Practical Development of CIP based Cartesian Grid Method for Prediction of Seakeeping Performance in Rough Seas

基于 CIP 的笛卡尔网格方法预测波涛汹涌的耐波性能的实际发展

• 批准号: 21360433
• 负责人: HU Changhong
• 金额: $ 6.41万
• 依托单位: Kyushu University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21360433/
• 关键词: 推進; 運動性能; 船舶海洋工学; 荒天中の耐航性問題; 数値流体力学; CIP・直交格子法; 流体・構造連成解析

The achievements of this project are as follows.(1) THINC scheme, which is an interface capturing method, has been improved. The accuracy of the free surface calculation is increased by the improved method for the case using moving variable meshes.(2) A 6-DoF ship motion calculation method was developed by using quaternions. Numerical simulation of a ship in quartering waves has been successfully carried out by this method.(3) Fluid structure interaction simulation based on Cartesian grid method was studied. A coupled approach with a finite difference method and a finite element method was developed for simulating the interaction between free surface flows and a thin elastic plate.(4) A parallel version of the three-dimensional CIP based Cartesian grid code was developed. Very large-scale numerical simulations can be performed by the parallel code in PC cluster systems.

该项目的成果如下。(1)改进了界面捕捉方法THINC方案。对于采用移动变网格的情况，改进后的方法提高了自由面计算的精度。(2)提出了一种基于四元数的六自由度船舶运动计算方法。利用该方法对船舶在四分之一波中的运动进行了数值模拟。(3)研究了基于直角坐标网格法的流固耦合仿真。本文提出了一种有限差分法和有限元法耦合的方法来模拟自由表面流动与弹性薄板的相互作用。(4)开发了一个基于CIP的三维笛卡尔网格程序的并行版本。该并行程序可在PC机群系统上进行超大规模的数值模拟。

项目成果

Two-dimensional numerical simulation and experiment on strongly nonlinear wave–body interactions

• DOI: 10.1007/s00773-008-0031-4
• 发表时间: 2009-06
• 期刊: Journal of Marine Science and Technology
• 影响因子: 2.6
• 作者: Changhong Hu;M. Kashiwagi

CIP・直交格子法による斜波中船体運動の数値シミュレーション

利用CIP/正交网格法对斜波中船舶运动进行数值模拟

• 发表时间: 2009
• 作者: 斧田康佑;小林英一;越村俊一;胡長洪,末吉誠
• 通讯作者: 胡長洪,末吉誠

Numerical simulation and experiment on dam break problem

• DOI: 10.1007/s11804-010-9075-z
• 发表时间: 2010-05
• 期刊: Journal of Marine Science and Application
• 影响因子: 1.8
• 作者: Changhong Hu;M. Sueyoshi

Numerical Simulation of Extreme Wave Generation Using VOF Method

• DOI: 10.1016/s1001-6058(09)60078-0
• 发表时间: 2010-08
• 期刊: Journal of Hydrodynamics
• 影响因子: 2.5
• 作者: Xi-zeng Zhao;Changhong Hu;Zhao-chen Sun

Weak Coupling Method Using CIP and FEM for Water Impact Analysis

使用 CIP 和 FEM 的弱耦合方法进行水影响分析

• 发表时间: 2009
• 期刊: Proceedings of the 15th International Conference on Finite Elements in Flow Problems
• 作者: C.Hu;X.Chen
• 通讯作者: X.Chen