| 船体曲面几何表达及水动力性能计算的NURBS方法 |
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| 引用本文： | 张晓兔,滕斌,信书.船体曲面几何表达及水动力性能计算的NURBS方法[J].海洋工程,2004,22(2):7-12. |
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| 作者姓名： | 张晓兔 滕斌 信书 |
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| 作者单位： | 大连理工大学,海岸和近海工程国家重点实验室,辽宁,大连,116024 |
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| 基金项目： | 国家杰出青年基金资助项目(50025924) |
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| 摘 要： | 采用非均匀有理B样条(NURBS)对船体曲面形状进行几何表达，所生成的网格直接用于后续的有关船体水动力性能计算工作中。对Wigley船型的线性兴波阻力和斜航操纵运动的船体，结合近似的Kutta条件作了相应的数值计算，从与试验结果的比较来看，该方法具有较好的工程精度，对船舶及海洋工程领域中的计算机辅助设计(CAD)与计算流体动力学(CFD)之间的相互集成，具有推动与促进作用。
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| 关 键 词： | 非均匀有理B样条 计算机辅助设计 计算流体动力学 水动力性能 |
| 文章编号： | 1005-9865(2004)02-0007-06 |
NURBS method for surface geometrical expression and hydrodynamic performance calculation of ship hull |
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| ZHANG Xiao-tu,TENG Bin,XIN Shu and Offshore Engineering,Dalian University of Techonology,Dalian,China.NURBS method for surface geometrical expression and hydrodynamic performance calculation of ship hull[J].Ocean Engineering,2004,22(2):7-12. |
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| Authors: | ZHANG Xiao-tu TENG Bin XIN Shu and Offshore Engineering Dalian University of Techonology Dalian China |
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| Institution: | ZHANG Xiao-tu,TENG Bin,XIN Shu and Offshore Engineering,Dalian University of Techonology,Dalian 116024,China) |
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| Abstract: | This paper adopts the non-uniform rational B-spline(NURBS)to express the geometry of ship hull and the grids generated by the method are directly used in the calculation for hydrodynamic performance of hull.The wave-making resistance and maneuvering hydrodynamics of a Wigley ship at an attack angle with an approximate Kuta condition are numerically computed by using the present method.The comparison of experimental results,shows that the method has engineering precision and a positive effect for the mutual integration between computer aided design(CAD)and computational fluid dynamics(CFD)in the naval architecture and ocean engineering. |
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| Keywords: | non-uniform rational B-spline computer aided design computational fluid dynamics hydrodynamic performance |
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