**Grid Project Title:
Romanian 2D Structured Grid Version 3**

To create a two-dimensional
Structured grid that delineates a cross-section perpendicular

to the x-axis that
runs through the well FS2. The grid will be used as part of a modeling
study

to calculate flow
and reactive transport, using FEHM, to help evaluate the suitability

of storing low level
nuclear waste at the site. Unlike previous versions, this grid includes

stratigraphy.

Redline in picture above represents the 2D Model Domain.

Vertical Profile of Mesh. The Different colors represent the Loess
and Clay units in the Seven layer

conceptual model.

Grid Team Member(s):
Marc Witkowski

Grid Version: 3

Data Source: /scratch/stoshu2/Witk/Romanian/2001/Geology/Ver01/Romanian0001.tfm

Delivered To: Kay
Birdsell, Bruce Robinson, and George Zyvoloski

Date Completed: 10/24/2000

**Design Criteria:**

- Use stratigraphy from 3D Hydrostratigrahic model for material designations.
- Create 100 meter domain that delineates a cross-section perpendicular to the x-axis through well FS2.
- Create a structured grid with triangular elements that can be computed by FEHM.

A two dimensional grid
was created with a domain that delineated a cross-section perpendicular

to the x-axis through
the well FS2. Unlike the Romanian grid we received, this mesh extends
north

south and contains
the real world coordinate data rather than a relative coordinate system.

The grid incorporates
stratigraphy from a 3D Hydrostratigraphic model for material designations.
The

grid contains no negative
coefficients and is computable by FEHM.

**Grid Summary:**

Dimension: 2

Grid Element Type: Triangles

Number of Nodes: 3832

Number of Elements:
7388

Number of Materials:
6

Element Resolution
in X Dim: 2D YZ Plane

Element Resolution
in Y Dim: 1 Meter

Element Resolution
in Z Dim: 1 Meter

**Grid Software Used:**LaGrit

Grid Method: 2D Structured Mesh.

**Project Archive
Location:**

*/scratch/stoshu2/Witk/Romanian/2001/Grid_gen/Rom2001_2Dv3/*

**FEHM Files:**

rom2001_2Dv3.fehmn

rom2001_2Dv3.stor

rom2001_2Dv3_material.zone

rom2001_2Dv3_outside.area

rom2001_2Dv3_outside.zone

**Graphics files to look at:**

rom2001_2Dv3.gmv

rom2001_2Dv3.inp

**Grid Materials:**

Mat 1.......Clay 2 (Does not exist in model domain)

Mat 2.......Clay 1

Mat 3.......Loess B2

Mat 4.......Loess B1

Mat 5.......Loess B

Mat 6.......Loess A1

Mat 7.......Loess A