Analysis of motion characteristics of ultra-high-speed underwater vehicle with temperature effect

Table 1. Comparison of cavitation radius at the tail of the vehicle
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Table 1. Comparison of cavitation radius at the tail of the vehicle
是否考虑水的压缩性是否考虑温度航行体尾部空泡半径/mm 相对误差/%
实验值模拟值
否否 8.755 8.206 6.27
是否 8.755 8.081 7.69
是是 8.755 8.220 6.11

Table 2. Effective ranges corresponding to different initial speeds
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Table 2. Effective ranges corresponding to different initial speeds
初始速度/(m∙s⁻¹) 有效航程时间/s 有效航程/m 相对增加量/m 相对增加率/%
1 300 0.008 62 8.409
2 000 0.008 55 11.372 2.963 35.236
2 800 0.008 75 12.146 0.774 6.806
4 000 0.008 55 13.554 1.408 11.592

Table 3. Effective ranges at different initial velocities with or without temperature effect

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Table 3. Effective ranges at different initial velocities with or without temperature effect

初始速度/(m∙s⁻¹)	有效航程/m		误差/%
初始速度/(m∙s⁻¹)	不考虑温度	考虑温度	误差/%
400	2.659 2	2.723 0	−2.34
800	5.174 1	5.248 2	−1.41
1 200	7.169 9	7.382 6	−2.88
1 300	7.709 0	7.916 9	−2.63
1 400	8.318 9	8.311 9	0.08
1 450	8.332 0	8.535 3	−2.38
1 475	6.321 7	7.415 7	−14.75
1 500	7.202 4	9.189 0	−21.62
1 600	6.286 4	9.511 5	−33.91

Table 4. Effective ranges at different environment temperatures
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Table 4. Effective ranges at different environment temperatures
环境温度/K 有效航行时间/s 有效航程/m
300 0.008 55 11.372
310 0.008 50 10.541
320 0.007 92 9.962
340 0.006 52 8.596

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Shaojie LIU, Huiping FU, Jie LI. Analysis of motion characteristics of ultra-high-speed underwater vehicle with temperature effect[J]. Chinese Journal of Ship Research, 2023, 18(6): 39

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