摘要
以一种基于 NU RBS(non- uniform rational B- splines,非均匀有理 B样条 )的域外奇点高阶面元法计算了排水型高速双体船兴波波形与波形阻力。该方法以 NU RBS准确地表达船体表面、待求的自由面兴波波形和船体表面上及置于自由面上方一定高度的未知源强分布曲面。所引入的方尾边界条件及相应数值处理简单而有效。计算结果较好地反映了排水型高速双体船由于片体内侧的散波干扰作用而形成的复杂兴波波系的特征并求得与实验值接近的波形阻力。
The wave patterns and wave pattern resistance for high speed displacement catamarans are calculated adopting a generalized high order panel method based on NURBS (non uniform rational B splines). NURBS are employed to represent the body geometry, disturbed free surface and the unknown source strength distribution on the body surface and above the free surface. The introduced boundary condition at the transom stern and corresponding numerical treatment are simple and effective. The calculated results characterize the complex wave system caused by the interference of divergent waves between the demihulls. The wave pattern resistance calculated is reasonable compared with the experiment data.
出处
《武汉理工大学学报》
CAS
CSCD
2003年第6期56-59,共4页
Journal of Wuhan University of Technology
基金
湖北省自然科学基金资助项目 (99J0 17)
