MULTY
Recognised by the OPM Flow parserGRIDEDITSCHEDULE
Variant 1 — GRID section
Part of the MULT_XYZ keyword family in the OPM Flow parser.
MULTY multiples the transmissibility between two cell faces in the +Y direction for all the cells in the model via an array, that is the keyword sets the transmissibility multiplier of block (I, J, K) between the cells (I, J, K) and (I, J+1, K).
An alternative to defining the complete array is to use the BOX keyword to define an area of the grid and then use the MULTY keyword to set the multipliers just for the area defined by the BOX keyword (see the example).
The keyword can be used for all grid types, except for the Radial Grid geometry.
Notes:
The number of entries should correspond to the NX x NY x NZ parameters on the DIMENS keyword in the RUNSPEC section, unless the BOX keyword defines a sub area of the grid, in which case the total number of entries should correspond to the number of cells defined by the BOX statement.
The keyword is terminated by a “/”.
See also the MULTY-, MULTX, MULTX-, MULTZ and MULTZ- keywords for scaling transmissible between grid cells.
Parameters
| No. | Name | Description | Default |
|---|---|---|---|
| 1 | MULTY+ | MULTY+ is an array of real positive numbers assigning the transmissibility multipliers in the +Y direction to each cell face in the model. Repeat counts may be used, for example 20*100.0. | 1.0 |
Example
--
-- DEFINE INPUT BOX FOR EDITING INPUT ARRAYS
--
-- ---------- BOX ---------
-- I1 I2 J1 J2 K1 K2
BOX
10 10 1 6 1 3 / DEFINE BOX AREA
--
-- SET MULTY+ TRANSMISSIBILITY MULTIPLIERS
--
MULTY
18*0.300 /
--
-- DEFINE END OF INPUT BOX EDITING OF INPUT ARRAYS
--
ENDBOX
The above example defines a 0.3 scaling multiplier for the 18 cells defined by the preceding BOX statement. The ENDBOX keyword resets the input box to the full grid.Manual source: parts/chapters/subsections/6.3/MULTY.fodt
Variant 2 — EDIT section
MULTY multiples the transmissibility between two cell faces in the +Y direction for all the cells in the model via an array, that is the keyword sets the transmissibility multiplier of block (I, J, K) between the cells (I, J, K) and (I, J+1, K).
See MULTY - Multiply Cell Transmissibility in the +Y Directionin the GRID section for a full description.
Manual source: parts/chapters/subsections/7.3/MULTY.fodt
Variant 3 — SCHEDULE section
MULTY multiples the transmissibility between two cell faces in the +Y direction for all the cells in the model via an array, that is the keyword sets the transmissibility multiplier of block (I, J, K) between the cells (I, J, K) and (I, J+1, K).
See MULTY - Multiply Cell Transmissibility in the +Y Directionin the GRID section for a full description.
Manual source: parts/chapters/subsections/12.3/MULTY.fodt