Research Article
Numerical Simulation and Experiment on Impulse Noise in a Small Caliber Rifle with Muzzle Brake
Table 2
Comparison between the calculated and experimental results of SPLpeak.
| | | SPLpeak (dB) | Difference (%) | | Measured | Calculated |
| | Point θ = 90° | | P1 | 152.38 | 154.69 | −1.5 | | P2 | 151.21 | 151.16 | 0.0 | | P3 | 150.44 | 148.65 | 1.2 | | P4 | 150.35 | 146.67 | 2.4 |
| | Point θ = 45° | | P5 | 156.08 | 151.26 | 3.1 | | P6 | 153.9 | 147.22 | 4.3 | | P7 | 152.54 | 145.42 | 4.7 | | P8 | 150.21 | 142.35 | 5.2 |
| | Point θ = 0° | | P9 | 161.63 | 153.59 | 5.0 | | P10 | 159.85 | 149.24 | 6.6 | | P11 | 157.38 | 146.4 | 7.0 | | P12 | 156.21 | 144.26 | 7.6 |
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