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Table 3 Results obtained by URANS simulation on 2D mesh and 3D simulations on Mesh-B

From: RANS and hybrid LES/RANS simulations of flow over a square cylinder

Model

Mesh

St

-Cpb

CD

CL

CD

URANS

2D Mesh

0.137

1.35

2.07

1.37

0.06

Gieseking

3D Mesh-B

0.127

1.28

2.02

1.24

0.180

original IDDES

3D Mesh-B

0.122

1.4

2.13

1.27

0.272

modified IDDES

3D Mesh-B

0.128

1.28

2.02

1.18

0.189

Experiments

 

0.122~0.133

1.3~1.6

2.02~2.22

1.18~1.32

0.207~ 0.245