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Investigation of ship-bank, ship-bottom and ship-ship interactions by using potential flow method

机译：利用势流法研究船岸，船底和船舰相互作用

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摘要

The authors were inspired by the benchmark model test data in MASHCON [1, 2] and carried out some numerical studies on ship-bank, ship-bottom and ship-ship interactions based on potential flow method in the last few years. In the confined waterways, many researchers question the applicability of the classical potential flow method. The main objective of the present paper is to present some validations of the 3D boundary element method (BEM) against the model test data to exam the feasibility of the potential method in predicting the hydrodynamic behaviour of the ships in confined water. The methodology used in the present paper is a 3D boundary element method based on Rankine type Green function. The numerical simulation is based on the in-house developed multi-body hydrodynamic interaction program MHydro. We calculate the wave elevations and forces (or moments) when the ship is manoeuvring in shallow and narrow channel, or when the two ships is travelling side by side or crossing each other. These calculations are compared with the benchmark test data, as well as the published CFD results. Generally, the agreement between the present calculations and model test and CFD results are satisfactory, which indicates that the potential flow method and developed program are still capable to predict the hydrodynamic interaction involved in ship-bank, ship-bottom and ship-ship problem.
机译：作者受到MASHCON [1，2]中基准测试数据的启发，并在过去几年中基于势流方法对船库，船底和船舰相互作用进行了一些数值研究。在密闭水道中，许多研究人员质疑经典势流法的适用性。本文的主要目的是针对模型测试数据提出一些3D边界元方法（BEM）的验证，以检验潜在方法在密闭水中预测船舶水动力行为的可行性。本文使用的方法是基于兰金类型格林函数的3D边界元方法。数值模拟基于内部开发的多体流体动力相互作用程序MHydro。当船舶在浅而窄的通道中操纵时，或者当两艘船并排行驶或彼此交叉时，我们计算波浪的仰角和力（或力矩）。将这些计算与基准测试数据以及已发布的CFD结果进行比较。通常，目前的计算与模型测试和CFD结果之间的一致性是令人满意的，这表明潜在的流动方法和开发的程序仍然能够预测涉及船岸，船底和船舰问题的流体动力相互作用。

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    Yuan Z-M; Incecik A;

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  • 年度 2016
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