The Refine grid option increases Coarsen Grid option is the opposite way to the Refine Grid option in that it decreases the resolution of the grid. It operates independently by multiplying dividing the existing number of cells in the current grid with (IC, JC) independently. There are two grid refinement types:Refine in I, J directions. There are three types of coarsening grid, global, by segment, and by block as described below:
Coarsen grid globally
- LMC on the grid layer in the Layer Control to select the grid to coarsen
- Select Coarsen Grid option from the Grid menu, or click the Coarsen Grid button from the main toolbar (1153859785).
- The Grid Block Coarsening form will be displayed, as shown in 1153859785. Enter the Coarsening Factor then click the OK button. The default value for factors is 2. 1153859785 shows an example of grid refinement.
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Figure 1. Coarsen grid.
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Figure 2. Grid after Coarsening.
Coarsen grid with a selected grid segment
- LMC on the grid layer in the Layer Control to select the grid the user want to refinecoarsen
- Select the Select object button from the main toolbar
- LMC on a grid node then hold Shift key, . LMC on the second node on same grid segment in I or J direction, and the segment will be highlighted as shown in 1154547744 1153859785.
- From Grid menu, select Refine Coarsen Grid option (or select Refine the Coarsen Grid button from the main toolbar), the Grid Block RefinementCoarsening form will be popup displayed as shown in 1154547744. The user needs to enter the Refinement 1153859785. Enter the Coarsening Factor then click the OK button. 1154547744 show examples for grid refinement with 1153859785 shows an example of grid coarsening for a selected grid segment.
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Figure 1 3. Select a grid segment to highlight.
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Figure 2 4. Grid Block Refinement Coarsening form.
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Figure 3 5. An example of coarsening grid refinement with a selected grid segment.
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Coarsen grid with a selected grid block
- LMC on the grid layer in the Layer Control to select grid the user want to refinecoarsen
- Select the Select object button from the main toolbar
- LMC on a grid node then hold the Shift key, . LMC on the a second node , this node which is not on the same grid segment in I or J direction, the . The grid block will be highlighted as shown in 1154547744 1153859785.
- From Grid menu, select Refine Coarsen Grid option (or select Refine Coarsen Grid button from the main toolbar), the Grid Block RefinementCoarsening form will be popup displayed as shown in 1154547744 1153859785. The user needs to enter the Refinement Coarsening Factor then click the OK button. 1154547744 show 1153859785 shows examples for grid refinement coarsening with a selected grid block.
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Figure 4 6. Select a grid block to highlight.
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Figure 5 7. Grid Block Refinement Coarsening form.
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Figure 6 8. An example of coarsening grid refinement with a selected grid block.
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