Research Article
Near-Field Measurements of Water-Entry Sound of Low-Speed Metal Balls in a Non-Anechoic Tank
Table 3
Water-entry sound energy corresponding to each ball size.
| | Ball size (m) | Kinetic energy (J) | Initial impact sound energy (J) | Initial impact energy conversion rate (%) | Pulsating-bubble sound energy (J) | Pulsating-bubble sound energy conversion rate (%) |
| | 0.006 | 0.1243 | 2.10 × 10−10 | 1.69 × 10−7 | 9.84 × 10−7 | 7.91 × 10−4 | | 0.008 | 0.2937 | 2.19 × 10−10 | 7.46 × 10−8 | 1.87 × 10−6 | 6.34 × 10−4 | | 0.010 | 0.5757 | 3.59 × 10−10 | 6.24 × 10−8 | 3.95 × 10−6 | 6.86 × 10−4 | | 0.012 | 0.9947 | 4.79 × 10−10 | 4.82 × 10−8 | 8.98 × 10−6 | 9.03 × 10−4 | | 0.014 | 1.5796 | 8.32 × 10−10 | 5.27 × 10−8 | 2.42 × 10−5 | 1.53 × 10−3 |
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