Analysis of drag reduction characteristics of a high-speed monohull ship interceptor in shallow water

Table 1. Principal dimensions of DTMB 5415 model (bare)
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Table 1. Principal dimensions of DTMB 5415 model (bare)
参数实船模型
垂线间长L_pp/m 142.000 5.720
船宽B/m 18.900 0.760
吃水T/m 6.200 0.248
排水量△/t 8 636.000 0.549
湿表面积S_w /m² 2 949.500 4.786

Table 2. Grid division scheme
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Table 2. Grid division scheme
网格基础尺寸/m 网格数
低密度 0.169 70 117×10⁴
中密度 0.120 00 277×10⁴
高密度 0.084 85 669×10⁴

Table 3. Relative errors between numerical results of ship model resistance under different grid densities and experimental results
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Table 3. Relative errors between numerical results of ship model resistance under different grid densities and experimental results
试验值 C_tm (低密度) 相对误差/% C_tm (中密度) 相对误差/% C_tm (高密度) 相对误差/%
6.67×10⁻³ 6.418×10⁻³ 3.93 6.512×10⁻³ 2.42 6.599×10⁻³ 1.07

Table 4. Verification of total resistance coefficient \begin{document}${C_{{\text{tm}}}}$\end{document}

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Table 4. Verification of total resistance coefficient \begin{document}${C_{{\text{tm}}}}$\end{document}

参数	数值
$ {\mathit{P}}_{\rm{G}} $	237.624 1×10−3
$ {\mathit{\delta }}_{\rm{G}}^{\rm{*}} $	−0.087 2×10−3
$ {\mathit{C}}_{\rm{G}} $	85.840 3×10−3
$ {\mathit{U}}_{\rm{G}} $	2.871 5×10−3
$ {\mathit{U}}_{\rm{G}}{_{\rm{C}}} $	0.928 1×10−3
$ {\mathit{S}}_{\rm{C}} $	6.686 6×10−3

Table 5. Validation total resistance coefficient \begin{document}${C_{{\text{tm}}}}$\end{document}
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Table 5. Validation total resistance coefficient \begin{document}${C_{{\text{tm}}}}$\end{document}
参数数值
D 6.672×10−3
E/D 1.10%
$ {{U}}_{\rm{V}} $/D 43.05%
$ {E}_{\rm{C}} $/D −0.21%
$ {U}_{{\rm{VC}}} $/D 13.94%

Table 6. Principal dimensions of 75 m high-speed monohull
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Table 6. Principal dimensions of 75 m high-speed monohull
参数实船模型
船长L/m 75.000 5.769
垂线间长L_pp /m 70.000 5.382
船宽B/m 11.800 0.908
吃水T/m 3.400 0.262
排水量△/t 1300.000 0.592
湿表面积S_w /m² 852.800 5.046

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Jiabin BU, Jiangtao QIN, Jian MA, Anyang QIN, Ziru LI. Analysis of drag reduction characteristics of a high-speed monohull ship interceptor in shallow water[J]. Chinese Journal of Ship Research, 2024, 19(4): 219

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Paper Information

Category: Ship Design and Performance

Received: Mar. 13, 2023

Accepted: --

Published Online: Mar. 14, 2025

The Author Email:

DOI:10.19693/j.issn.1673-3185.03296

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Principal dimensions of DTMB 5415 model (bare)

Table 1. Principal dimensions of DTMB 5415 model (bare)

Table 2. Grid division scheme

Table 2. Grid division scheme

Table 3. Relative errors between numerical results of ship model resistance under different grid densities and experimental results

Table 3. Relative errors between numerical results of ship model resistance under different grid densities and experimental results

Table 4. Verification of total resistance coefficient \begin{document}${C_{{\text{tm}}}}$\end{document}

Table 4. Verification of total resistance coefficient \begin{document}${C_{{\text{tm}}}}$\end{document}

Table 5. Validation total resistance coefficient \begin{document}${C_{{\text{tm}}}}$\end{document}

Table 5. Validation total resistance coefficient \begin{document}${C_{{\text{tm}}}}$\end{document}

Table 6. Principal dimensions of 75 m high-speed monohull

Table 6. Principal dimensions of 75 m high-speed monohull