摘要
对三维复杂结构Spar平台垂荡板进行垂荡运动的数值模拟,并对垂荡板附近流场及水动力系数进行对比分析。结果表明:在主板尺寸相同情况下,主板边缘附近较小的角钢结构会对垂荡板流场产生明显影响,并导致水动力性能的较大差距;水动力系数计算结果与流场分析的结论一致。虽然复杂板架结构的三维建模及网格划分难度很大,但是在Spar平台垂荡板工程设计中不能完全采用简化光滑平板代替真实、复杂结构形式的垂荡板进行水动力性能的计算。
HUANG Miao-miao,WU Cheng-sheng,WU Wei-wu,KUANG Xiao-feng,MIAO Quan-ming（China Ship Scientific Research Center,Wuxi 214082,China）
In this paper,numerical simulation is established to simulate complex three-dimensional heave damping plates on Spar platform.The numerical results indicate that the small corner steel structure plays an important role in flow fields;and the hydrodynamic coefficients are quite different from each other;nevertheless the three plates have the same principal size.The calculation results of hydrodynamic coefficients agree well with the analysis of flow characteristic.It is shown that a practical plate with complex structure can′t be simplified as a smooth plate to achieve precise hydrodynamic coefficients of heave plates.
出处
《海洋工程》
CSCD
北大核心
2013年第3期18-23,共6页
The Ocean Engineering
关键词
复杂结构
垂荡板
涡量
SPAR平台
complex steel structure
heave damping plate
vortex
Spar platform
