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尺度参数对海上风机基础结构波浪力特征的影响
Authors
周济福
王旭
陈凌
Publication date
20 December 2016
Publisher
Abstract
为适应大容量海上风机的承载需求,支撑机构的尺度越来越大,在水动力学上可能介于小尺度和大尺度之间.对于这类中等尺度的结构,其波浪力的组成和计算方法对于海上风电工程设计十分重要.本文通过建立数值波浪水槽,对直立圆柱在线性波条件下的波浪力进行数值模拟研究.通过分别求解带自由面的Navier-Stokes(N-S)方程和Euler方程,准确分离黏性力与惯性力,详细探讨了黏性力和惯性力随圆柱尺度比的变化规律,给出了各自表现显著的尺度区间,定量分析了忽略黏性力或绕射力产生的误差.据此提出了中等尺度的概念,并给出了不同尺度结构波浪力的计算方法
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Institute Of Mechanics,Chinese Academy of Sciences
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Last time updated on 12/02/2018