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| A numerical method for fluid-structure interaction with large deformation towards the damage of warship structures |
| Received:August 16, 2022 Revised:December 19, 2022 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx20220816002 |
| KeyWord:fluid-structure interaction with large deformation immersed boundary method damage of naval warships parallel programming framework |
| Author | Institution |
| 王杰 |
中物院高性能数值模拟软件中心, 北京 ;北京应用物理与计算数学研究所, 北京 |
| 王景焘 |
中物院高性能数值模拟软件中心, 北京 ;北京应用物理与计算数学研究所, 北京 |
| 黄超 |
中物院高性能数值模拟软件中心, 北京 ;北京应用物理与计算数学研究所, 北京 |
| 伍洋 |
中物院高性能数值模拟软件中心, 北京 ;北京应用物理与计算数学研究所, 北京 |
| 刘娜 |
中物院高性能数值模拟软件中心, 北京 ;北京应用物理与计算数学研究所, 北京 |
| 张磐 |
中物院高性能数值模拟软件中心, 北京 ;北京应用物理与计算数学研究所, 北京 |
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| Abstract: |
| The key challenge to simulate the complex dynamic responses of naval warships subjected to underwater explosions with high fidelity is how to establish a numerical method which can precisely calculate the fluid-structure interaction with large deformation.In this paper,we propose a high-precision method for two-way fluid-structure interaction(FSI) based on the immersed boundary idea,including a high-resolution description of the coupling interface of a shell with large deformation and a highly accurate imposition method of the coupling conditions.Furthermore,a complete numerical scheme of fluid-structure interaction is presented for naval warships subjected to underwater explosions with large deformation.A special CAE computer program is developed with the aid of the parallel programming framework,which has the parallel capability scaling up to ten thousand CPU cores.The presented method is compared with the Taylor’s plate theory and underwater impact experiments.The results show the efficiency and the accuracy of the method on FSI with large deformation.Additionally,a whole warship of complex structures subjected to an underwater explosion is numerically simulated.The proposed method exhibits a wide prospect in the applications to accurately evaluate the damage level of warships subjected to underwater explosion. |
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