Table 2 Mesh sensitivity analysis.

From: Study on the aerodynamic performance and noise of windshield area in high-speed trains at a frequency of 38 hz

No.

First layer thickness/mm

Prismatic layer

Ratio

Total number of grids

Amplitude of sound pressure level of P1/dB

1

0.01

8

1.2

3.6 × 107

137.5

2

0.01

10

1.2

4.0 × 107

139.2

3

0.005

16

1.1

5.1 × 107

139.8

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