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首页> 外文会议>IEEE International Conference on Information and Automation >Applying Dynamic Hybrid Grids Method to Simulate AUV Docking with a Tube
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Applying Dynamic Hybrid Grids Method to Simulate AUV Docking with a Tube

机译：应用动态混合网格法模拟带管的AUV对接

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摘要

It is necessary for keeping Autonomous Underwater Vehicle (AUV) on station to realize AUV docking underwater for AUV charging, data transferring and checking. While the flow field in AUV underwater docking is coupled caused by multi-body moving, which is a difficult problem for Computational Fluid Dynamics (CFD) to solve. Hybrid dynamic grids method has been presented in simulating AUV docking with a torpedo shaped tube. A mesh topology including hybrid grids domain is built which including hexahedral, prismatic and tetrahedral grids. With the motion of AUV, dynamic layering method is used to update mesh. Compared with spring analogy and local re-meshing method, Dynamic layering method significantly improves the robustness for problems with large motions of bodies without much penalty in CPU time during re-meshing. The numerical result gets pressure contours at different time, and the resistant coefficient of AUV during docking processes for more than 10 meters, the resistance when AUV at unbounded domain solved by this method agrees well with that of coordinate transformation method. This research is not only helpful for improving control resolution in AUV underwater docking with tube, but also get a method to solve the hydrodynamics for multi-body moving relatively, which is popular in ocean engineering.
机译：必须在站上保持自动水下车辆（AUV），以实现AUV对接的AUV充电，数据传输和检查。虽然AUV水下对接中的流场是由多体移动引起的，但是对于计算流体动力学（CFD）是解决的难题。用鱼雷形管模拟AUV对接，介绍了混合动态网格方法。包括混合网格域的网格拓扑结构是构建的，包括六面对面，棱柱形和四面体网格。随着AUV的运动，动态分层方法用于更新网格。与春天类比和局部重新啮合的方法相比，动态分层方法显着提高了在重新啮合期间在CPU时间内没有多大惩罚的机构大量的问题的鲁棒性。数值结果在对接过程中的不同时间和AUV的抗性系数达到10米以上，这种方法通过该方法解决的未绑定域在坐标变换方法的情况下吻合时的阻力。该研究不仅有助于改善AUV水下对接的控制分辨率，还可以获得一种解决多体移动的流体动力学的方法，在海洋工程中很受欢迎。

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