`HYFIN`

Recognised by the OPM Flow parserGRID

HYFIN defines the split ratio of grid blocks for the DYV keyword in the y-direction via a vector within a Local Grid Refinement (“LGR”) as opposed to defining the size for each cell for a Cartesian LGR Grid. The LGR keyword in the RUNSPEC section should be activated to indicate an LGR is being used, and the keyword HYFIN should be placed in between the CARFIN and ENDFIN keywords in the GRID section. The DYV keyword in the GRID section defines the grid size in terms of the length, that is feet for field units, this keyword defines the length as the ratio of the coarse cells.

This keyword is not supported by OPM Flow but would change the results if supported so the simulation will be stopped.

Notes:

The number of entries should correspond to the NY parameter on the CARFIN keyword in the GRID section.

The keyword is terminated by a “/”.

See also the CARFIN, ENDFIN, HXFIN, and HZFIN keywords in the GRID section to fully define a Cartesian LGR grid model.

Records: An array of values covering the grid

Parameters

No.	Name	Description	Field	Metric	Lab	Default
1	`HYFIN`	HYFIN is a vector of real numbers describing the ratio of cell size for the grid blocks in the y-direction in a Cartesian LGR grid. Repeat counts may be used, for example 2*2.0.	dimensionless	dimensionless	dimensionless	None

Example

--
-- CARFIN LGR GRID COMMANDS
--
-- LGR ----- HOST GRID ------ -- CARFIN GRID -- MAX HOST
-- NAME I1 I2 J1 J2 K1 K2 NX NY NZ WELLS NAME
CARFIN
LGR-OP01 24 25 86 87 1 50 3 5 50 1 GLOBAL /
--
-- DEFINE LGR GRID BLOCK IN THE Y-DIRECTION
NYFIN
3 2 /
--
-- DEFINE GRID BLOCK LGR RATIOS IN THE Y-DIRECTION
--
HYFIN
1.00 2.00 3.00 2.00 1.00 /
ENDFIN
The above example defines the size of the cells in the y-direction based on NY equals five on the CARFIN keyword in the GRID section.

Manual source: parts/chapters/subsections/6.3/HYFIN.fodt