Grid Project Title: Hanford SK Tank 2000

Purpose of Project:

Create 2D grid representing edges of SK Tank and surrounding units. Coarse version should be around 2000 points. Image below is a close-up of tank (gray), backfill (green) and Hanford Fine Sand (brown).

Grid Team Member: Terry Cherry
Grid Version: 1
Data Source: Grid Description provided by Peter Lichtner
Delivered To: Peter Lichtner
Date Completed: October 18 2000

Design Criteria:

Corners of tank are at (0, 53) lower left, (11.43, 53) lower right, (11.43, 64.5) right corner, (7.43, 66.5) top corner, (66.5, 0) top left corner.
Unit tops are at 4(Saturated), 23(Upper Ringold), 30(Plio-Pleistocene), 53(Hanford Fine Sand), and back fill to 68 meters.
Left grid edge is at 0. and right grid edge is at 17.1965
Refine area around tank boundary.
Write fehm files with and without the tank in the material lists.
Keep total number of nodes near 2000.

Summary of Project:

The point distribution was created with ray-shooting as this best captured the slope of the tank. Rivera refinement was used at the tank boundaries and massage was used to remove fanning along the sloped edge. The starting grid has a point distribution with .5 meter edges so points were reduced by using massage to derefine the grid. This results in 1 to 2 meter edges in the bottom units, .5 to 1 meter edges in the unit below the tank. Back fill and tank have edges from about .25 to .5 meters.

Grid Summary:

Dimension: 2 Dimensions, xy
Grid Element Type: triangle
Number of Nodes: 3437 with the tank, 2323 without the tank
Number of Elements: 6644 with the tank, 4307 without the tank
Number of Materials: 6 with the tank, 2-6 without the tank

With Tank:
Total possible materials =      6
Material tank         1 has      1193 nodes. #nodes/nnodes is   0.347105026245
Material back fill    2 has       827 nodes. #nodes/nnodes is   0.240616813302
Material fine sand    3 has      1137 nodes. #nodes/nnodes is   0.330811768770
Material plio-pleis   4 has        77 nodes. #nodes/nnodes is   0.224032588303E-01
Material up ringold   5 has       162 nodes. #nodes/nnodes is   0.471341274679E-01
Material saturated    6 has        41 nodes. #nodes/nnodes is   0.119290081784E-01

Without Tank:
Total possible materials =      5
Material           2 has       890 nodes. #nodes/nnodes is   0.383125275373
Material           3 has      1153 nodes. #nodes/nnodes is   0.496340930462
Material           4 has        77 nodes. #nodes/nnodes is   0.331467911601E-01
Material           5 has       162 nodes. #nodes/nnodes is   0.697374120355E-01
Material           6 has        41 nodes. #nodes/nnodes is   0.176495909691E-01

Grid Software Used: LaGrit

Grid Method (Set-up Link to Grid Method file)

Project Archive Location:

/scratch/fourier1/tam/hanford_sktank

fehm input files with tank:
-rwxr-xr-x   1 tam        463333 Oct 18 14:38 hsk_tank.fehmn*
-rwxr-xr-x   1 tam         37927 Oct 18 14:38 hsk_tank_material.zone*
-rwxr-xr-x   1 tam          1707 Oct 18 14:38 hsk_tank_interface.zone*
-rwxr-xr-x   1 tam         14999 Oct 18 14:38 hsk_tank_multi_mat.zone*
-rwxr-xr-x   1 tam          1478 Oct 18 14:38 hsk_tank_outside.zone*
-rwxr-xr-x   1 tam         14848 Oct 18 14:38 hsk_tank_outside.area*
-rwxr-xr-x   1 tam       1132845 Oct 18 14:38 hsk_tank.stor*

Number of Nodes             =       3437
Max. Connection to a Node   =         10
Number of Area Coefficients =      23597
Minimum Voronoi area        =   1.8511028E-02
Maximum Voronoi area        =   2.9949413E+00
Minimum Voronoi edge length =   0.0000000E+00
Maximum Voronoi edge length =   2.9381930E+00
Total   Voronoi area        =   1.1693620E+03
Total   Triangle area       =   1.1693620E+03

fehm input files without the tank:
-rwxr-xr-x   1 tam        307118 Oct 18 14:40 hsk_rmtank.fehmn
-rwxr-xr-x   1 tam         25654 Oct 18 14:40 hsk_rmtank_material.zone
-rwxr-xr-x   1 tam           784 Oct 18 14:40 hsk_rmtank_interface.zone
-rwxr-xr-x   1 tam          4678 Oct 18 14:40 hsk_rmtank_multi_mat.zone
-rwxr-xr-x   1 tam          2040 Oct 18 14:40 hsk_rmtank_outside.zone
-rwxr-xr-x   1 tam         22024 Oct 18 14:40 hsk_rmtank_outside.area
-rwxr-xr-x   1 tam        750804 Oct 18 14:40 hsk_rmtank.stor

Number of Nodes             =       2323
Max. Connection to a Node   =         10
Number of Area Coefficients =      15581
Minimum Voronoi area        =   1.4511688E-02
Maximum Voronoi area        =   2.9949413E+00
Minimum Voronoi edge length =   0.0000000E+00
Maximum Voronoi edge length =   2.9381930E+00
Total   Voronoi area        =   1.0190570E+03
Total   Triangle area       =   1.0190570E+03

List of Tank Boundary Points:
-rwxr-xr-x 1 tam 7329 Nov 2 08:49 bndry_tank.pts
-rwxr-xr-x 1 tam 6845 Nov 2 08:50 bndry_rmtank.pts

View files:
tri0.inp         starting triangulated grid
ref_recon1.inp   Final Delaunay grid with double-defined nodes
final.gmv        Final grid with tank, single-defined nodes
final_rmtank.gmv Final grid without tank, single-defined nodes
fehm.gmv         Final grid with fehm attributes
fehm_rmtank.gmv Final grid without tank and with fehm attributes

LaGriT output files:
-rwxr-xr-x   1 tam         10058 Oct 18 14:40 fehm.out
-rwxr-xr-x   1 tam         10548 Oct 18 14:41 fehm2.out
-rwxr-xr-x   1 tam         88103 Nov 1 10:35 refine.out

`Images:`

Below are shown the notes for project description on left, final grid geometry on the right.

Images:

More Images and Grid Method

`Images:`