square_1e2_UC_late.prj 7.91 KB
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<?xml version='1.0' encoding='ISO-8859-1'?>
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<OpenGeoSysProject>
    <mesh axially_symmetric="true">square_1x1_quad8_1e2.vtu</mesh>
    <geometry>square_1x1.gml</geometry>
    <processes>
        <process>
            <name>HM</name>
            <type>HYDRO_MECHANICS</type>
            <integration_order>3</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>
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            <secondary_variables/>
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            <specific_body_force>0 0</specific_body_force>
        </process>
    </processes>
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    <media>
        <medium>
            <phases>
                <phase>
                    <type>Gas</type>
                    <properties>
                        <property>
                            <name>viscosity</name>
                            <type>Constant</type>
                            <value>1e-3</value>
                        </property>
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                        <property>
                            <name>density</name>
                            <type>Constant</type>
                            <value>1.0e-6</value>
                        </property>
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                    </properties>
                </phase>
                <phase>
                    <type>Solid</type>
                    <properties>
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                        <property>
                            <name>density</name>
                            <type>Constant</type>
                            <value>1.2e-6</value>
                        </property>
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                    </properties>
                </phase>
            </phases>
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            <properties>
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                <property>
                    <name>porosity</name>
                    <type>Constant</type>
                    <value>0</value>
                </property>
                <property>
                    <name>biot_coefficient</name>
                    <type>Constant</type>
                    <value>1</value>
                </property>
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                <property>
                    <name>reference_temperature</name>
                    <type>Constant</type>
                    <value>293.15</value>
                </property>
                <property>
                    <name>permeability</name>
                    <type>Constant</type>
                    <value>1e-10</value>
                </property>
            </properties>
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        </medium>
    </media>
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    <time_loop>
        <processes>
            <process ref="HM">
                <nonlinear_solver>basic_newton</nonlinear_solver>
                <convergence_criterion>
                    <type>DeltaX</type>
                    <norm_type>NORM2</norm_type>
                    <abstol>1e-8</abstol>
                </convergence_criterion>
                <time_discretization>
                    <type>BackwardEuler</type>
                </time_discretization>
                <time_stepping>
                    <type>FixedTimeStepping</type>
                    <t_initial>0</t_initial>
                    <t_end>1000</t_end>
                    <timesteps>
                        <pair>
                            <repeat>10</repeat>
                            <delta_t>100</delta_t>
                        </pair>
                    </timesteps>
                </time_stepping>
            </process>
        </processes>
        <output>
            <type>VTK</type>
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            <prefix>square_1e2_UC_late</prefix>
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            <timesteps>
                <pair>
                    <repeat>1</repeat>
                    <each_steps>10</each_steps>
                </pair>
            </timesteps>
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            <variables>
                <variable>displacement</variable>
                <variable>pressure</variable>
            </variables>
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            <suffix>_ts_{:timestep}_t_{:time}</suffix>
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        </output>
    </time_loop>
    <parameters>
        <!-- Mechanics -->
        <parameter>
            <name>E</name>
            <type>Constant</type>
            <value>30000.0</value>
        </parameter>
        <parameter>
            <name>nu</name>
            <type>Constant</type>
            <value>0.2</value>
        </parameter>
        <!-- Model parameters -->
        <parameter>
            <name>displacement0</name>
            <type>Constant</type>
            <values>0 0</values>
        </parameter>
        <parameter>
            <name>pressure_ic</name>
            <type>Constant</type>
            <values>0</values>
        </parameter>
        <parameter>
            <name>dirichlet0</name>
            <type>Constant</type>
            <value>0</value>
        </parameter>
        <parameter>
            <name>displacementTop</name>
            <type>Constant</type>
            <value>-0.05</value>
        </parameter>
    </parameters>
    <process_variables>
        <process_variable>
            <name>displacement</name>
            <components>2</components>
            <order>2</order>
            <initial_condition>displacement0</initial_condition>
            <boundary_conditions>
                <boundary_condition>
                    <geometrical_set>square_1x1_geometry</geometrical_set>
                    <geometry>left</geometry>
                    <type>Dirichlet</type>
                    <component>0</component>
                    <parameter>dirichlet0</parameter>
                </boundary_condition>
                <boundary_condition>
                    <geometrical_set>square_1x1_geometry</geometrical_set>
                    <geometry>bottom</geometry>
                    <type>Dirichlet</type>
                    <component>1</component>
                    <parameter>dirichlet0</parameter>
                </boundary_condition>
                <boundary_condition>
                    <geometrical_set>square_1x1_geometry</geometrical_set>
                    <geometry>top</geometry>
                    <type>Dirichlet</type>
                    <component>1</component>
                    <parameter>displacementTop</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>
                    <geometrical_set>square_1x1_geometry</geometrical_set>
                    <geometry>right</geometry>
                    <type>Dirichlet</type>
                    <component>0</component>
                    <parameter>dirichlet0</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-16 -maxiter 10000</lis>
            <eigen>
                <solver_type>BiCGSTAB</solver_type>
                <precon_type>ILUT</precon_type>
                <max_iteration_step>10000</max_iteration_step>
                <error_tolerance>1e-16</error_tolerance>
            </eigen>
            <petsc>
                <prefix>sd</prefix>
                <parameters>-sd_ksp_type cg -sd_pc_type bjacobi -sd_ksp_rtol 1e-16 -sd_ksp_max_it 10000</parameters>
            </petsc>
        </linear_solver>
    </linear_solvers>
</OpenGeoSysProject>