Chinese Journal of Ship Research, Volume. 20, Issue 2, 166(2025)
Comparison and hydrodynamic performance analysis of positioning bow type self-propelled cutter suction dredger aft hull lines
Figures & Tables(24)
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Table 1. Principle dimensions of Hull A
View tableView in ArticleTable 1. Principle dimensions of Hull A
参数 实船 船模 垂线间长LPP/m 140.0 5.600 水线长LWL/m 145.0 5.800 船宽B/m 36.0 1.440 型深D/m 10.2 0.408 设计吃水T/m 7.0 0.280 湿表面积S/m2 8 110.0 12.976 排水体积 $\nabla $ 31 743.0 2.032 设计航速VS/kn 12.0 设计航速对应的Fr 0.164 缩尺比λ 25.0
Table 2. Principle dimensions of the object ship
View tableView in ArticleTable 2. Principle dimensions of the object ship
参数 实船 船模 船型B1 船型B2 船型B1 船型B2 垂线间长LPP/m 142.1 5.684 水线长LWL/m 147.7 5.908 船宽B/m 36.0 1.440 型深D/m 10.2 0.408 设计吃水T/m 7.0 0.280 湿表面积S/m2 7 512.0 7 408.0 12.019 11.853 排水体积 $\nabla $ 29 494.0 29 541.0 1.888 1.891 设计航速VS/kn 12.0 设计航速对应的Fr 0.162 缩尺比λ 25.0
Table 3. Resistance test results of Hull A
View tableView in ArticleTable 3. Resistance test results of Hull A
实船航速 VS/kn Fr 船模航速 Vm/(m∙s−1) 船模总阻力系数Ctm 7.0 0.095 0.720 7.934×10−3 8.0 0.109 0.823 7.742×10−3 9.0 0.123 0.926 7.670×10−3 10.0 0.136 1.029 7.813×10−3 11.0 0.150 1.132 7.880×10−3 12.0 0.164 1.235 7.836×10−3 13.0 0.177 1.337 8.051×10−3
Table 4. Grids quantity of resistance uncertainty
View tableView in ArticleTable 4. Grids quantity of resistance uncertainty
网格 数量 Grid-1 284.4×104 Grid-2 201.1×104 Grid-3 142.2×104
Table 5. Total resistance coefficients with different grids
View tableView in ArticleTable 5. Total resistance coefficients with different grids
参数 数值 Grid-1总阻力系数Ctm1 8.086×10−3 Grid-2总阻力系数Ctm2 8.037×10−3 Grid-3总阻力系数Ctm3 7.959×10−3 试验值DT 7.836×10−3
Table 6. Verification results of CFD method for total resistance
View tableView in ArticleTable 6. Verification results of CFD method for total resistance
参数 数值 参数 数值 RG 0.631 UG 1.9%CtmC PG 1.329 $ \delta $ 1.0%CtmC CG 0.761 UGC 0.3%CtmC CtmC 8.004×10−3
Table 7. Validation results of the effectiveness of CFD method for total resistance
View tableView in ArticleTable 7. Validation results of the effectiveness of CFD method for total resistance
参数 数值 $ \left|E\right| $ 3.1%DT $ \left|{E}_{\mathrm{C}}\right| $ 2.1%DT UV 3.2%DT UVC 2.5%DT
Table 8. Comparision between CFD and EFD results of Hull A
View tableView in ArticleTable 8. Comparision between CFD and EFD results of Hull A
Fr 船模总阻力系数Ctm 误差/% 试验值 (EFD) 计算值 (CFD) 0.095 7.934×10−3 7.253×10−3 −8.6 0.109 7.742×10−3 7.147×10−3 −7.7 0.123 7.670×10−3 7.293×10−3 −4.9 0.136 7.813×10−3 7.466×10−3 −4.4 0.150 7.880×10−3 7.682×10−3 −2.5 0.164 7.836×10−3 8.037×10−3 2.6 0.177 8.051×10−3 8.267×10−3 2.7 平均误差/% −3.3
Table 9. Axial wake fraction
ω and WOF resultsView tableView in ArticleTable 9. Axial wake fraction
ω and WOF results参数 B1 B2 ω 0.189 0.331 WOF 0.621 0.698
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Xin YU, Jiantao YANG, Yanping HE, Liansong NI, Youjiang WANG, Yadong LIU. Comparison and hydrodynamic performance analysis of positioning bow type self-propelled cutter suction dredger aft hull lines[J]. Chinese Journal of Ship Research, 2025, 20(2): 166
Paper Information
Category: Ship Design and Performance
Received: Sep. 13, 2023
Accepted: --
Published Online: May. 15, 2025
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