Example Step 3 Boundary conditions extraction

 

This datafile is used to extract spatial grids with displacement data at sub-model boundaries from the large scale model. To this end the final restart file for the large scale model and the sub-model boundary coordinates spatial grids created in Step 2 are invoked. The final restart file for the large scale model points to the target plot files that contain the displacement data to be extracted.

 

Data file for this exercise is located in directory: SubMod_001\Step3\Data. Look for ! TODO  text in the datafile and follow the instructions.

 

 

Basic Set Up: Data File Description

The initial data file for the project is: SubMod_001\Step3\Data\Submod_001_Step3.dat.   This datafile is very simple and does not contain any analysis data. It comprises:

1A Restart_read_data to read the final large scale model restart file.

2One Include data structure for each of the sub-model boundary spatial grids.

3A Spatial_grid_output data structure to export spatial grids with the displacements at sub-model boundaries.

 

 

Data File

 

 

* Restart_read_data

! ----------------------------------------

 Restart_file_name     Submod_001_Step1_stage_02

 

1The restart file "Submod_001_Step1_stage_02.rst" is read. This file has been generated at the end of the second stage during the large scale model simulation.

 

Include data structures are used to invoke the sub-model boundaries.

 

Data File

 

 

* Include

! ---------------------------------

 Filename   Submod_001_Step2_bound_Base.spat

 

* Include

! ---------------------------------

 Filename   Submod_001_Step2_bound_West.spat

 

* Include

! ---------------------------------

 Filename   Submod_001_Step2_bound_East.spat

 

* Include

! ---------------------------------

 Filename   Submod_001_Step2_bound_Top_surface.spat

 

* Include

! ---------------------------------

 Filename   Submod_001_Step2_bound_North.spat

 

* Include

! ---------------------------------

 Filename   Submod_001_Step2_bound_South.spat

 

1One Include data structure for each sub-model boundary is required.

 

The Spatial_grid_output data structure is used to output displacement data for the sub-model boundaries spatial grids at times 0.0, 0.25 and 0.5 Ma.

 

Data File

 

 

* Spatial_grid_output

! ---------------------------------

 Name    "Disp"

 Spatial_grids   IDM=6

  "Base"  

 "West"  

 "East"

 "Top_surface"

 "North"

 "South"

 Nodal_variables IDM=3

  "Disp_x"

  "Disp_y"

  "Disp_z"        

 Start_time        0.0

 End_time          0.5

 Increment_time   0.25

 

 END DATA

 

1Name "Disp" is provided for the output spatial grid. The generated spatial grid file will therefore be named "Submod_001_Step1_Disp.spat" (note that it will be named after the large scale model datafile).

2The included spatial grids for the sub-model boundaries are referenced for extracting displacements at such locations.

3Displacements in directions X, Y and Z are output.

4The displacements will be output at times 0.0, 0.25 and 0.5 Ma as defined by Start_time, End_time and Increment_time.

5As in every other datafile the END DATA command is compulsory.

 

 

 

 

 

 

 

Generated Spatial Grid

The generated file for the project named  "Submod_001_Step1_Disp.spat" is in directory: Submod_001\Step3\results.  

 

Here only the data generated for the "Base" boundary is discussed as an example. The same applies to all extracted boundaries.

Data File

 

 

* Spatial_grid                     NUM=1

! ----------------------------------------

 Name                     "Base"

 Type                     "Nodal"

 Nodal_variables                  IDM=3

    "Disp_x"

    "Disp_y"

    "Disp_z"

 Node_numbers                     IDM=504

   1    2    3    4   13   14   15   16   17   18

  19   20   21   22   23   24   25   26   27   28

   .

   .

   .

    679  680  681  682

 Boundary_map_flag                   0

 Time_variation_assignment        IDM=3

   2    3    4

 

 

* Spatial_variation_values         NUM=2

! ----------------------------------------

 Grid_name                "Base"

 Time                    0.00000    

 Grid_number                   1

 Values                           IDM=1512

   0.00000    0.00000    0.00000    0.00000    0.00000    

   0.00000    0.00000    0.00000    0.00000    0.00000    

   .

   .

   .

   0.00000    0.00000

 

 

* Spatial_variation_values         NUM=3

! ----------------------------------------

 Grid_name                "Base"

 Time                   0.250000    

 Grid_number                   1

 Values                           IDM=1512

   1.54248    0.714830   0.718616    1.54582    1.57628    

   1.60782    1.62474    1.63987     1.63671    1.63079

   .

   .

   .  

   0.00000    0.00000  

 

 

* Spatial_variation_values         NUM=4

! ----------------------------------------

 Grid_name                "Base"

 Time                   0.500000    

 Grid_number                   1

 Values                           IDM=1512

   1912.91    389.665    389.654    1912.71    1839.40    

   1765.85    1691.78    1617.56    1542.86    1468.11  

   .

   .

   .  

   0.00000    0.00000

 

1The Spatial grid is named "Base" (each spatial grid is named after its respective boundary).

2The type is "Nodal" (spatial grid formed by nodes).

3The grid contain nodal data for displacement in X, Y and Z directions.

4The grid is formed by 504 nodes and their respective numbers are provided.

5Boundary_map_flag is set to 0 (do not assign values to points which are outside of the grid domain).

6Spatial variation values 2, 3 and 4 for displacements have been assigned (which contain data at times 0.0, 0.25 and 0.5 Ma respectively) via Time_spatial_variation_assignment.

 

 

 

 

 

1The spatial_variation_values 2 contain displacements in X, Y, and Z directions at time 0.0 (in the order specified in Nodal_variables in the Spatial_grid).

2A total of 1512 values are provided (504 for each displacement component)

 

 

 

 

 

 

1The spatial_variation_values 3 contain displacements in X, Y, and Z directions at time 0.25 (in the order specified in Nodal_variables in the Spatial_grid).

2A total of 1512 values are provided (504 for each displacement component)

 

 

 

 

 

 

 

 

 

3The spatial_variation_values 4 contain displacements in X, Y, and Z directions at time 0.5 (in the order specified in Nodal_variables in the Spatial_grid).

4A total of 1512 values are provided (504 for each displacement component)