Add heat transfer

README.md

@@ -115,6 +115,7 @@ CabanaPD currently includes the following:
    - Elastic (no failure)
    - Brittle fracture
  - Thermomechanics (bond-based only)
+   - Optional heat transfer (elastic only)
  - Time integration
    - Velocity Verlet
  - Pre-crack creation

examples/thermomechanics/CMakeLists.txt

@@ -4,4 +4,10 @@ target_link_libraries(ThermalDeformation LINK_PUBLIC CabanaPD)
 add_executable(ThermalCrack thermal_crack.cpp)
 target_link_libraries(ThermalCrack LINK_PUBLIC CabanaPD)
 
-install(TARGETS ThermalDeformation ThermalCrack DESTINATION ${CMAKE_INSTALL_BINDIR})
+add_executable(ThermalDeformationHeatTransfer thermal_deformation_heat_transfer.cpp)
+target_link_libraries(ThermalDeformationHeatTransfer LINK_PUBLIC CabanaPD)
+
+add_executable(ThermalDeformationHeatTransferMonoblock thermal_deformation_heat_transfer_monoblock.cpp)
+target_link_libraries(ThermalDeformationHeatTransferMonoblock LINK_PUBLIC CabanaPD)
+
+install(TARGETS ThermalDeformation ThermalCrack ThermalDeformationHeatTransfer ThermalDeformationHeatTransferMonoblock DESTINATION ${CMAKE_INSTALL_BINDIR})

examples/thermomechanics/inputs/thermal_crack_temp.json

@@ -0,0 +1,16 @@
+{
+    "num_cells"             : {"value": [251, 51, 5]},
+    "system_size"           : {"value": [0.05, 0.01, 0.001], "unit": "m"},
+    "density"               : {"value": 3980, "unit": "kg/m^3"},
+    "elastic_modulus"       : {"value": 370e+9, "unit": "Pa"},
+    "fracture_energy"       : {"value": 24.32, "unit": "J/m^2"},
+    "thermal_coefficient"   : {"value": 7.5E-6, "unit": "oC^{-1}"},
+    "reference_temperature" : {"value": 300.0, "unit": "oC"},
+    "water_temperature"     : {"value": 20.0, "unit": "oC"},
+    "pulse_ramping_time"    : {"value": 0.001, "unit": "s"},
+    "horizon"               : {"value": 6.0e-4, "unit": "m"},  
+    "final_time"            : {"value": 0.002, "unit": "s"},
+    "timestep"              : {"value": 3E-8, "unit": "s"},
+    "output_frequency"      : {"value": 500},
+    "output_reference"      : {"value": false}
+}

examples/thermomechanics/inputs/thermal_deformation.json

@@ -1,13 +1,15 @@
 {
-    "num_cells"             : {"value": [100, 30, 3]},
-    "system_size"           : {"value": [1.0, 0.3, 0.03], "unit": "m"},
-    "density"               : {"value": 3980,  "unit": "kg/m^3"},
-    "elastic_modulus"       : {"value": 370e+9, "unit": "Pa"},
-    "thermal_coefficient"   : {"value": 7.5E-6, "unit": "oC^{-1}"},
-    "reference_temperature" : {"value": 20.0, "unit": "oC"},
-    "horizon"               : {"value": 0.03, "unit": "m"},  
-    "final_time"            : {"value": 0.01, "unit": "s"},
-    "timestep"              : {"value": 7.5E-7,  "unit": "s"},
-    "output_frequency"      : {"value": 100},
-    "output_reference"      : {"value": true}
+    "num_cells"               : {"value": [101, 31, 3]},
+    "system_size"             : {"value": [1.0, 0.3, 0.03], "unit": "m"},
+    "density"                 : {"value": 3980,  "unit": "kg/m^3"},
+    "elastic_modulus"         : {"value": 370e+9, "unit": "Pa"},
+    "thermal_expansion_coeff" : {"value": 7.5E-6, "unit": "oC^{-1}"},
+    "thermal_conductivity"    : {"value": 31, "unit": "W/(m.K)"},
+    "specific_heat_capacity"  : {"value": 880, "unit": "J/(kg.K)"},
+    "reference_temperature"   : {"value": 20.0, "unit": "oC"},
+    "horizon"                 : {"value": 0.03, "unit": "m"},  
+    "final_time"              : {"value": 0.01, "unit": "s"},
+    "timestep"                : {"value": 7.5E-7,  "unit": "s"},
+    "output_frequency"        : {"value": 100},
+    "output_reference"        : {"value": true}
 }

examples/thermomechanics/inputs/thermal_deformation_cube.json

@@ -0,0 +1,16 @@
+{
+    "num_cells"               : {"value": [40, 40, 40]},
+    "system_size"             : {"value": [0.1, 0.1, 0.1], "unit": "m"},
+    "density"                 : {"value": 8915,  "unit": "kg/m^3"},
+    "elastic_modulus"         : {"value": 115e+9, "unit": "Pa"},
+    "thermal_expansion_coeff" : {"value": 17e-6, "unit": "oC^{-1}"},
+    "thermal_conductivity"    : {"value": 387, "unit": "W/(m.K)"},
+    "specific_heat_capacity"  : {"value": 385, "unit": "J/(kg.K)"},
+    "reference_temperature"   : {"value": 100.0, "unit": "oC"},
+    "horizon"                 : {"value": 0.0075, "unit": "m"},  
+    "final_time"              : {"value": 8, "unit": "s"},
+    "timestep"                : {"value": 5.1e-8, "unit": "s"},
+    "thermal_subcycle_steps": {"value": 100},
+    "output_frequency"        : {"value": 1},
+    "output_reference"        : {"value": true}
+}

examples/thermomechanics/inputs/thermal_deformation_cube_temp.json

@@ -0,0 +1,16 @@
+{
+    "num_cells"               : {"value": [51, 51, 51]},
+    "system_size"             : {"value": [0.1, 0.1, 0.1], "unit": "m"},
+    "density"                 : {"value": 8915,  "unit": "kg/m^3"},
+    "elastic_modulus"         : {"value": 115e+9, "unit": "Pa"},
+    "thermal_expansion_coeff" : {"value": 17e-6, "unit": "oC^{-1}"},
+    "thermal_conductivity"    : {"value": 387, "unit": "W/(m.K)"},
+    "specific_heat_capacity"  : {"value": 385, "unit": "J/(kg.K)"},
+    "reference_temperature"   : {"value": 100.0, "unit": "oC"},
+    "horizon"                 : {"value": 0.006, "unit": "m"},  
+    "final_time"              : {"value": 8, "unit": "s"},
+    "timestep"                : {"value": 0.0195,  "unit": "s"},
+    "thermal_subcycle_steps"  : {"value": 1},
+    "output_frequency"        : {"value": 10},
+    "output_reference"        : {"value": true}
+}

examples/thermomechanics/inputs/thermal_deformation_temp.json

@@ -0,0 +1,15 @@
+{
+    "num_cells"               : {"value": [61, 61, 61]},
+    "system_size"             : {"value": [0.3, 0.3, 0.3], "unit": "m"},
+    "density"                 : {"value": 3980,  "unit": "kg/m^3"},
+    "elastic_modulus"         : {"value": 370e+9, "unit": "Pa"},
+    "thermal_expansion_coeff" : {"value": 7.5E-6, "unit": "oC^{-1}"},
+    "thermal_conductivity"    : {"value": 31, "unit": "W/(m.K)"},
+    "specific_heat_capacity"  : {"value": 880, "unit": "J/(kg.K)"},
+    "reference_temperature"   : {"value": 20.0, "unit": "oC"},
+    "horizon"                 : {"value": 0.015, "unit": "m"},  
+    "final_time"              : {"value": 0.01, "unit": "s"},
+    "timestep"                : {"value": 1.0E-7,  "unit": "s"},
+    "output_frequency"        : {"value": 100},
+    "output_reference"        : {"value": false}
+}

examples/thermomechanics/inputs/thermal_monoblock_deformation_W.json

@@ -0,0 +1,17 @@
+{
+    "num_cells"               : {"value": [51, 51, 21]},
+    "system_size"             : {"value": [0.028, 0.028, 0.012], "unit": "m"},
+    "cylindrical_hole"        : {"value": [0.0, -0.0005, 0.0085], "unit": "m"},
+    "density"                 : {"value": 19300,  "unit": "kg/m^3"},
+    "elastic_modulus"         : {"value": 400e+9, "unit": "Pa"},
+    "thermal_expansion_coeff" : {"value": 4.4E-6, "unit": "oC^{-1}"},
+    "thermal_conductivity"    : {"value": 146, "unit": "W/(m.K)"},
+    "specific_heat_capacity"  : {"value": 134, "unit": "J/(kg.K)"},
+    "reference_temperature"   : {"value": 150.0, "unit": "oC"},
+    "horizon"                 : {"value": 0.0017, "unit": "m"},  
+    "final_time"              : {"value": 1, "unit": "s"},
+    "timestep"                : {"value": 0.0014,  "unit": "s"},
+    "thermal_subcycle_steps"  : {"value": 1},
+    "output_frequency"        : {"value": 10},
+    "output_reference"        : {"value": true}
+}

examples/thermomechanics/inputs/thermal_monoblock_deformation_W_ref.json

@@ -0,0 +1,17 @@
+{
+    "num_cells"              : {"value": [101, 101, 43]},
+    "system_size"            : {"value": [0.028, 0.028, 0.012], "unit": "m"},
+    "cylindrical_hole"       : {"value": [0.0, -0.0005, 0.0085], "unit": "m"},
+    "density"                : {"value": 19300,  "unit": "kg/m^3"},
+    "elastic_modulus"        : {"value": 400e+9, "unit": "Pa"},
+    "thermal_coefficient"    : {"value": 4.4E-6, "unit": "oC^{-1}"},
+    "thermal_conductivity"   : {"value": 146, "unit": "W/(m.K)"},
+    "specific_heat_capacity" : {"value": 134, "unit": "J/(kg.K)"},
+    "reference_temperature"  : {"value": 1600.0, "unit": "oC"},
+    "horizon"                : {"value": 8.4e-4, "unit": "m"},  
+    "final_time"             : {"value": 0.5, "unit": "s"},
+    "timestep"               : {"value": 7.5E-4,  "unit": "s"},
+    "thermal_subcycle_steps" : {"value": 1},
+    "output_frequency"       : {"value": 100},
+    "output_reference"       : {"value": true}
+}

examples/thermomechanics/thermal_deformation.cpp

@@ -41,7 +41,7 @@ void thermalDeformationExample( const std::string filename )
     double nu = 0.25;
     double K = E / ( 3 * ( 1 - 2 * nu ) );
     double delta = inputs["horizon"];
-    double alpha = inputs["thermal_coefficient"];
+    double alpha = inputs["thermal_expansion_coeff"];
 
     // Problem parameters
     double temp0 = inputs["reference_temperature"];