摘要
目前提出了一种包括CFD流场分析和结构有限元分析的迭代方法用于模拟海洋立管的涡激振动。在迭代过程中,依次对流场和立管进行分析。在分析过程中把直接导致涡激振动的水动力载荷由流场传递到立管,该水动力载荷包括周期性的升力和阻力。然后把立管的振动定义为一个函数,用来描述下一步计算中流场中立管边界的运动。计算过程中,采用FLU-ENT(6.1.22版本)分析流场和ANSYS(8.1版本)计算立管的涡激响应。
In this paper,an iteration method between CFD analysis and structure finite element analysis is proposed. In the iteration,the fluid field and the riser response are calculated in turns. The hydrodynamic loads directly leading to vibration in the current, with the periodical lift force and drag force, are transferred from fluid field to riser. And the riser movement will be defined as a function,which is used to describe the riser wall boundary of fluid control volume in the following iteration step. During analysis,CFD software FLUENT（6.1.22 version） is used to analyze the fluid field and FE software ANSYS（8.1 version） is used to analyze the riser dynamic response.
出处
《中国海洋平台》
2007年第4期32-36,共5页
China offshore Platform
