tm1_3Dsquare.prj 8.24 KB
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<?xml version="1.0" encoding="ISO-8859-1"?>
<OpenGeoSysProject>
    <mesh>tm1_3Dsquare.vtu</mesh>
    <geometry>tm1_3Dsquare.gml</geometry>
    <processes>
        <process>
            <name>ThermoMechanics</name>
            <type>THERMO_MECHANICS</type>
            <integration_order>3</integration_order>
            <constitutive_relation>
                <type>LinearElasticIsotropic</type>
                <youngs_modulus>E</youngs_modulus>
                <poissons_ratio>nu</poissons_ratio>
            </constitutive_relation>
            <specific_body_force>0 0 -9.81</specific_body_force>
            <process_variables>
                <temperature>temperature</temperature>
                <displacement>displacement</displacement>
            </process_variables>
            <secondary_variables>
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                <secondary_variable internal_name="epsilon" output_name="epsilon"/>
                <secondary_variable internal_name="sigma" output_name="sigma"/>
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            </secondary_variables>
        </process>
    </processes>
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    <media>
        <medium>
            <phases>
                <phase>
                    <type>Solid</type>
                    <properties>
                        <property>
                            <name>density</name>
                            <type>Constant</type>
                            <value>0.</value>
                        </property>
                        <property>
                            <name>thermal_expansivity</name>
                            <type>Constant</type>
                            <value>1e-3</value>
                        </property>
                        <property>
                            <name>thermal_conductivity</name>
                            <type>Constant</type>
                            <value>1</value>
                        </property>
                        <property>
                            <name>specific_heat_capacity</name>
                            <type>Constant</type>
                            <value>0</value>
                        </property>
                    </properties>
                </phase>
            </phases>
        </medium>
    </media>
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    <time_loop>
        <processes>
            <process ref="ThermoMechanics">
                <nonlinear_solver>basic_newton</nonlinear_solver>
                <convergence_criterion>
                    <type>PerComponentDeltaX</type>
                    <norm_type>NORM2</norm_type>
                    <reltols> 1e-9 1e-9 1e-9 1e-9 </reltols>
                </convergence_criterion>
                <time_discretization>
                    <type>BackwardEuler</type>
                </time_discretization>
                <time_stepping>
                    <type>FixedTimeStepping</type>
                    <t_initial>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>
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            <prefix>tm1_3Dsquare</prefix>
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            <data_mode>Ascii</data_mode>
            <compress_output>false</compress_output>
            <timesteps>
                <pair>
                    <repeat>1</repeat>
                    <each_steps>1</each_steps>
                </pair>
            </timesteps>
            <variables>
                <variable>temperature</variable>
                <variable>displacement</variable>
                <variable>sigma</variable>
                <variable>epsilon</variable>
            </variables>
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            <suffix>_ts_{:timestep}_t_{:time}</suffix>
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        </output>
    </time_loop>
    <parameters>
        <parameter>
            <name>E</name>
            <type>Group</type>
            <group_id_property>MaterialIDs</group_id_property>
            <index_values>
                <index>0</index>
                <value>1.0e+10</value>
            </index_values>
        </parameter>
        <parameter>
            <name>nu</name>
            <type>Group</type>
            <group_id_property>MaterialIDs</group_id_property>
            <index_values>
                <index>0</index>
                <value>0.2</value>
            </index_values>
        </parameter>
        <parameter>
            <name>zero</name>
            <type>Constant</type>
            <value>0.0</value>
        </parameter>
        <parameter>
            <name>initial_temperature</name>
            <type>Constant</type>
            <value> 0 </value>
        </parameter>
        <parameter>
            <name>initial_displacement</name>
            <type>Constant</type>
            <values>0 0 0</values>
        </parameter>
        <parameter>
            <name>T0</name>
            <type>Constant</type>
            <value>10</value>
        </parameter>
        <parameter>
            <name>T1</name>
            <type>Constant</type>
            <value>-10</value>
        </parameter>
    </parameters>
    <process_variables>
        <process_variable>
            <name>displacement</name>
            <components>3</components>
            <order>2</order>
            <initial_condition>initial_displacement</initial_condition>
            <boundary_conditions>
                <boundary_condition>
                    <geometrical_set>geometry</geometrical_set>
                    <geometry>SURFACE1</geometry>
                    <type>Dirichlet</type>
                    <component>0</component>
                    <parameter>zero</parameter>
                </boundary_condition>
                <boundary_condition>
                    <geometrical_set>geometry</geometrical_set>
                    <geometry>SURFACE2</geometry>
                    <type>Dirichlet</type>
                    <component>1</component>
                    <parameter>zero</parameter>
                </boundary_condition>
                <boundary_condition>
                    <geometrical_set>geometry</geometrical_set>
                    <geometry>POINT_ORIGIN</geometry>
                    <type>Dirichlet</type>
                    <component>2</component>
                    <parameter>zero</parameter>
                </boundary_condition>
            </boundary_conditions>
        </process_variable>
        <process_variable>
            <name>temperature</name>
            <components>1</components>
            <order>1</order>
            <initial_condition>initial_temperature</initial_condition>
            <boundary_conditions>
                <boundary_condition>
                    <geometrical_set>geometry</geometrical_set>
                    <geometry>SURFACE4</geometry>
                    <type>Dirichlet</type>
                    <component>0</component>
                    <parameter>T1</parameter>
                </boundary_condition>
                <boundary_condition>
                    <geometrical_set>geometry</geometrical_set>
                    <geometry>SURFACE5</geometry>
                    <type>Dirichlet</type>
                    <component>0</component>
                    <parameter>T0</parameter>
                </boundary_condition>
            </boundary_conditions>
        </process_variable>
    </process_variables>
    <nonlinear_solvers>
        <nonlinear_solver>
            <name>basic_newton</name>
            <type>Newton</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 bicgstab -p jacobi -tol 1e-2 -maxiter 10000</lis>
            <eigen>
                <solver_type>BiCGSTAB</solver_type>
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                <precon_type>ILUT</precon_type>
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                <max_iteration_step>10000</max_iteration_step>
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                <error_tolerance>1e-10</error_tolerance>
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            </eigen>
            <petsc>
                <prefix>tm</prefix>
                <parameters>-tm_ksp_type cg -tm_pc_type bjacobi -tm_ksp_rtol 1e-10 -tm_ksp_max_it 10000</parameters>
            </petsc>
        </linear_solver>
    </linear_solvers>
</OpenGeoSysProject>