| 浅水超临界航速舰船水压场数值计算 |
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| 引用本文： | 邓辉,张志宏,刘巨斌,顾建农.浅水超临界航速舰船水压场数值计算[J].船舶力学,2015(5):493-500. |
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| 作者姓名： | 邓辉 张志宏 刘巨斌 顾建农 |
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| 作者单位： | 海军工程大学 理学院,武汉,430033 |
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| 基金项目： | 国防预研项目(513030203)；海军工程大学自然科学基金资助项目 |
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| 摘 要： | 文章基于浅水波动势流理论和薄船假定，建立了浅水超临界航速舰船水压场理论模型。采用有限差分方法，对不同宽度航道下浅水超临界航速舰船水压场进行了数值计算。分析了航道岸壁、水深佛鲁德数、色散效应对舰船水压场的影响。通过与傅里叶积分变换法以及实验结果进行比对，表明了所建立的舰船水压场理论模型与计算方法吻合得较好。
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| 关 键 词： | 浅水 超临界航速 舰船 水压场 有限差分法 傅里叶积分变换法 |
Numerical calculation of pressure field caused by ship moving at supercritical speed in shallow water |
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| DENG Hui,ZHANG Zhi-hong,LIU Ju-bin,GU Jian-nong.Numerical calculation of pressure field caused by ship moving at supercritical speed in shallow water[J].Journal of Ship Mechanics,2015(5):493-500. |
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| Authors: | DENG Hui ZHANG Zhi-hong LIU Ju-bin GU Jian-nong |
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| Abstract: | A mathematical model for pressure field caused by ship moving at supercritical speed in shallow water was established, based on the shallow water wave potential flow theory and slender ship assumption. The pressure field caused by ship moving at supercritical speed in shallow water was calculated by using the finite difference method. The effects of channel wall, depth Froude number and dispersion characteris-tics on the ship hydrodynamic pressure field were analyzed. The computed results were compared with the ones of Fourier integral transform method and experiment. The mathematical model and the calculation method were validated have a good agreement. |
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| Keywords: | shallow water supercritical speed ship hydrodynamic pressure field finite difference method Fourier integral transform method |
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