Chinese Journal of Ship Research, Volume. 17, Issue 2, 63(2022)
CFD-based optimization for resistance and pitch of KCS ship with appendages in waves
Figures & Tables(30)
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Table 1. Main parameters of the KCS model
View tableView in ArticleTable 1. Main parameters of the KCS model
参数 数值 垂线间长Lpp /m 6.070 2 水线长Lwl /m 6.135 7 水线宽Bwl /m 0.849 8 船体湿表面积Sw /m2 6.617 7 方形系数CB 0.651 0
Table 2. Magnitude of heave and pitch in different cases
View tableView in ArticleTable 2. Magnitude of heave and pitch in different cases
工况 纵摇幅值Pitch/(°) 垂荡幅值Heave/m 波高Hs /m 波长λ/m Case 1 0.093 7 0.007 94 0.062 3.949 Case 2 0.588 0 0.017 2 0.078 5.164 Case 3 4.749 0 0.110 0.123 6.979 Case 4 6.237 0 0.130 0.149 8.321 Case 5 6.657 0 0.183 0.196 11.840
Table 3. Result comparison between CFD and EFD
View tableView in ArticleTable 3. Result comparison between CFD and EFD
参数 CFD EFD 计算误差/% 总阻力系数Ct 0.068 2 0.070 8 3.67 纵摇幅值Pitch/(°) 4.733 0 4.569 0 0.55 垂荡幅值Heave/m 0.112 0 0.111 0 1.00
Table 4. Comparison of hydrodynamic performance between ship Org and KCS ships with different appendages
View tableView in ArticleTable 4. Comparison of hydrodynamic performance between ship Org and KCS ships with different appendages
船编号 摩擦阻力Rf /N 剩余阻力Rr /N 总阻力Rt /N 纵摇幅值/(°) Org 38.254 51.614 89.868 4.540 A 38.328 45.202 83.530 4.384 B 38.148 48.808 86.956 4.269 C 38.370 42.100 80.470 4.075
Table 5. Variable range of appendages
Table 6. Resistance and pitch magnitude of each sample ship
View tableView in ArticleTable 6. Resistance and pitch magnitude of each sample ship
样本点 总阻力/N 纵摇幅值/(°) 1 40.100 4.035 2 40.976 4.060 …… …… …… 29 38.355 3.994 30 40.500 4.018
Table 7. The corresponding variables of three sample ships
View tableView in ArticleTable 7. The corresponding variables of three sample ships
船编号 α β Hull 1 1.319 0.966 Hull 2 1.320 1.064 Hull 3 1.400 1.100
Table 8. Validation of resistance and pitch magnitude of sample ships
View tableView in ArticleTable 8. Validation of resistance and pitch magnitude of sample ships
船编号 数值拟合阻力/N CFD计算阻力/N 阻力误差/% 数值拟合纵摇/(°) CFD计算纵摇/(°) 纵摇误差/% Hull 1 38.337 39.325 2.51 4.003 3.994 0.232 Hull 2 39.094 39.737 1.62 3.991 3.983 0.37 Hull 3 40.282 40.631 0.86 3.962 3.963 0.01
Table 9. Comparison of hydrodynamic performance between sample ships and ship Org
View tableView in ArticleTable 9. Comparison of hydrodynamic performance between sample ships and ship Org
船编号 总阻力/N 总阻力优化幅值/% 纵摇幅值/(°) 纵摇优化幅值/% 最大纵倾角/(°) 最大艉倾角/(°) Org 44.934 − 4.540 − 2.265 −2.275 Hull 1 39.325 12.483 3.994 12.026 1.783 −2.211 Hull 2 39.737 11.566 3.983 12.269 1.851 −2.132 Hull 3 40.631 9.576 3.963 12.709 1.832 −2.131
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Leyu LI, Jianwei WU, Decheng WAN. CFD-based optimization for resistance and pitch of KCS ship with appendages in waves[J]. Chinese Journal of Ship Research, 2022, 17(2): 63
Paper Information
Category: Ship Design and Performance
Received: Nov. 4, 2020
Accepted: --
Published Online: Mar. 24, 2025
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