Simulation on Slamming of a Vessel by CIP Method
Simulation on Slamming of a Vessel by CIP Method
复制标题
CIP法模拟船舶砰击事件
DOI：
10.1143/jpsj.68.2576
复制
发表时间：
1999
影响因子：
1.7
通讯作者：
T. Yabe
中科院分区：
文献类型：
--
作者：
M. Tajima;T. Yabe
采用CIP（三次插值伪粒子/传播）方法模拟船舶对水面的冲击。仿真结果表明，容器与水面之间的空气层对压力分布起着重要的决定作用。特别是在小攻角（或死角）时，沿着容器和水之间的这一层气流的速度足以引起开尔文-亥姆霍兹不稳定性，从而导致小波长的水波。由于这个空气层的存在，在小攻角下的最大压力与Wagner的理论相比大大降低，与Chuang的实验更加接近。
Impact of a vessel on water surface is simulated by the CIP (Cubic-Interpolated Pseudoparticle/ Propagation) scheme. The simulation demonstrates that air layer between vessel and water surface plays an important role to determine the pressure profile. In particular at small attack angle (or dead-rise angle), air flow along this layer between vessel and water gains speed sufficient to induce the Kelvin-Helmholtz instability which leads to a water wave of small wavelength. Because of this air layer, the maximum pressure is largely reduced at the small attack angle compared with Wagner's theory and becomes much closer to Chuang's experiment.