| 基于DualSPHysics的数值波浪水槽研究 |
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| 引用本文： | 倪兴也,冯卫兵,杨 斌. 基于DualSPHysics的数值波浪水槽研究[J]. 水道港口, 2014, 0(2): 105-111 |
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| 作者姓名： | 倪兴也 冯卫兵 杨 斌 |
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| 作者单位： | [1]河海大学港口海岸与近海工程学院,南京210098 [2]河海大学海岸与海洋工程研究所,南京210098 |
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| 基金项目： | 江苏2012年度普通高校研究生科研创新计划项目（CXZZl2_0253） |
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| 摘 要： | 为更好地研究强非线性波浪问题(波浪翻卷、破碎及其与结构物相互作用等),基于DualSPHysics开源平台进行二次开发,采用SPH方法建立了二维数值波浪水槽。运用强制修正粒子加速度的方法实现阻尼消波功能,通过监测推波板前水位变化并实时修正造波信号实现了主动式消波功能,并对消波模块的阻尼消波性能和主动式消波性能进行了详细测试。结果表明,新型阻尼消波层的长度控制在1~2/3倍波长内即可形成可靠的开放式边界,主动式消波功能可将70%以上的能量反射波吸收。
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| 关 键 词： | SPH 数值波浪水槽 阻尼消波 |
Numerical wave tank based on DualSPHysics |
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| NI Xing-ye,FENG Wei-bing,YANG Bin. Numerical wave tank based on DualSPHysics[J]. Journal of Waterway and Harbour, 2014, 0(2): 105-111 |
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| Authors: | NI Xing-ye FENG Wei-bing YANG Bin |
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| Affiliation: | 1. College of Harbor, Coastal and Offshore Engineering, Hohai University, Nanjing 210098, China; 2. Research Institute of Coastal and Offshore Engineering, Hohai University, Nanjing 210098, China) |
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| Abstract: | In order to conduct a further research on highly nonlinear wave conditions, such as wave plunging, breaking and interaction with structures, a 2-D numerical wave tank was developed based on the open-source plat- form DualSPHysics and SPH method. The damping zone was implemented by correcting the acceleration of parti- cles, while the active wave absorption function was achieved by monitoring the variation of water surface and modify- ing control signal for wave-maker paddle in real time. A detailed test was carried out on the functions of damping zone and active wave absorption. It shows that a reliable open boundary can be obtained by this novel damping zone within the distance of 1 to 2/3 times of wave length, and more than 70% of the reflecting wave energy can be ab- sorbed by active wave absorption. |
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| Keywords: | SPH numerical wave tank damping zone |
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