M型滑行艇规则波中运动稳定性问题研究

摘要

采用黏性的CFD商业软件STAR-CCM+,基于重叠网格技术和DFBI(动态体驱动模块)模拟刚体的6-DOF运动,解决了滑行艇的动航态问题.通过建立波浪数值水池,对单M与双M船在迎浪规则波中的2-DOF运动进行数值模拟,对两者在迎浪规则波中的波浪增阻、运动响应和运动稳定性等问题进行比较分析.结果表明,双M 船在迎浪规则波中更易发生跳跃现象,但是具有更小的增阻系数,同时在短波中具有更小的运动响应.%Based on the viscous CFD software STAR-CCM+,the 6-DOF motion of rigid body was sim-ulated to solve the problem of the dynamic navigation state of planning craft by overset grid technolo-gy and DFBI(Dynamic Fluid-Body Interaction)module.Through the establishment of numerical wave tank,the 2-DOF motions of single M-hull and double M-hull ship(M & DM)in regular head waves were simulated separately.The comparison were analyzed on the wave added resistance,motion re-sponse and motion stability in regular head waves.The results show that it's more likely to happen the jump phenomenon for DM in regular head waves but it has a lower added resistance coefficient. Meanwhile,the motion response of DM is smaller in short waves.