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）