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OGS
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OGS
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<OpenGeoSysProject>
<meshes>
<mesh>3bhes.vtu</mesh>
<mesh>3bhes_1U_BHE_1_mesh.vtu</mesh>
</meshes>
<processes>
<process>
<name>HeatTransportBHE</name>
<type>HEAT_TRANSPORT_BHE</type>
<integration_order>2</integration_order>
<process_variables>
<process_variable>temperature_soil</process_variable>
<process_variable>temperature_BHE1</process_variable>
<process_variable>temperature_BHE2</process_variable>
<process_variable>temperature_BHE3</process_variable>
</process_variables>
<borehole_heat_exchangers>
<borehole_heat_exchanger>
<type>1U</type>
<flow_and_temperature_control>
<type>TemperatureCurveConstantFlow</type>
<flow_rate>2.0e-4</flow_rate>
<temperature_curve>inflow_temperature</temperature_curve>
</flow_and_temperature_control>
<borehole>
<length>50.0</length>
<diameter>0.126</diameter>
</borehole>
<grout>
<density>2190.0</density>
<porosity>0.0</porosity>
<specific_heat_capacity>1735.160</specific_heat_capacity>
<thermal_conductivity>0.806</thermal_conductivity>
</grout>
<pipes>
<inlet>
<diameter>0.013665</diameter>
<wall_thickness>0.003035</wall_thickness>
<wall_thermal_conductivity>0.39</wall_thermal_conductivity>
</inlet>
<outlet>
<diameter>0.013665</diameter>
<wall_thickness>0.003035</wall_thickness>
<wall_thermal_conductivity>0.39</wall_thermal_conductivity>
</outlet>
<distance_between_pipes>0.053</distance_between_pipes>
<longitudinal_dispersion_length>0.001</longitudinal_dispersion_length>
</pipes>
<refrigerant>
<density>992.92</density>
<viscosity>0.00067418</viscosity>
<specific_heat_capacity>4198</specific_heat_capacity>
<thermal_conductivity>0.62863</thermal_conductivity>
<reference_temperature>298.15</reference_temperature>
</refrigerant>
</borehole_heat_exchanger>
<borehole_heat_exchanger>
<type>2U</type>
<flow_and_temperature_control>
<type>TemperatureCurveConstantFlow</type>
<flow_rate>2.0e-4</flow_rate>
<temperature_curve>inflow_temperature</temperature_curve>
</flow_and_temperature_control>
<borehole>
<length>50.0</length>
<diameter>0.126</diameter>
</borehole>
<grout>
<density>2190.0</density>
<porosity>0.0</porosity>
<specific_heat_capacity>1735.160</specific_heat_capacity>
<thermal_conductivity>0.806</thermal_conductivity>
</grout>
<pipes>
<inlet>
<diameter>0.013665</diameter>
<wall_thickness>0.003035</wall_thickness>
<wall_thermal_conductivity>0.39</wall_thermal_conductivity>
</inlet>
<outlet>
<diameter>0.013665</diameter>
<wall_thickness>0.003035</wall_thickness>
<wall_thermal_conductivity>0.39</wall_thermal_conductivity>
</outlet>
<distance_between_pipes>0.053</distance_between_pipes>
<longitudinal_dispersion_length>0.001</longitudinal_dispersion_length>
</pipes>
<refrigerant>
<density>992.92</density>
<viscosity>0.00067418</viscosity>
<specific_heat_capacity>4198</specific_heat_capacity>
<thermal_conductivity>0.62863</thermal_conductivity>
<reference_temperature>298.15</reference_temperature>
</refrigerant>
</borehole_heat_exchanger>
<borehole_heat_exchanger>
<type>1U</type>
<flow_and_temperature_control>
<type>TemperatureCurveConstantFlow</type>
<flow_rate>2.0e-4</flow_rate>
<temperature_curve>inflow_temperature</temperature_curve>
</flow_and_temperature_control>
<borehole>
<length>50.0</length>
<diameter>0.126</diameter>
</borehole>
<grout>
<density>2190.0</density>
<porosity>0.0</porosity>
<specific_heat_capacity>1735.160</specific_heat_capacity>
<thermal_conductivity>0.806</thermal_conductivity>
</grout>
<pipes>
<inlet>
<diameter>0.013665</diameter>
<wall_thickness>0.003035</wall_thickness>
<wall_thermal_conductivity>0.39</wall_thermal_conductivity>
</inlet>
<outlet>
<diameter>0.013665</diameter>
<wall_thickness>0.003035</wall_thickness>
<wall_thermal_conductivity>0.39</wall_thermal_conductivity>
</outlet>
<distance_between_pipes>0.053</distance_between_pipes>
<longitudinal_dispersion_length>0.001</longitudinal_dispersion_length>
</pipes>
<refrigerant>
<density>992.92</density>
<viscosity>0.00067418</viscosity>
<specific_heat_capacity>4198</specific_heat_capacity>
<thermal_conductivity>0.62863</thermal_conductivity>
<reference_temperature>298.15</reference_temperature>
</refrigerant>
</borehole_heat_exchanger>
</borehole_heat_exchangers>
</process>
</processes>
<media>
<medium id="0">
<phases>
<phase>
<type>AqueousLiquid</type>
<properties>
<property>
<name>phase_velocity</name>
<type>Constant</type>
<value>0 0 0</value>
</property>
<property>
<name>specific_heat_capacity</name>
<type>Constant</type>
<value>4068</value>
</property>
<property>
<name>density</name>
<type>Constant</type>
<value>992.92</value>
</property>
</properties>
</phase>
<phase>
<type>Solid</type>
<properties>
<property>
<name>specific_heat_capacity</name>
<type>Constant</type>
<value>1780</value>
</property>
<property>
<name>density</name>
<type>Constant</type>
<value>1120</value>
</property>
</properties>
</phase>
<phase>
<type>Gas</type>
<properties>
<property>
<name>specific_heat_capacity</name>
<type>Constant</type>
<value>1000</value>
</property>
<property>
<name>density</name>
<type>Constant</type>
<value>2500</value>
</property>
</properties>
</phase>
</phases>
<properties>
<property>
<name>porosity</name>
<type>Constant</type>
<value>0</value>
</property>
<property>
<name>thermal_conductivity</name>
<type>Constant</type>
<value>2.4</value>
</property>
<property>
<name>thermal_longitudinal_dispersivity</name>
<type>Constant</type>
<value>0</value>
</property>
<property>
<name>thermal_transversal_dispersivity</name>
<type>Constant</type>
<value>0</value>
</property>
</properties>
</medium>
</media>
<time_loop>
<processes>
<process ref="HeatTransportBHE">
<nonlinear_solver>basic_picard</nonlinear_solver>
<convergence_criterion>
<type>DeltaX</type>
<norm_type>NORM2</norm_type>
<reltol>1.e-10</reltol>
</convergence_criterion>
<time_discretization>
<type>BackwardEuler</type>
</time_discretization>
<time_stepping>
<type>FixedTimeStepping</type>
<t_initial>0.0</t_initial>
<t_end>600</t_end>
<timesteps>
<pair>
<repeat>10</repeat>
<delta_t>60</delta_t>
</pair>
</timesteps>
</time_stepping>
</process>
</processes>
<outputs>
<output>
<type>VTK</type>
<prefix>{:meshname}</prefix>
<timesteps>
<pair>
<repeat>10</repeat>
<each_steps>1</each_steps>
</pair>
</timesteps>
<meshes>
<mesh>3bhes</mesh>
<mesh material_ids="1">3bhes</mesh>
<mesh>3bhes_1U_BHE_1_mesh</mesh>
</meshes>
<variables>
<variable>temperature_soil</variable>
<variable>temperature_BHE1</variable>
<variable>temperature_BHE2</variable>
<variable>temperature_BHE3</variable>
</variables>
<suffix>ts{:timestep}_t_{:time}</suffix>
</output>
</outputs>
</time_loop>
<parameters>
<parameter>
<name>T0</name>
<type>Constant</type>
<value>305</value>
</parameter>
<parameter>
<name>T0_BHE_1</name>
<type>Constant</type>
<values>295 295 295 295</values>
</parameter>
<parameter>
<name>T0_BHE_2</name>
<type>Constant</type>
<values>295 295 295 295 295 295 295 295</values>
</parameter>
</parameters>
<process_variables>
<process_variable>
<name>temperature_soil</name>
<components>1</components>
<order>1</order>
<initial_condition>T0</initial_condition>
</process_variable>
<process_variable>
<name>temperature_BHE1</name>
<components>4</components>
<order>1</order>
<initial_condition>T0_BHE_1</initial_condition>
</process_variable>
<process_variable>
<name>temperature_BHE2</name>
<components>8</components>
<order>1</order>
<initial_condition>T0_BHE_2</initial_condition>
</process_variable>
<process_variable>
<name>temperature_BHE3</name>
<components>4</components>
<order>1</order>
<initial_condition>T0_BHE_1</initial_condition>
</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>
<lis>-i cg -p jacobi -tol 1e-16 -maxiter 10000</lis>
<eigen>
<solver_type>BiCGSTAB</solver_type>
<precon_type>ILUT</precon_type>
<max_iteration_step>1000</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>
<curves>
<curve>
<name>inflow_temperature</name>
<coords>0 600</coords>
<values>295 295</values>
</curve>
</curves>
</OpenGeoSysProject>
1.12.0