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OGS
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OGS
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<OpenGeoSysProject>
<meshes>
<mesh>mesh_domain_trans.vtu</mesh>
<mesh>mesh_boundary_surf.vtu</mesh>
<mesh>mesh_boundary_down.vtu</mesh>
<mesh>mesh_boundary_left.vtu</mesh>
<mesh>mesh_boundary_right.vtu</mesh>
</meshes>
<python_script>pythonBCsOGS.py</python_script>
<processes>
<process>
<name>HM</name>
<type>HYDRO_MECHANICS</type>
<integration_order>3</integration_order>
<constitutive_relation>
<type>LinearElasticIsotropic</type>
<youngs_modulus>YoungModulus</youngs_modulus>
<poissons_ratio>PoissonRatio</poissons_ratio>
</constitutive_relation>
<initial_stress>InitialEffectiveStressField</initial_stress>
<process_variables>
<pressure>pressure</pressure>
<displacement>displacement</displacement>
</process_variables>
<specific_body_force>0 -9.81</specific_body_force>
<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="DarcyVelocity" />
</secondary_variables>
</process>
</processes>
<media>
<medium>
<phases>
<phase>
<type>Gas</type>
<properties>
<property>
<name>viscosity</name>
<type>Parameter</type>
<parameter_name>ViscosityWater</parameter_name>
</property>
<property>
<name>density</name>
<type>Parameter</type>
<parameter_name>DensityWater</parameter_name>
</property>
</properties>
</phase>
<phase>
<type>Solid</type>
<properties>
<property>
<name>density</name>
<type>Parameter</type>
<parameter_name>DensitySolid</parameter_name>
</property>
</properties>
</phase>
</phases>
<properties>
<property>
<name>porosity</name>
<type>Constant</type>
<value>0.2</value>
</property>
<property>
<name>biot_coefficient</name>
<type>Constant</type>
<value>1.0</value>
</property>
<property>
<name>permeability</name>
<type>Constant</type>
<value>1.25e-9</value>
</property>
<property>
<name>reference_temperature</name>
<type>Constant</type>
<value>293.15</value>
</property>
</properties>
</medium>
</media>
<parameters>
<parameter>
<name>YoungModulus</name>
<type>Constant</type>
<value>1.e6</value>
</parameter>
<parameter>
<name>PoissonRatio</name>
<type>Constant</type>
<value>0.40</value>
</parameter>
<parameter>
<name>DensitySolid</name>
<type>Constant</type>
<value>3000</value>
</parameter>
<parameter>
<name>ViscosityWater</name>
<type>Constant</type>
<value>1.e-3</value>
</parameter>
<parameter>
<name>DensityWater</name>
<type>Constant</type>
<value>1000</value>
</parameter>
<parameter>
<name>AmbientPressure</name>
<type>Constant</type>
<values>0</values>
</parameter>
<parameter>
<name>InitialPressureZero</name>
<type>Constant</type>
<values>0</values>
</parameter>
<parameter>
<name>InitialPressureField</name>
<type>Function</type>
<expression>-1000*9.81*y</expression>
</parameter>
<parameter>
<name>PressureProfile</name>
<type>Function</type>
<expression>-1000*9.81*y</expression>
</parameter>
<parameter>
<name>InitialDisplacementZero</name>
<type>Constant</type>
<values>0 0</values>
</parameter>
<parameter>
<name>ZeroDisplacement</name>
<type>Constant</type>
<value>0</value>
</parameter>
<parameter>
<name>InitialEffectiveStressZero</name>
<type>Constant</type>
<values>0 0 0 0</values>
</parameter>
<parameter>
<name>InitialEffectiveStressField</name>
<type>Function</type>
<expression>0.4 / (1-0.4) * ((0.2-1.0)*1000 + (1-0.2)*3000) * 9.81*y</expression>
<expression>((0.2-1.0)*1000 + (1-0.2)*3000) * 9.81*y</expression>
<expression>0.4 / (1-0.4) * ((0.2-1.0)*1000 + (1-0.2)*3000) * 9.81*y</expression>
<expression>0.0</expression>
</parameter>
</parameters>
<process_variables>
<process_variable>
<name>pressure</name>
<components>1</components>
<order>1</order>
<initial_condition>InitialPressureField</initial_condition>
<boundary_conditions>
<boundary_condition>
<mesh>mesh_boundary_surf</mesh>
<type>Python</type>
<bc_object>AmbientPressure_py</bc_object>
<flush_stdout>true</flush_stdout>
</boundary_condition>
<boundary_condition>
<mesh>mesh_boundary_right</mesh>
<type>Python</type>
<bc_object>PressureProfile_py</bc_object>
<flush_stdout>true</flush_stdout>
</boundary_condition>
</boundary_conditions>
</process_variable>
<process_variable>
<name>displacement</name>
<components>2</components>
<order>2</order>
<initial_condition>InitialDisplacementZero</initial_condition>
<boundary_conditions>
<boundary_condition>
<mesh>mesh_boundary_left</mesh>
<type>Python</type>
<component>0</component>
<bc_object>LateralDisplacement_py</bc_object>
<flush_stdout>true</flush_stdout>
</boundary_condition>
<boundary_condition>
<mesh>mesh_boundary_down</mesh>
<type>Python</type>
<component>1</component>
<bc_object>BottomDisplacement_py</bc_object>
<flush_stdout>true</flush_stdout>
</boundary_condition>
<boundary_condition>
<mesh>mesh_boundary_right</mesh>
<type>Python</type>
<component>0</component>
<bc_object>NormalStressProfile_py</bc_object>
<flush_stdout>true</flush_stdout>
</boundary_condition>
</boundary_conditions>
</process_variable>
</process_variables>
<time_loop>
<processes>
<process ref="HM">
<nonlinear_solver>basic_newton</nonlinear_solver>
<convergence_criterion>
<type>PerComponentDeltaX</type>
<norm_type>NORM2</norm_type>
<abstols>1e-8 1e-8 1e-8</abstols>
</convergence_criterion>
<time_discretization>
<type>BackwardEuler</type>
</time_discretization>
<time_stepping>
<type>FixedTimeStepping</type>
<t_initial>0</t_initial>
<t_end>1e6</t_end>
<timesteps>
<pair>
<repeat>1</repeat>
<delta_t>1e6</delta_t>
</pair>
</timesteps>
</time_stepping>
</process>
</processes>
<output>
<type>VTK</type>
<prefix>simHM_ground_python</prefix>
<timesteps>
<pair>
<repeat>100</repeat>
<each_steps>1</each_steps>
</pair>
</timesteps>
<variables>
<variable>displacement</variable>
<variable>sigma</variable>
<variable>pressure_interpolated</variable>
<variable>DarcyVelocity</variable>
</variables>
<suffix>ts{:timestep}_t_{:time}</suffix>
</output>
</time_loop>
<nonlinear_solvers>
<nonlinear_solver>
<name>basic_newton</name>
<type>Newton</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>
<precon_type>DIAGONAL</precon_type>
</eigen>
</linear_solver>
</linear_solvers>
</OpenGeoSysProject>
1.12.0