Numerical Study on Flow around Four Square-Arranged Cylinders at Low Reynolds Numbers

Table 4

Grid independence test at .

Number of nodes on cylinder surface		Number of cells					St
Grid 1	100	11328	0.001	1.330	0.030	0.466	0.193
Grid 2	140^①	16048	0.001	1.337	0.031	0.474	0.191
Grid 3	180	20768	0.001	1.340	0.032	0.485	0.191
Grid 4	220	25488	0.001	1.340	0.032	0.486	0.192

^①The final chosen calculation scheme.