Chinese Journal of Ship Research, Volume. 19, Issue 4, 241(2024)
Lines optimization of 210 000 DWT bulk carrier based on resistance and wake non-uniformity
Figures & Tables(15)
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Table 1. Principal dimensions and parameters of initial hull form
View tableView in ArticleTable 1. Principal dimensions and parameters of initial hull form
参数 数值 垂线间长Lpp /m 295.15 型宽B/m 50 设计吃水Td/m 16.1 方形系数Cb 0.8420 设计航速Vs /kn 14.5
Table 2. Total resistance coefficient of initial hull form
View tableView in ArticleTable 2. Total resistance coefficient of initial hull form
参数 数值 试验值Ctm 3.737×10−3 粗网格模拟值Ctm 3.789×10−3 细网格模拟值Ctm 3.763×10−3 粗网格计算误差/% 1.40 细网格计算误差/% 0.70
Table 3. Comparison of main parameters of hull form
View tableView in ArticleTable 3. Comparison of main parameters of hull form
参数 初始方案M0 优化方案M1 变化量 垂线间长Lpp/m 295.15 295.15 0 型宽B/m 50 50 0 设计吃水Td/m 16.1 16.1 0 方形系数Cb 0.8420 0.8402 −0.21%
Table 4. Comparison of CFD calculation results of resistance
View tableView in ArticleTable 4. Comparison of CFD calculation results of resistance
参数 初始线型M0 优化线型M1 实船航速Vs/kn 14.5 14.5 船模速度Vm/(m·s−1) 1.141 1.141 船模总阻力Rm/N 28.53 28.09 实船总阻力Rs/kN 1101 1074 有效功率PE/kW 8212 8010 Rm变化量 − −1.55% Rs和PE变化量 − −2.46%
Table 5. Comparison of calculation results of WOF
View tableView in ArticleTable 5. Comparison of calculation results of WOF
r 初始线型M0 优化线型M1 WOF 变化量/% A B WOF A B WOF 0.6R 0.333 0.189 0.696 0.363 0.176 0.637 −8.48% 0.7R 0.264 0.177 0.285 0.175 0.8R 0.221 0.165 0.235 0.167 0.9R 0.202 0.166 0.208 0.154 1.0R 0.185 0.141 0.193 0.146
Table 6. Comparison of ship model test results
View tableView in ArticleTable 6. Comparison of ship model test results
方案 初始线型M0 优化线型M1 航速Vs/kn 14.5 14.5 有效功率PE/kW 8207 8004 推进效率ηD 0.747 0.755 螺旋桨收到功率PDT/kW 10987 10604 PE变化量 − −2.46% ηD变化量 − 1.05% PDT变化量 − −3.49%
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Baoguo CHENG, Jinfeng HAO, Zhaoxin QIANG. Lines optimization of 210 000 DWT bulk carrier based on resistance and wake non-uniformity[J]. Chinese Journal of Ship Research, 2024, 19(4): 241
Paper Information
Category: Ship Design and Performance
Received: Jan. 3, 2023
Accepted: --
Published Online: Mar. 14, 2025
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