Ikeda two-dimensional cylinders

This data has been collected with manual digitalization from the following paper: [1] Ikeda, Y., 1978. On eddy making component of roll damping force on naked hull. University of Osaka Prefacture, Department of Naval Architecture, Japan, Report No. 00403, Published in: Journal of Society of Naval Architects of Japan, Volume 142. The data can be used to predict ship eddy damping. Nomenclature: row number: same as in Table 1 [1] phi_a : roll amplitude [rad] B_star_hat omega_hat model : section model name B_W+B_F : Obtained value from plots B_E_star_hat L_pp : length of section [m] beam : section beam [m] T : section draught [m] Disp : section displacement [m^3] H0 : half beam to draught ratio sigma : section area coefficient OG/d : centre of rotation R : bilge radius [m] B_E0_HAT : eddy damping C_r : eddy damping coefficient a_1 : lewis section coefficient a_3 : lewis section coefficient本数据集通过手动数字化方式从以下文献提取得到： [1] Ikeda, Y., 1978. 论裸船体横摇阻尼力的涡流产生分量. 日本大阪府立大学造船工程系, 报告编号00403, 发表于《日本造船学会志》第142卷. 本数据集可用于船舶涡流阻尼的预测。 符号表： 行号：与文献[1]中的表1一致 φ_a：横摇幅值 [rad] B_star_hat ω_hat model：剖面模型名称 B_W+B_F：由绘图获取的数值 B_E_star_hat L_pp：剖面长度 [m] beam：剖面型宽 [m] T：剖面吃水 [m] Disp：剖面排水体积 [m³] H0：半型宽与吃水之比 σ：剖面面积系数 OG/d：旋转中心 R：舭部半径 [m] B_E0_HAT：涡流阻尼 C_r：涡流阻尼系数 a_1：刘易斯剖面系数（Lewis section coefficient） a_3：刘易斯剖面系数（Lewis section coefficient）