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Table 2 Mesh independence

From: Step-by-Step Numerical Prediction of Aerodynamic Noise Generated by High Speed Trains

Level

Total cells (million)

Cd

Difference (%)

SPL (dBA)

Difference (dBA)

Coarse

37.85

0.297

–

93.2

–

Medium

48.21

0.303

2.02

93.8

0.6

Fine

56.23

0.300

− 0.99

93.6

− 0.2