OGS
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<OpenGeoSysProject>
<mesh>inclined_2D_mesh.vtu</mesh>
<geometry>plane_r.gml</geometry>
<processes>
<process>
<name>LiquidFlow</name>
<type>LIQUID_FLOW</type>
<integration_order>2</integration_order>
<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>
</process>
</processes>
<media>
<medium>
<phases>
<phase>
<type>AqueousLiquid</type>
<properties>
<property>
<name>viscosity</name>
<type>Constant</type>
<value>1.e-3</value>
</property>
<property>
<name>density</name>
<type>Constant</type>
<value>1.e3</value>
</property>
</properties>
</phase>
</phases>
<properties>
<property>
<name>permeability</name>
<type>Parameter</type>
<parameter_name>k</parameter_name>
</property>
<property>
<name>reference_temperature</name>
<type>Constant</type>
<value>293.15</value>
</property>
<property>
<name>porosity</name>
<type>Constant</type>
<value>0.2</value>
</property>
<property>
<name>storage</name>
<type>Constant</type>
<value>0.0e-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>1</t_end>
<timesteps>
<pair>
<repeat>1</repeat>
<delta_t>1</delta_t>
</pair>
</timesteps>
</time_stepping>
</process>
</processes>
<output>
<type>VTK</type>
<prefix>hydrostatic_flow_in_inclined_2D_plane</prefix>
<timesteps>
<pair>
<repeat>1</repeat>
<each_steps>1</each_steps>
</pair>
</timesteps>
<variables>
<variable>pressure</variable>
<variable>v</variable>
</variables>
<suffix>ts_t{:time}</suffix>
</output>
</time_loop>
<parameters>
<parameter>
<name>k</name>
<type>Constant</type>
<values>1.e-12 0.0 0.0 0.0 5.e-12 0.0 0.0 0.0 0.0</values>
<use_local_coordinate_system>true</use_local_coordinate_system>
</parameter>
<parameter>
<name>p0</name>
<type>Constant</type>
<value>0</value>
</parameter>
<parameter>
<name>p_top</name>
<type>Constant</type>
<value>1.0e+5</value>
</parameter>
<parameter>
<name>b0</name>
<type>Constant</type>
<values>-0.5000001748438417 0.0 0.8660253028382761</values>
</parameter>
<parameter>
<name>b1</name>
<type>Constant</type>
<values>0.0 -1.0 0.0</values>
</parameter>
<parameter>
<name>b2</name>
<type>Constant</type>
<values>0.8660253028382761 0.0 0.5000001748438417</values>
</parameter>
</parameters>
<local_coordinate_system>
<basis_vector_0>b0</basis_vector_0>
<basis_vector_1>b1</basis_vector_1>
<basis_vector_2>b2</basis_vector_2>
</local_coordinate_system>
<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>geometry_top</mesh>
<parameter>p_top</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>