Analytical models of sub-supercritical ship hydrodynamic pressure field with the dispersive effect
Analytical models of sub-supercritical ship hydrodynamic pressure field with the dispersive effect
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具有色散效应的亚超临界船舶动水压力场解析模型
DOI：
10.1016/j.oceaneng.2017.01.028
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发表时间：
2017-03
影响因子：
5
通讯作者：
Gu Jian-nong
中科院分区：
文献类型：
--
作者：
Zhang Zhi-hong;Deng Hui;Li Yu-chen;Gu Jian-nong
基于势流理论，考虑频散效应，建立了满足拉普拉斯方程、自由水面和海床边界条件的浅水波方程。根据细长船假设和内外区交界面连续匹配条件，利用傅里叶积分变换法对亚超临界混合流的数学问题进行了解析求解，推导了疏浚航道中亚超临界船舶动水压力场的解析模型，并建立了开敞水域中亚超临界船舶动水压力场的解析模型。进一步简化或采用类似的方法也可得到矩形渠道和阶梯渠道。得到了亚超临界流体在疏浚河道中的分布特征，分析了横向距离、内外水深、宽度、水深弗劳德数等因素对亚超临界流体的影响。通过与相应的实验结果的比较，验证了考虑色散效应的SHPF解析模型的正确性。
Based on the potential flow theory, taking the dispersive effect into account, a shallow-water wave equation which satisfies Laplace equation, free surface and seabed boundary conditions is established. According to the slender ship assumption and the continuous matched condition on the interface of inner and outer regions, the mathematical problems of sub-supercritical mixed flow are analytically solved by using the Fourier integral transform method, meanwhile, the analytical models of sub-supercritical ship hydrodynamic pressure field (SHPF) in dredged channel are derived, and those of open water, rectangular canal and stepped canal can also be obtained by further simplifying or adopting similar method. The distribution characteristics of sub-supercritical SHPF in dredged channel are acquired, and the effects of transverse distance, inner or outer water depth, width, and depth Froude number on SHPF are analyzed. The SHPF analytical models with the dispersive effect are verified by comparing with the corresponding experimental results.
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影响因子：
3.7
作者：
Xue-nong Chen;S. Sharma
通讯作者：
Xue-nong Chen;S. Sharma
DOI：
--
发表时间：
1973
期刊：
--
影响因子：
--
作者：
E. Tuck
通讯作者：
E. Tuck
DOI：
--
发表时间：
2006
期刊：
Journal of Ship Mechanics
影响因子：
--
作者：
Gu Jian-nong
通讯作者：
Gu Jian-nong
影响因子：
3.7
作者：
C. Mei
通讯作者：
C. Mei
影响因子：
1.4
作者：
R. Beck;J. N. Newman;E. Tuck
通讯作者：
R. Beck;J. N. Newman;E. Tuck