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OGS
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OGS
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<OpenGeoSysProject>
<meshes>
<mesh>fracture_in_3D.vtu</mesh>
<mesh>top_surface.vtu</mesh>
<mesh>bottom_surface.vtu</mesh>
</meshes>
<processes>
<process>
<name>LiquidFlow</name>
<type>LIQUID_FLOW</type>
<integration_order>2</integration_order>
<equation_balance_type>mass</equation_balance_type>
<process_variables>
<process_variable>pressure</process_variable>
</process_variables>
<specific_body_force>0 0 -9.8</specific_body_force>
<secondary_variables>
<secondary_variable internal_name="darcy_velocity" output_name="v" />
</secondary_variables>
<aperture_size>
<parameter>fracture_thickness</parameter>
</aperture_size>
<linear>true</linear>
</process>
</processes>
<media>
<medium id="0">
<phases>
<phase>
<type>AqueousLiquid</type>
<properties>
<property>
<name>viscosity</name>
<type>Constant</type>
<value>1.e-3</value>
</property>
<property>
<name>density</name>
<type>Linear</type>
<reference_value>1000.0</reference_value>
<independent_variable>
<variable_name>liquid_phase_pressure</variable_name>
<reference_condition>1e5</reference_condition>
<slope>4.6511627906976743356e-10</slope>
</independent_variable>
</property>
</properties>
</phase>
</phases>
<properties>
<property>
<name>permeability</name>
<type>Parameter</type>
<parameter_name>k_rock</parameter_name>
</property>
<property>
<name>reference_temperature</name>
<type>Constant</type>
<value>293.15</value>
</property>
<property>
<name>porosity</name>
<type>Constant</type>
<value>0.1</value>
</property>
<property>
<name>storage</name>
<type>Constant</type>
<value>1.e-10</value>
</property>
</properties>
</medium>
<medium id="1">
<phases>
<phase>
<type>AqueousLiquid</type>
<properties>
<property>
<name>viscosity</name>
<type>Constant</type>
<value>1.e-3</value>
</property>
<property>
<name>density</name>
<type>Linear</type>
<reference_value>1000.0</reference_value>
<independent_variable>
<variable_name>liquid_phase_pressure</variable_name>
<reference_condition>1e5</reference_condition>
<slope>4.6511627906976743356e-10</slope>
</independent_variable>
</property>
</properties>
</phase>
</phases>
<properties>
<property>
<name>permeability</name>
<type>Constant</type>
<value>1.e-14</value>
</property>
<property>
<name>reference_temperature</name>
<type>Constant</type>
<value>293.15</value>
</property>
<property>
<name>porosity</name>
<type>Constant</type>
<value>0.2</value>
</property>
<property>
<name>storage</name>
<type>Constant</type>
<value>1.e-10</value>
</property>
</properties>
</medium>
<medium id="2">
<phases>
<phase>
<type>AqueousLiquid</type>
<properties>
<property>
<name>viscosity</name>
<type>Constant</type>
<value>1.e-3</value>
</property>
<property>
<name>density</name>
<type>Linear</type>
<reference_value>1000.0</reference_value>
<independent_variable>
<variable_name>liquid_phase_pressure</variable_name>
<reference_condition>1e5</reference_condition>
<slope>4.6511627906976743356e-10</slope>
</independent_variable>
</property>
</properties>
</phase>
</phases>
<properties>
<property>
<name>permeability</name>
<type>Constant</type>
<value>1.e-15</value>
</property>
<property>
<name>reference_temperature</name>
<type>Constant</type>
<value>293.15</value>
</property>
<property>
<name>porosity</name>
<type>Constant</type>
<value>0.25</value>
</property>
<property>
<name>storage</name>
<type>Constant</type>
<value>1.e-10</value>
</property>
</properties>
</medium>
</media>
<time_loop>
<processes>
<process ref="LiquidFlow">
<nonlinear_solver>basic_picard</nonlinear_solver>
<convergence_criterion>
<type>DeltaX</type>
<norm_type>NORM2</norm_type>
<abstol>1.e-6</abstol>
</convergence_criterion>
<time_discretization>
<type>BackwardEuler</type>
</time_discretization>
<time_stepping>
<type>FixedTimeStepping</type>
<t_initial>0.0</t_initial>
<t_end>8640000</t_end>
<timesteps>
<pair>
<repeat>100</repeat>
<delta_t>86400</delta_t>
</pair>
</timesteps>
</time_stepping>
</process>
</processes>
<output>
<type>VTK</type>
<prefix>fractures_in_3D</prefix>
<timesteps>
<pair>
<repeat>10</repeat>
<each_steps>10</each_steps>
</pair>
</timesteps>
<variables>
<variable>pressure</variable>
<variable>v</variable>
</variables>
<suffix>ts{:timestep}_t_{:time}</suffix>
</output>
</time_loop>
<parameters>
<parameter>
<name>fracture_thickness</name>
<type>Group</type>
<group_id_property>MaterialIDs</group_id_property>
<index_values>
<index>0</index>
<value>1.0</value>
</index_values>
<index_values>
<index>1</index>
<value>0.1</value>
</index_values>
<index_values>
<index>2</index>
<value>0.1</value>
</index_values>
</parameter>
<parameter>
<name>k_rock</name>
<type>Constant</type>
<values>1.e-18 0.0 0.0 0.0 3e-18 0.0 0.0 0.0 3.e-18</values>
</parameter>
<parameter>
<name>p0</name>
<type>Function</type>
<expression>4.e+6+9810*(200-z)</expression>
</parameter>
<parameter>
<name>p_top</name>
<type>Constant</type>
<value>4.0e+6</value>
</parameter>
<parameter>
<name>p_bottom</name>
<type>Constant</type>
<value>5.962e+6</value>
</parameter>
</parameters>
<process_variables>
<process_variable>
<name>pressure</name>
<components>1</components>
<order>1</order>
<initial_condition>p0</initial_condition>
<boundary_conditions>
<boundary_condition>
<type>Dirichlet</type>
<mesh>top_surface</mesh>
<parameter>p_top</parameter>
</boundary_condition>
<boundary_condition>
<type>Dirichlet</type>
<mesh>bottom_surface</mesh>
<parameter>p_bottom</parameter>
</boundary_condition>
</boundary_conditions>
</process_variable>
</process_variables>
<nonlinear_solvers>
<nonlinear_solver>
<name>basic_picard</name>
<type>Picard</type>
<max_iter>10</max_iter>
<linear_solver>general_linear_solver</linear_solver>
</nonlinear_solver>
</nonlinear_solvers>
<linear_solvers>
<linear_solver>
<name>general_linear_solver</name>
<lis>-i cg -p jacobi -tol 1e-20 -maxiter 10000</lis>
<eigen>
<solver_type>CG</solver_type>
<precon_type>DIAGONAL</precon_type>
<max_iteration_step>10000</max_iteration_step>
<error_tolerance>1e-20</error_tolerance>
</eigen>
<petsc>
<prefix>lf</prefix>
<parameters>-lf_ksp_type cg -lf_pc_type bjacobi -lf_ksp_rtol 1e-16 -lf_ksp_max_it 10000</parameters>
</petsc>
</linear_solver>
</linear_solvers>
</OpenGeoSysProject>
1.12.0