Fluid-structure interaction study on flexible sail performance in upwind conditions

Table 1. Geometrical parameters of the sail
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Table 1. Geometrical parameters of the sail
截面高度/mm 弦长/mm 扭角/(°) 拱度率/%
foot 0 4 000 0 8
25% 3 000 3 000 5 10
50% 6 000 2 000 10 12
75% 9 000 1 000 15 14
top 11 900 10 20 16

Table 2. Material properties of Kevlar^® 49^[9]
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Table 2. Material properties of Kevlar^® 49^[9]
参数数值
密度$ \rho $/(kg·m−3) 1 439.4
弹性模量$ E/\mathrm{G}\mathrm{P}\mathrm{a} $ 124
泊松比$ \mu $ 0.36
厚度$ t $/mm 0.34

Table 3. Lift and drag coefficients of the initial and deformed sails

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Table 3. Lift and drag coefficients of the initial and deformed sails

参数	本文计算值			文献参考值^[9]
参数	初始风帆	变形风帆	差异率/%	初始风帆	变形风帆	差异率/%
${C_{\rm{L}} }$	0.721 5	0.714 4	−0.98	0.698 3	0.690 6	−0.19
${C_{\rm{D}} }$	0.106 4	0.109 3	2.73	0.115 4	0.121 1	4.88
${C_{\rm{L}} }/{C_{\rm{D}} }$	6.781 0	6.536 1	−3.61	5.982 0	5.693 0	−4.84

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Zejiang FANG, Junzhe TAN, Guangying JI, Peng YUAN, Ze SUN, Shujie WANG. Fluid-structure interaction study on flexible sail performance in upwind conditions[J]. Chinese Journal of Ship Research, 2022, 17(3): 221

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