<OpenGeoSysProject>
  <meshes>
    <mesh>joint_sigma_20MPa_midplane_tri.vtu</mesh>
    <mesh>left.vtu</mesh>
    <mesh>right.vtu</mesh>
    <mesh>bottom.vtu</mesh>
    <mesh>top.vtu</mesh>
  </meshes>
  <processes>
    <process>
      <name>LiquidFlow</name>
      <type>LIQUID_FLOW</type>
      <integration_order>2</integration_order>
      <process_variables>
        <process_variable>pressure</process_variable>
      </process_variables>
      <secondary_variables>
        <secondary_variable internal_name="darcy_velocity" output_name="v" />
      </secondary_variables>
      <equation_balance_type>mass</equation_balance_type>
      <specific_body_force>0.0 0.0 -9.8</specific_body_force>
      <aperture_size>
        <parameter>fracture_thickness_const</parameter>
      </aperture_size>
    </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</reference_value>
              <independent_variable>
                <variable_name>liquid_phase_pressure</variable_name>
                <reference_condition>1e5</reference_condition>
                <slope>4.5e-7</slope>
              </independent_variable>
            </property>
          </properties>
        </phase>
      </phases>
      <properties>
        <property>
          <name>permeability</name>
          <type>Parameter</type>
          <parameter_name>kappa1_frac</parameter_name>
        </property>
        <property>
          <name>reference_temperature</name>
          <type>Constant</type>
          <value>293.15</value>
        </property>
        <property>
          <name>porosity</name>
          <type>Parameter</type>
          <parameter_name>constant_porosity_parameter</parameter_name>
        </property>
        <property>
          <name>storage</name>
          <type>Constant</type>
          <value>0.0</value>
        </property>
      </properties>
    </medium>
  </media>
  <time_loop>
    <processes>
      <process ref="LiquidFlow">
        <nonlinear_solver>basic_picard</nonlinear_solver>
        <convergence_criterion>
          <type>PerComponentDeltaX</type>
          <norm_type>NORM2</norm_type>
          <reltols>1e-10</reltols>
        </convergence_criterion>
        <time_discretization>
          <type>BackwardEuler</type>
        </time_discretization>
        <time_stepping>
          <type>IterationNumberBasedTimeStepping</type>
          <t_initial>0.0</t_initial>
          <t_end>10</t_end>
          <initial_dt>1e-2</initial_dt>
          <minimum_dt>1.e-6</minimum_dt>
          <maximum_dt>1.0</maximum_dt>
          <number_iterations>1 7 11 15</number_iterations>
          <multiplier>1.4 1.2 0.9 0.5</multiplier>
        </time_stepping>
      </process>
    </processes>
    <output>
      <type>VTK</type>
      <prefix>fracture_block_conduct</prefix>
      <timesteps>
        <pair>
          <repeat>1</repeat>
          <each_steps>1</each_steps>
        </pair>
      </timesteps>
      <variables />
      <suffix>ts{:timestep}_t_{:time}</suffix>
    </output>
  </time_loop>
  <parameters>
    <parameter>
      <name>constant_porosity_parameter</name>
      <type>Constant</type>
      <value>0.005</value>
    </parameter>
    <parameter>
      <name>p0</name>
      <type>Constant</type>
      <value>100000</value>
    </parameter>
    <parameter>
      <name>p_left</name>
      <type>Constant</type>
      <value>500000</value>
    </parameter>
    <parameter>
      <name>p_right</name>
      <type>Constant</type>
      <value>100000</value>
    </parameter>
    <parameter>
      <name>q_left</name>
      <type>Constant</type>
      <value>3e-6</value>
    </parameter>
    <parameter>
      <name>kappa1_frac</name>
      <type>MeshElement</type>
      <field_name>permeability_cubic</field_name>
    </parameter>
    <parameter>
      <name>fracture_thickness_const</name>
      <type>MeshElement</type>
      <field_name>aperture_closed</field_name>
    </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>right</mesh>
          <parameter>p_right</parameter>
        </boundary_condition>
        <boundary_condition>
          <type>Dirichlet</type>
          <mesh>left</mesh>
          <parameter>p_left</parameter>
        </boundary_condition>
      </boundary_conditions>
    </process_variable>
  </process_variables>
  <nonlinear_solvers>
    <nonlinear_solver>
      <name>basic_picard</name>
      <type>Picard</type>
      <max_iter>100</max_iter>
      <linear_solver>general_linear_solver</linear_solver>
    </nonlinear_solver>
  </nonlinear_solvers>
  <linear_solvers>
    <linear_solver>
      <name>general_linear_solver</name>
      <eigen>
        <solver_type>SparseLU</solver_type>
        <scaling>true</scaling>
      </eigen>
    </linear_solver>
  </linear_solvers>
</OpenGeoSysProject>