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螺旋侧板的高度对VIV影响的CFD分析
螺旋侧板 高度
2015/8/19
深水立管是海洋石油工业的核心设备,它在来流作用下容易产生流向和横向的周期性位移振动(VIV),这种流固耦合作用会加剧立管结构疲劳,最终导致其功能失效。之前的研究发现螺旋侧板可以有效的抑制涡激振动的影响,其中侧板高度、螺距和覆盖率等几何参数决定了螺旋侧板的抑制效率。本文的主要目的是基于CFD对不同高度螺旋侧板的立管的尾流场进行数值模拟。结果表明：在研究范围内,螺旋侧板随高度增大抑制涡激振动效果越好,...
Development of Time Domain VIV Response Analysis Method Based on Measured VIV Hydrodynamic Force
Time Domain VIV Response Analysis Method Measured VIV Hydrodynamic Force
2009/4/21
A time domain analysis method of Vortex Induced Vibration (VIV) was developed for risers and towing pipes with curvature. Risers are increasingly installed in deepwater and catenary shape is used util...
Numerical Analysis of Cylindrical Structure VIV Response by Discrete Vertex Method
Cylindrical Structure VIV Discrete Vertex Method
2009/4/3
A quasi 3 dimensional VIV response analysis method which combined 2 dimensional hydrodynamic force simulation by discrete vortex method with 3 dimensional finite element method has been proposed. Use ...