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Table 4 Computational errors on the finest grid and L2, L accuracy between the last two grids of different stencils on the second- and third-order unstructured finite volume solver

From: Extending the global-direction stencil with “face-area-weighted centroid” to unstructured finite volume discretization from integral form

Results

AR = 103

AR = 104

L2 accuracy

(103/104)

L accuracy

(103/104)

L2 errors

L errors

L2 errors

L errors

G-Stencil-Avg (Cell centroid)

5.976 × 10−5

3.624 × 10−4

1.683 × 10−4

8.659 × 10−4

2.098/2.158

1.781/1.718

G-Stencil Avg (F-a-w centroid)

5.974 × 10−5

3.623 × 10−4

1.679 × 10−4

8.657 × 10−4

2.104/2.164

1.783/1.719

G-Stencil-Ref (Cell centroid)

6.273 × 10−5

3.599 × 10−5

1.688 × 10−4

8.635 × 10−4

2.066/2.157

1.768/1.719

G-Stencil-Ref (F-a-w centroid)

3.31 × 10−6

2.67 × 10−5

9.833 × 10−5

4.007 × 10−4

2.041/2.178

1.839/1.992