Often the model domain is too complex to create a single grid that accurately represents the area. Therefore, the user may have to create several grids and connect them using the Connect Merge Two Grids tool.
To connect merge two grids, the user must have the initial grid open. The user should then create a new layer for a new set of splines. These splines should extend from a location adjacent to the first grid and outline the new domain. Draw the farthest spline first, followed by the connection to the first grid and then the sides. When drawing the spline parallel to the first grid, ensure it is close to the edge. The user may then generate the grid making sure the number of cells in the I or J-axis of the new grid matches the number of cells connecting it to the first grid. Select the Connect Two Grids tool and click two nodes on the grid line of the second grid where it is adjacent to the first grid. An example of this is shown in, Figure 1, Figure 2 and Figure 3.To insert a grid cell next to an existing cell, select two grid nodes of the existing cell (RMC on a
Suppose there are two grids (red one and blue one) as shown in Figure 1, now we want to merge them together. These two grids meet the requirement for merging as described above. RMC on either grid01 or grid02 in the Layer Control panel.
Set the cursor in selection mode, then RMC on the first node, hold the Shift key then LMC on the second node , the segment will be highlighted) then (note that the two nodes must be on the same grid line where two grids contacting). Once the segment is highlighted. Now we can select one of the following ways to merge them.
(1) Click the Merge Two Grids button from the main toolbar or,
(2) Go to the Grid menu then select Merge Two Grids option or,
(3) RMC to display options,
select Line Mirror option as shown in Figure 1. As a result, a cell will be added that shares a grid line with the existing cell as shown in Figure 2select Merge Two Grids option.
Figure 2 shows options to merge two grids.
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Figure 1 Define where to insert a cellTwo grids contacted.
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Figure 2 A cell is added to the grid
Figure 2 Options to merge two grids.
After merging two grids, a new grid layer (the result grid layer) is added to the Layer Control panel as shown in Figure 3.
A new capability in Grid+ compare to the CVLGrid in merging two grids is, in case there is a shared grid block of the two grids we still merge them as shown in Figure 4. In this case, instead of defining a contacted gridline, we will define a grid block and then select Merge Two Grids option.
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Figure 3 Define where to insert multiple cellsA new grid is generated from merging two grids.
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Figure 4 Multiple cells are added to the gridMerge two grids by a grid block.