OGS
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<OpenGeoSysProject>
<meshes>
<mesh>disc_with_hole.vtu</mesh>
<mesh>disc_with_hole_left.vtu</mesh>
<mesh>disc_with_hole_bottom.vtu</mesh>
<mesh>disc_with_hole_hole.vtu</mesh>
<mesh>disc_with_hole_edge.vtu</mesh>
</meshes>
<processes>
<process>
<name>HM</name>
<type>HYDRO_MECHANICS</type>
<integration_order>2</integration_order>
<dimension>2</dimension>
<constitutive_relation>
<type>LinearElasticIsotropic</type>
<youngs_modulus>E</youngs_modulus>
<poissons_ratio>nu</poissons_ratio>
</constitutive_relation>
<process_variables>
<displacement>displacement</displacement>
<pressure>pressure</pressure>
</process_variables>
<secondary_variables>
<secondary_variable internal_name="sigma" output_name="sigma" />
<secondary_variable internal_name="epsilon" output_name="epsilon" />
<secondary_variable internal_name="velocity" output_name="velocity" />
</secondary_variables>
<specific_body_force>0 0</specific_body_force>
</process>
</processes>
<media>
<medium>
<phases>
<phase>
<type>Gas</type>
<properties>
<property>
<name>viscosity</name>
<type>Constant</type>
<value>1e-3</value>
</property>
<property>
<name>density</name>
<type>Constant</type>
<value>1</value>
</property>
</properties>
</phase>
<phase>
<type>Solid</type>
<properties>
<property>
<name>density</name>
<type>Constant</type>
<value>2000</value>
</property>
</properties>
</phase>
</phases>
<properties>
<property>
<name>porosity</name>
<type>Constant</type>
<value>0.01</value>
</property>
<property>
<name>biot_coefficient</name>
<type>Constant</type>
<value>1</value>
</property>
<property>
<name>reference_temperature</name>
<type>Constant</type>
<value>293.15</value>
</property>
<property>
<name>permeability</name>
<type>OrthotropicEmbeddedFracturePermeability</type>
<intrinsic_permeability>k</intrinsic_permeability>
<mean_frac_distances>1e-2 1e-2 1e-2</mean_frac_distances>
<threshold_strains>1e-5 1e-5 1e-5</threshold_strains>
<fracture_normals>1 0 0 0 1 0</fracture_normals>
<fracture_rotation_xy>phi</fracture_rotation_xy>
<fracture_rotation_yz>zero</fracture_rotation_yz>
</property>
</properties>
</medium>
</media>
<time_loop>
<processes>
<process ref="HM">
<nonlinear_solver>basic_newton</nonlinear_solver>
<convergence_criterion>
<type>PerComponentDeltaX</type>
<norm_type>NORM2</norm_type>
<reltols>1e-14 1e-14 1e-14</reltols>
</convergence_criterion>
<time_discretization>
<type>BackwardEuler</type>
</time_discretization>
<time_stepping>
<type>FixedTimeStepping</type>
<t_initial>0</t_initial>
<t_end>1e9</t_end>
<timesteps>
<pair>
<repeat>1</repeat>
<delta_t>1e9</delta_t>
</pair>
</timesteps>
</time_stepping>
</process>
</processes>
<output>
<type>VTK</type>
<prefix>disc_with_hole_anisotropic_rotated</prefix>
<timesteps>
<pair>
<repeat>1</repeat>
<each_steps>1</each_steps>
</pair>
</timesteps>
<variables>
<variable>displacement</variable>
<variable>pressure</variable>
<variable>sigma_xx</variable>
<variable>sigma_yy</variable>
<variable>sigma_zz</variable>
<variable>sigma_xy</variable>
<variable>epsilon_xx</variable>
<variable>epsilon_yy</variable>
<variable>epsilon_zz</variable>
<variable>epsilon_xy</variable>
<variable>velocity</variable>
</variables>
</output>
</time_loop>
<parameters>
<parameter>
<name>phi</name>
<type>Constant</type>
<value>0.7853981633974483075</value>
</parameter>
<parameter>
<name>zero</name>
<type>Constant</type>
<value>0.0</value>
</parameter>
<parameter>
<name>k</name>
<type>Constant</type>
<value>1e-18</value>
</parameter>
<parameter>
<name>E</name>
<type>Constant</type>
<value>1e9</value>
</parameter>
<parameter>
<name>nu</name>
<type>Constant</type>
<value>.3</value>
</parameter>
<parameter>
<name>displacement0</name>
<type>Constant</type>
<values>0 0</values>
</parameter>
<parameter>
<name>dirichlet0</name>
<type>Constant</type>
<value>0</value>
</parameter>
<parameter>
<name>p_edge</name>
<type>Constant</type>
<value>0.1e6</value>
</parameter>
<parameter>
<name>normal_traction_edge</name>
<type>Constant</type>
<value>0.1e6</value>
</parameter>
<parameter>
<name>normal_traction_hole</name>
<type>Constant</type>
<value>-1e6</value>
</parameter>
<parameter>
<name>pressure_ic</name>
<type>Constant</type>
<values>0.1e6</values>
</parameter>
<parameter>
<name>p_hole</name>
<type>Constant</type>
<values>1e6</values>
</parameter>
</parameters>
<process_variables>
<process_variable>
<name>displacement</name>
<components>2</components>
<order>1</order>
<initial_condition>displacement0</initial_condition>
<boundary_conditions>
<boundary_condition>
<mesh>disc_with_hole_left</mesh>
<type>Dirichlet</type>
<component>0</component>
<parameter>dirichlet0</parameter>
</boundary_condition>
<boundary_condition>
<mesh>disc_with_hole_bottom</mesh>
<type>Dirichlet</type>
<component>1</component>
<parameter>dirichlet0</parameter>
</boundary_condition>
<boundary_condition>
<mesh>disc_with_hole_edge</mesh>
<type>NormalTraction</type>
<parameter>normal_traction_edge</parameter>
</boundary_condition>
<boundary_condition>
<mesh>disc_with_hole_hole</mesh>
<type>NormalTraction</type>
<parameter>normal_traction_hole</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>disc_with_hole_hole</mesh>
<type>Dirichlet</type>
<component>0</component>
<parameter>p_hole</parameter>
</boundary_condition>
<boundary_condition>
<mesh>disc_with_hole_edge</mesh>
<type>Dirichlet</type>
<component>0</component>
<parameter>p_edge</parameter>
</boundary_condition>
</boundary_conditions>
</process_variable>
</process_variables>
<nonlinear_solvers>
<nonlinear_solver>
<name>basic_newton</name>
<type>Newton</type>
<max_iter>50</max_iter>
<linear_solver>general_linear_solver</linear_solver>
</nonlinear_solver>
</nonlinear_solvers>
<linear_solvers>
<linear_solver>
<name>general_linear_solver</name>
<lis>-i bicgstab -p ilu -tol 1e-12 -maxiter 10000</lis>
<eigen>
<solver_type>BiCGSTAB</solver_type>
<precon_type>DIAGONAL</precon_type>
<max_iteration_step>10000</max_iteration_step>
<error_tolerance>1e-12</error_tolerance>
</eigen>
</linear_solver>
</linear_solvers>
</OpenGeoSysProject>