细长椭球体在水中自由下落的运动特性实验研究 1)
EXPERIMENTAL STUDY ON THE KINEMATICS OF FREELY FALLING PROLATE SPHERE IN THE WATER 1)
细长椭球体在水中自由下落的运动特性实验研究 1) |
| 詹军,张杰,阳倦成,倪明玖 |
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EXPERIMENTAL STUDY ON THE KINEMATICS OF FREELY FALLING PROLATE SPHERE IN THE WATER 1) |
| Zhan Jun,Zhang Jie,Yang Juancheng,Ni Mingjiu |
| 图6 不同路径类型所对应的典型物体的偏转角$\theta $以及水平速度随时间的演化比较, A状态: 小振幅不规则运动($L/d$ = 2, $Re_{d}$ =449.02)、B状态: 小振幅振荡运动($L/d$ = 6, $Re_{d}$ =372.08)、C状态: 大振幅振荡运动($L/d$ = 10, $Re_{d}$ = 474.60)、D状态: 高度非线性运动($L/d$ = 2, $Re_{d}$ = 1304.29)、直线运动($L/d$ = 10, $Re_{d}$ = 149.76) |
| Fig.6 Comparison of the time of inclination angle$\theta $ and horizontal velocity of the typical prolate sphere corresponding to different path types, for the low-amplitude irregular motion ($L/d$ = 2, $Re_{d}$ = 449.02), for the low-amplitude fluttering ($L/d$ = 6, $Re_{d}$ = 372.08), for the high-amplitude fluttering ($L/d$ = 10, $Re_{d}$ =474.60), for the highly nonlinear motion ($L/d$ = 2, $Re_{d}$ = 1304.29), and for the rectilinear motion ($L/d$ = 10, $Re_{d}$ = 149.76) |
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