| 基于显式有限元方法的二维楔形体砰击压力系数预报 |
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| 引用本文： | 许蕴蕾.基于显式有限元方法的二维楔形体砰击压力系数预报[J].船舶,2014(3):42-47. |
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| 作者姓名： | 许蕴蕾 |
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| 作者单位： | 海军驻上海地区舰艇设计研究军代室,上海200011 |
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| 摘 要： | 利用LS-DYNA软件对二维楔形体入水问题进行研究。基于显式有限元方法,选用任意拉格朗日-欧拉算法,建立了包含空气、水和楔形体的完全耦合的二维有限元模型,研究流场的射流现象与压力变化情况,预报了二维楔形体砰击压力系数,并与已公开发表的模型试验结果吻合较好,从而为后续砰击载荷计算提供可靠的方法。
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| 关 键 词： | LS-DYNA软件 二维楔形体 拉格朗日-欧拉算法 砰击压力系数 |
Slamming pressure coefficient prediction for water entry of 2D wedge body with explicit finite element method |
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| XU Yun-lei.Slamming pressure coefficient prediction for water entry of 2D wedge body with explicit finite element method[J].Ship & Boat,2014(3):42-47. |
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| Authors: | XU Yun-lei |
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| Institution: | XU Yun-lei (Representative Office of Naval Warship Design ＆ Research, Shanghai 200011, China) |
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| Abstract: | The water entry of a two-dimension wedge body has been studied by LS-DYNA software.Based on the explicit finite element and Arbitrary Lagrangian-Eulerian（ALE） algorithm,it builds up a two-dimension coupling finite element model including air,water and wedge,studies jet flow and pressure change,and predicts the slamming pressure coefficient of the two-dimension wedge body.The results are consistent with the published model test results,which can provide the reliable method for calculating of the slamming pressure coefficient. |
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| Keywords: | LS-DYNA software 2D wedge body Arbitrary Lagrangian-Eulerian（ALE）algorithm slamming pressure coefficient |
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