• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International Journal of Offshore and Polar Engineering >Numerical Analysis of Large-Amplitude Ship Motions Using FV-based Cartesian Grid Method
【24h】

Numerical Analysis of Large-Amplitude Ship Motions Using FV-based Cartesian Grid Method

机译：基于FV的笛卡尔网格方法对大幅度船舶运动的数值分析

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

A finite-volume (FV)-based method on a non-uniform Cartesian grid with staggered arrangement of variables is applied to simulate and analyze large-amplitude ship motions. The wave-body interaction problem is considered as a multi-phase problem with water, air, and solid phases. Each phase is identified by a volume-fraction function in each cell. In order to capture the interface between air and water, the tangent of hyperbola for interface capturing (THINC) scheme is used with weighed line interface calculation (WLIC) method. The volume fraction of a solid body embedded in a Cartesian grid system is calculated by a level-set based algorithm, and the body boundary condition is imposed by a volume-weighted formula. Wave excitation force and moment and hydrodynamic coefficients are validated for a Wigley Ⅲ hull. Numerical simulations for the ship motion in linear waves also have been carried out to validate the newly developed code. The computational results for the Wigley Ⅲ hull with different forward speeds are compared with experimental data. To demonstrate the applicability of the method for highly nonlinear wave-body interactions such as green water on the deck, numerical analysis of the large-amplitude ship motion of an S175 containership is conducted.
机译：在变量分布交错的非均匀笛卡尔网格上，基于有限体积（FV）的方法被用于模拟和分析大幅度船舶运动。波体相互作用问题被认为是具有水，空气和固相的多相问题。每个阶段都由每个单元格中的体积分数函数来标识。为了捕获空气与水之间的界面，将界面捕获的双曲线正切（THINC）方案与加权线界面计算（WLIC）方法一起使用。嵌入在笛卡尔网格系统中的实体的体积分数是通过基于水平集的算法来计算的，而体边界条件是通过体积加权公式来施加的。验证了WigleyⅢ船体的波浪激励力，力矩和流体动力系数。还对船在线性波中的运动进行了数值模拟，以验证新开发的规范。将具有不同前进速度的WigleyⅢ船体的计算结果与实验数据进行了比较。为了证明该方法对高度非线性的波体相互作用（例如甲板上的绿色水）的适用性，对S175集装箱船的大幅度船舶运动进行了数值分析。

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