| 基于RANS法的船舶阻力及自由运动预报 |
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| 引用本文： | 林焰,何靖仪.基于RANS法的船舶阻力及自由运动预报[J].船舶工程,2019,41(12):52-57. |
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| 作者姓名： | 林焰 何靖仪 |
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| 作者单位： | 大连理工大学船舶工程学院,辽宁大连116024;大连理工大学工业装备结构分析国家重点实验室,辽宁大连116024;大连理工大学船舶工程学院,辽宁大连116024 |
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| 基金项目： | 国家重点实验室专项经费资助项目（S18315） |
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| 摘 要： | 文章介绍了基于RANS法求解船舶自由运动水动力性能的方法。通过对流域设计、网格划分方法、运动求解法及湍流模型的选择等进行完整的讨论与分析,提出了一套求解船舶自由运动的RANS方法。以低速船(KCS型船模)及高速船(Fridsma滑行艇)为计算对象,计算结果验证了RANS法在预报船舶自由航行时水动力性能的实用性。
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| 关 键 词： | RANS法 船舶阻力 水动力性能 自由运动 重叠网格 湍流模型 |
| 收稿时间： | 2019/5/4 0:00:00 |
| 修稿时间： | 2019/8/5 0:00:00 |
Prediction of Ship Resistance and Free Motion Based on RANS Method |
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| LIN Yan and HE Jing-yi.Prediction of Ship Resistance and Free Motion Based on RANS Method[J].Ship Engineering,2019,41(12):52-57. |
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| Authors: | LIN Yan and HE Jing-yi |
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| Institution: | Dalian University of Technology,Dalian University of Technology |
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| Abstract: | The method of solving hydrodynamic performance of ship in free motion based on RANS method is introduced. Through a comprehensive discussion and analysis of the design of flow field, grid generation method, motion solving method and turbulence solving technique, a RANS method for solving ship in free motion systematically is proposed. By taking KCS model of low-speed ship and Fridsma planing hull of high-speed ship as calculation objects, the practicability of RANS method in predicting hydrodynamic performance of ship in free motion is verified. The results show that the calculated values have relatively small errors comparing with the experimental values, and the calculation accuracy is further improved compared with the previous calculation methods. |
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| Keywords: | RANS hydrodynamic performance free motion Overset turbulence model |
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