Test Mesh: Test 3

Grid Team Member: Lucia Short
Test Mesh: Test 3: column with flat top
Data Source: 3 points
Delivered To: Scott Painter
Date Completed: Feburary 10, 2013
T3 Mesh:   396 Nodes and  131 Cells
T2 Mesh:   396 Nodes and  131 Cells
T1 Mesh:   291 Nodes and  96 Cells

Purpose of Project

These meshes were developed in support of the Arctic Next Generation Ecosystem Experiment (NGEE-Arctic) Project and LANL Laboratory Directed project LDRD20120068DR. These two projects share a need for high quality computational meshes for use in fine-scale modeling of thermal hydrology in ice-wedge polygon landscapes.

This mesh is based on the mesh from Test 2 with different coordinates for the points:

1 0.0 0.0 5.0
2 0.0 1.0 5.0
3 1.0 0.0 5.0

Test 1 uses the following layers:

  -----------------
  1 moss           .02 (2 x .01)
  2 upper organic  .18 (9 x .02)
  3 upper mineral  .18 (9 x .02)
  4 lower organic  .12 (6 x .02)
  5 lower mineral  .5 (20 x .025)
  6 deep mineral   ~49.00 (variable)
  -----------------

Full Stacked Mesh
6 material layers with bottom at -45

LaGriT Finite Element Mesh

Full Stacked Mesh with Ice Wedge
Cut to show internal materials

LaGriT Finite Element Mesh

Test Mesh Input Parameters

General Description

Following layer definitions :

Outside Boundaries (Exodus side sets)

The side sets defined are top, bottom, and sides (corresponding to the 4 sectors within 45 degrees of each direction).



Output Mesh Description

Output is a stacked prism mesh written as two Exodus files; a single material mesh and a multi-material Mesh with 7 materials (6 layers plus the Ice Wedge). Files are written in formats; Exodus II (.exo), AVS (.inp), and GMV (.gmv)
Final Mesh files: mesh_fsets.exo, mesh_fsets.gmv, mesh_fsets.inp
Final Mesh with single material: mesh_fsets_1mat.exo, mesh_fsets_1mat.gmv, mesh_fsets_1mat.inp

Mesh Element Type:             prism
Mesh Software Used: LaGriT, ExodusII

Total nodes:       396       
Total elements:    131     
Total Volume:      0.2500000E+02      

from file write_exo.out.txt:
Mesh Extents (Meters):
        MIN              MAX             DIFFERENCE    
 x   0.000000000E+00  1.000000000E+00 1.000000000E+00
y 0.000000000E+00 1.000000000E+00 1.000000000E+00
z -4.500000000E+01 5.000000000E+00 5.000000000E+01 from file write_exo.out.txt: SUMMARY VOLUME/AREA METERS of ELEMENT COLORS (BLOCKS) Color Num. Elements Volume Fractional Volume 1 2 0.9999990E-02 0.000400000
2 9 0.8999991E-01 0.003599997
3 9 0.9000015E-01 0.003600006
4 6 0.5999994E-01 0.002399998
5 20 0.2500000E+00 0.010000000
6 85 0.2450000E+02 0.980000000 from file stack_full_poly.out.txt: SUMMARY ELEVATIONS at LAYER TOPS (METERS) MIN MAX DIFF MAX below (thickness) 1 5.000000000 5.000000000 .02 2 4.980000000 4.980000000 .18 3 4.800000000 4.800000000 .18 4 4.620000000 4.620000000 .12 5 4.500000000 4.500000000 .50 6 4.000000000 4.000000000 49.00 (Bottom is flat at -45.0)
Mesh Layer Definitions (meters)

ID Layer Name Layer
Thick
Layer
Vertical Cells
Layer
Volume
1 moss(top) 0.02 2 x .01 0.9999990E-02
2 upper organic 0.18 9 x .02 0.8999991E-01
3 upper mineral 0.18 9 x .02 0.9000015E-01
4 lower organic 0.12 6 x .02 0.5999994E-01
5 lower mineral 0.50 20 x .025 0.2500000E+00
6 deep mineral 49.00 50 x 0.1
10 x 0.4
10 x 1
15 x 2 
0.2450000E+02
LaGriT Finite Element Mesh

Boundary Side Sets

Top and Bottom:
neon-pink  top     (num_side_ss2) has  1 faces
neon-green bottom  (num_side_ss1) has  1 faces


LaGriT Finite Element 
Mesh


Project Archive Location

Full Set of files:

/scratch/sft2/lucia/grid_gen/arctic/column_3 

LaGriT faceset files with elem number and face (*.faceset):
-rw-r--r-- 1 lucia sftus  112 Feb 10 16:49 fs_1_bot.faceset
-rw-r--r-- 1 lucia sftus 110 Feb 10 16:49 fs_2_top.faceset
-rw-r--r-- 1 lucia sftus 1413 Feb 10 16:49 fs_5_lef.faceset
-rw-r--r-- 1 lucia sftus 1413 Feb 10 16:49 fs_6_fro.faceset Mesh and faceset files for 6 Materials (mesh_fsets.*): -rw-r--r-- 1 lucia sftus 19676 Feb 10 16:49 mesh_fsets.exo
-rw-r--r-- 1 lucia sftus 42908 Feb 10 16:49 mesh_fsets.gmv
-rw-r--r-- 1 lucia sftus 49757 Feb 10 16:49 mesh_fsets.inp Mesh and faceset files for 1 Material (mesh_fsets_1mat.*): -rw-r--r-- 1 lucia sftus 18032 Feb 10 16:49 mesh_fsets_1mat.exo -rw-r--r-- 1 lucia sftus 42388 Feb 10 16:49 mesh_fsets_1mat.gmv -rw-r--r-- 1 lucia sftus 49361 Feb 10 16:49 mesh_fsets_1mat.inp LaGriT output files contain information reported during the run (*.out.txt): -rw-r--r-- 1 lucia sftus 4963 Feb 10 16:49 get_boundary_pts.out.txt
-rw-r--r-- 1 lucia sftus 4313 Feb 10 16:49 get_poly_surf.out.txt
-rw-r--r-- 1 lucia sftus 7243 Feb 10 16:49 interpolate.out.txt
-rw-r--r-- 1 lucia sftus 7573 Feb 10 16:49 merge_polys.out.txt
-rw-r--r-- 1 lucia sftus 5546 Feb 10 16:49 process_lidar.out.txt
-rw-r--r-- 1 lucia sftus 3748 Feb 10 16:49 set_zeroz.out.txt
-rw-r--r-- 1 lucia sftus 358858 Feb 10 16:49 stack_full_poly.out.txt
-rw-r--r-- 1 lucia sftus 75976 Feb 10 16:49 write_exo.out.txt Mesh images: /scratch/sft2/lucia/grid_gen/arctic/column_3/images

Input Data files:

 /scratch/sft2/lucia/grid_gen/arctic/column_3/input/

-rw-r--r-- 1 lucia sftus    54 Feb 10 15:31 lidar_site3.inp
-rw-r--r-- 1 lucia sftus 58 Feb 10 15:31 poly10001.avs

Main Work Directory for Polygon Meshing Method:

 /scratch/sft2/lucia/grid_gen/arctic/

 

Links to Images and Project Details


Gallery of All Project Images

Method Description Overview (from V01)

Input and Output Files Running LaGriT to create the Mesh

These are LaGriT input (.lgi) and output (outx3dgen) files used in creating this mesh. The output files provide good information about the data and mesh, including min and max values of mesh attributes.
The complete set of scripts and input files are in /scratch/sft2/lucia/grid_gen/arctic/column_3. The output files for various mesh versions are in /scratch/sft2/lucia/grid_gen/arctic/.

1: Create and stack layers into full mesh (stack_full_poly.lgi)     Input       Output

2: Create facesets and write final Exodus files (write_exo.lgi)     Input       Output

 




Grid Team Contacts

Carl Gable <gable -at- lanl -dot- gov> 505-665-3533
Terry Miller <tamiller -at- lanl -dot- gov> 505-667-8009
Lucia Short <lucia -at- lanl -dot- gov> 505-665-7957