波浪对非淹没竖直圆柱作用的数值分析Numerical Investigation on Free Surface Waves Past Non-Submerged Vertical Circular Cylinders
吴昊;朱际休;廖斌;陈善群;
摘要(Abstract):
基于雷诺时均Navier-Stokes方程(RANS)和连续方程,结合k-ω湍流模型,建立波浪与非淹没竖直圆柱相互作用的三维数值模型.在验证波浪对单个竖直圆柱波浪力和自由液面高程的基础上,着重研究圆柱间距S对两串联竖直圆柱波浪力与自由液面高程的影响.计算结果表明,圆柱间距S较大时(S=4 D),两串联圆柱中上游圆柱波浪力与单圆柱波浪力的演化曲线较为吻合;圆柱间距S较小(S=0.5 D)时,上游圆柱背风面自由液面高程明显抬升,使得上游圆柱波浪力较单圆柱大,同时上游圆柱侧方自由液面高程受反射波的影响较大.
关键词(KeyWords): 波浪力;自由液面;非淹没竖直圆柱;Level-Set方法
基金项目(Foundation): 安徽工程大学研究生实践与创新基金资助项目(Y040117013)
作者(Author): 吴昊;朱际休;廖斌;陈善群;
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