Grid Project:   Pahute Mesa Meshing for U-20az

Purpose of Project

This work models the area at the BARNWELL test at U-20az.
Cavity size based on maximum announced yield of 150 kt is 62 m. The zone lists are based one 1 Rc (cavity radii), 2 Rc and 3 Rc from the working point at
UTM NAD27 m X=552392.4 m y=4120468.5 m, z= 1457.5 m
Chimney should be 1 Rc (62 m) in radii and extend from working point elevation to 1882 m elevation (176 m depth). We also define an alternative chimney zone of the same height but extending out 2 Rc (124 m).
Depth of device burial is 600.8 m, ground surface elevation is 2058.3

20x20x10 Hex Mesh cut away at U-20az

Earthvision PM model cut away at U-20az

Image Pages (html)

Tables (PDF)

Scoping Mesh for FEHM 20x20x10

This mesh is centered at U-20az from ground surface to 1300 elevation.

The mesh domain:
                  X              Y         Z
    Minimum     551692        553092      1300 
    Maximum    4119969       4120969      Ground
    Range        1400           1000      < 800

number of nodes =       256,311        
number of elements =  1,422,919 

     *** Summary Material Units ***
    Zone   Name      Nodes   Percent 
     76    AA         60       0.02
     74    TCVA       4524     1.77
     48    TMWTA      57526   22.44
     47    TMLVTA     31114   12.14
     44    WWA        3086     1.20
     39    UPCU       1041     0.41
     36    TCA        483      0.19
     35    PVTA       9298     3.63
     34    LPCU       286      0.11
     33    PLFA       22216    8.67
     29    CHZCM      84784   33.08
     28    CHLFA1     26342   10.28
     25    CHLFA4     15551    6.07
    Total nodes:      256311

FEHM Files for 20x20x10 Mesh

/scratch/nts/tam/pahute_mesa/mesh_U20AZ_uniform/fehm_20_20_10

FEHM Files:

    tet.fehmn - FEHM grid file
    tet_material.zone - node material zones 25 to 76 

    tet_outside.zone - outside boundary node lists for 6 directions
    top_tip_outside.zone - single top tip node (replaces multi top node zone)
    top_double_outside.zone - double top nodes (from tet_outside.zone)

    tet_ascii.stor - ascii voronoi volume and ccoefs for FEHM
    tet_bin_linux.stor - binary voronoi volume and ccoefs for FEHM


FEHM Fault Zone Files:

    zone 117 is East Greeley, zone 180 is West Greeley

    n are nodes on negative (west) side of fault elements 
    p are nodes on positive (east) side of fault elements 

    fault_n117.zone (East Greeley nodes facing U20)
    fault_n180.zone (West Greeley nodes facing away from U20)

    fault_p117.zone (East Greeley nodes facing away from U20)
    fault_p180.zone (West Greeley nodes facing U20)


FEHM Cavity Zone Files:

    cavity r1 within 62 m
    cavity r2 within 124 m
    cavity r3 within 186 m

    chimney r1 within  62 m (from cavity center to 1880 m elevation)
    chimney r2 within 124 m (from cavity center to 1880 m elevation)

    ==> zone_cavity_r1_material.zone <== zone 00201 244
    ==> zone_cavity_r2_material.zone <== zone 00202 1987
    ==> zone_cavity_r3_material.zone <== zone 00203 6665
    ==> zone_chimney_r1_material.zone <== zone 00205 1247
    ==> zone_chimney_r2_material.zone <== zone 00206 5203

Source HSU and Fault data

Fault surfaces and HSU definitions from Earthvision Model sent by
Tim Vogt
Supporting Navarro-Intera, LLC contracted to the
U.S. Department of Energy, NNSA Nevada Field Office
702-295-2057 office
702-994-2489 cell
Tim.vogt@nv.doe.gov

March 05, 2014 2:25 PM Download location
https://ugta.nv.doe.gov/sites/EarthVision/VisualizationLibrary/20140305_for_LANL.tar 

Local: 
     Interpolation from .seq file
     /scratch/nts/ev_models/HFM_PM_20140305/
     Final fault surfaces are created and written in 
     /scratch/nts/ev_models/HFM_PM_20140305/fault_polygons
     View files for analysis and images added to
     /scratch/nts/ev_models/HFM_PM_20140305/faces

Support and analysis of area fault and geology: 
Drellack, Sigmund 
National Security Technologies, LLC
Contractor to the United States Department of Energy
Mail Address
  Mail Stop NLV 082
  P.O. Box 98521
  Las Vegas, NV 89193-8521
Phone: 702-295-0170
FAX: 702-295-1313
E-mail: drellasl@nv.doe.gov

Grid Team Contacts