line_source_term_x_0.5_y_0.5.prj 4.85 KB
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<?xml version="1.0" encoding="ISO-8859-1"?>
<OpenGeoSysProject>
    <meshes>
        <mesh>cube_1x1x1_hex_1e3.vtu</mesh>
        <mesh>line_at_x_0.5_y_0.5.vtu</mesh>
        <mesh>cube_1x1x1_hex_1e3_right.vtu</mesh>
    </meshes>
    <processes>
        <process>
            <name>HeatConduction</name>
            <type>HEAT_CONDUCTION</type>
            <integration_order>2</integration_order>
            <process_variables>
                <process_variable>temperature</process_variable>
            </process_variables>
            <secondary_variables>
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                <secondary_variable internal_name="heat_flux" output_name="heat_flux"/>
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            </secondary_variables>
        </process>
    </processes>
    <time_loop>
        <processes>
            <process ref="HeatConduction">
                <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>
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            <prefix>3D_line_source_term</prefix>
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            <timesteps>
                <pair>
                    <repeat> 10000 </repeat>
                    <each_steps> 1 </each_steps>
                </pair>
            </timesteps>
            <variables>
                <variable> temperature </variable>
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                <variable> heat_flux </variable>
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            </variables>
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            <suffix>_ts_{:timestep}_t_{:time}</suffix>
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        </output>
    </time_loop>
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    <media>
        <medium id="0">
            <phases/>
            <properties>
                <property>
                    <name>thermal_conductivity</name>
                    <type>Constant</type>
                    <value>1</value>
                </property>
                <property>
                    <name>density</name>
                    <type>Constant</type>
                    <value>1</value>
                </property>
                <property>
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                    <name>specific_heat_capacity</name>
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                    <type>Constant</type>
                    <value>1</value>
                </property>
            </properties>
        </medium>
    </media>
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    <parameters>
        <parameter>
            <name>T0</name>
            <type>Constant</type>
            <value>0</value>
        </parameter>
        <parameter>
            <name>HeatSource</name>
            <type>Constant</type>
            <value>1</value>
        </parameter>
    </parameters>
    <process_variables>
        <process_variable>
            <name>temperature</name>
            <components>1</components>
            <order>1</order>
            <initial_condition>T0</initial_condition>
            <boundary_conditions>
                <boundary_condition>
                    <mesh>cube_1x1x1_hex_1e3_right</mesh>
                    <type>Dirichlet</type>
                    <parameter>T0</parameter>
                </boundary_condition>
            </boundary_conditions>
            <source_terms>
                <source_term>
                    <mesh>line_at_x_0.5_y_0.5</mesh>
                    <type>Line</type>
                    <parameter>HeatSource</parameter>
                </source_term>
            </source_terms>
        </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-16 -maxiter 10000</lis>
            <eigen>
                <solver_type>CG</solver_type>
                <precon_type>DIAGONAL</precon_type>
                <max_iteration_step>10000</max_iteration_step>
                <error_tolerance>1e-16</error_tolerance>
            </eigen>
            <petsc>
                <prefix>gw</prefix>
                <parameters>-gw_ksp_type cg -gw_pc_type bjacobi -gw_ksp_rtol 1e-16 -gw_ksp_max_it 10000</parameters>
            </petsc>
        </linear_solver>
    </linear_solvers>
</OpenGeoSysProject>