...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Ocean Engineering >Numerical prediction of wave added resistance using a Rankine Panel method
【24h】

Numerical prediction of wave added resistance using a Rankine Panel method

机译：利用兰金面板法数值预测波浪附加阻力

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Based on a time domain Rankine panel method, a computer code was developed to predict wave added resistance. The unknown variables of the discretized flow field boundaries were represented using the quadratic B-spline basis function; the temporal derivative of the free surface conditions were approximated using an Euler scheme. The added resistance was computed via a near-field method. Three numerical approaches were introduced, namely, choosing the boundary end condition, neglecting the second order derivative of the disturbed potential, and computing the water line integral. Numerical computations were conducted in short and long waves for a Wigley hull, the S-175 container ship, and the KVLCC2 tanker. The double-body linearization and the Neumann-Kelvin linearization were tested, and numerical results were compared to published experimental measurements and numerical data. Fairly good agreement was found between the results of double-body linearization and the published data. Effects of wave radiation and diffraction on added resistance were analyzed, demonstrating that the interaction between radiation and diffraction should not be omitted in long waves.
机译：基于时域兰金面板法，开发了计算机代码来预测增加的波阻。离散流场边界的未知变量用二次B样条基函数表示；自由表面条件的时间导数使用欧拉方案近似。附加电阻通过近场方法计算。介绍了三种数值方法，即选择边界终止条件，忽略扰动电位的二阶导数以及计算水线积分。对于Wigley船体，S-175集装箱船和KVLCC2油轮，在短波和长波中进行了数值计算。测试了双体线性化和Neumann-Kelvin线性化，并将数值结果与已发布的实验测量结果和数值数据进行了比较。在双体线性化的结果和已发布的数据之间发现了相当好的一致性。分析了波辐射和衍射对附加电阻的影响，表明在长波中不应忽略辐射和衍射之间的相互作用。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号