Horizontal-Flow Barrier Package (HFB)
©1995, Richard B. Winston
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Last modified on Sunday, December 31, 1995 - 9:13:41 AM
Skip forward to Input instructions for the Horizontal-Flow Barrier Package.
The original instructions for the Horizontal-Flow Barrier Package are on pages 10 to 11 of Hsieh and Freckleton, (1993).
Introduction: The Horizontal-Flow Barrier Package is used to simulate the effects of thin vertical barriers to horizontal flow such as intrusions or faults. It does this by changing the conductance between pairs of adjacent grid cells. This allows you to avoid the use of small grid cells to model flow barriers.
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All input parameters should be right justified.
- Line 1
- Spaces 1-10, NHFB, Integer, Total number of horizontal flow barriers in the grid.
- Lines 2+, Use 1 copy of line 2 followed by NBRLAY copies of Lines 3+ for each layer.
- Spaces 1-10, NBRLAY, Integer, Total number of horizontal flow barriers in a layer.
- Lines 3+, Use 1 copy of line 2 followed by NBRLAY copies of Lines 3+ for each layer.
- Spaces 1-10, IROW1, Integer, Row number of cell on one side of the horizontal flow barrier
- Spaces 11-20, ICOL1, Integer, Column number of cell on one side of the horizontal flow barrier
- Spaces 21-30, IROW2, Integer, Row number of cell on the other side of the horizontal flow barrier
- Spaces 31-40, ICOL2, Integer, Column number of cell on the other side of the horizontal flow barrier
- Spaces 41-50, HYDCHR, Real Number, The hydraulic conductance of the horizontal flow barrier
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Total number of horizontal flow barriers in the grid.
Go back to Input instructions for the Horizontal-Flow Barrier Package.
Total number of horizontal flow barriers in a layer.
Use 1 copy of line 2 followed by NBRLAY copies of Lines 3+ for each layer.
Go back to Input instructions for the Horizontal-Flow Barrier Package.
IROW1 = Row number of cell on one side of the horizontal flow barrier. Each barrier separates two adjacent cells so either IROW1 = IROW2, or else ICOL1 = ICOL2.
Use 1 copy of line 2 followed by NBRLAY copies of Lines 3+ for each layer.
Go back to Input instructions for the Horizontal-Flow Barrier Package.
ICOL1 is the column number of cell on one side of the horizontal flow barrier. Each barrier separates two adjacent cells so either IROW1 = IROW2, or else ICOL1 = ICOL2.
Use 1 copy of line 2 followed by NBRLAY copies of Lines 3+ for each layer.
Go back to Input instructions for the Horizontal-Flow Barrier Package.
IROW2 is the row number of cell on the other side of the horizontal flow barrier. Each barrier separates two adjacent cells so either IROW1 = IROW2, or else ICOL1 = ICOL2.
Use 1 copy of line 2 followed by NBRLAY copies of Lines 3+ for each layer.
Go back to Input instructions for the Horizontal-Flow Barrier Package.
ICOL2 is the column number of cell on the other side of the horizontal flow barrier. Each barrier separates two adjacent cells so either IROW1 = IROW2, or else ICOL1 = ICOL2.
Use 1 copy of line 2 followed by NBRLAY copies of Lines 3+ for each layer.
Go back to Input instructions for the Horizontal-Flow Barrier Package.
HYDCHR is the hydraulic conductance of the horizontal flow barrier. If the layer type is 0 or 2, it is the barrier transmissivity divided by the thickness of the horizontal flow barrier. If the layer type is 1 or 3, it is the barrier hydraulic conductivity divided by the thickness of the horizontal flow barrier.
Use 1 copy of line 2 followed by NBRLAY copies of Lines 3+ for each layer.
Go back to Input instructions for the Horizontal-Flow Barrier Package.
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©1995, Richard B. Winston,
rwinsto@lsuvm.sncc.lsu.edu
Dept. of Geology and Geophysics
Louisiana State University
Baton Rouge, La 70803
U.S.A.
504-388-2337
Fax 504-388-2302
http://scribe.geol.lsu.edu/rbwinston.html
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