rtol 1e-14 -snes_type vinewtonrsls -snes_linesearch_type l2 -snes_atol 1.e-10 -snes_rtol 1.e-10 -snes_max_it 1000 -snes_monitor</parameters>
</petsc>
</linear_solver>
<linear_solver>
<name>linear_solver_u</name>
<eigen>
<solver_type>BiCGSTAB</solver_type>
<precon_type>ILUT</precon_type>
<max_iteration_step>10000</max_iteration_step>
<error_tolerance>1e-16</error_tolerance>
</eigen>
<petsc>
<prefix>u</prefix>
<parameters>-u_ksp_type bcgs -u_pc_type bjacobi -u_ksp_rtol 1e-10 -u_ksp_atol 1e-10 -u_ksp_max_it 10000</parameters>
</petsc>
</linear_solver>
<linear_solver>
<name>linear_solver_p</name>
<eigen>
<solver_type>BiCGSTAB</solver_type>
<precon_type>ILUT</precon_type>
<max_iteration_step>10000</max_iteration_step>
<error_tolerance>1e-16</error_tolerance>
</eigen>
<petsc>
<prefix>p</prefix>
<parameters>-p_ksp_type bcgs -p_pc_type hypre -p_pc_hypre_type boomeramg -p_pc_hypre_boomeramg_strong_threshold 0.7 -p_ksp_atol 1e-8 -p_ksp_rtol 1e-8 -p_ksp_monitor</parameters>
</petsc>
</linear_solver>
</linear_solvers>
</OpenGeoSysProject>
1.12.0