Effect of variable current on vortex-induced vibrations

被引:0
|
作者
Vikestad, K [1 ]
Halse, KH [1 ]
机构
[1] Norwegian Marine Technol Res Inst AS, Trondheim, Norway
关键词
flow-induced vibration; VIV; experiments;
D O I
暂无
中图分类号
U6 [水路运输]; P75 [海洋工程];
学科分类号
0814 ; 081505 ; 0824 ; 082401 ;
摘要
Experiments are described whose objective was to investigate the combined effect of current and waves by studying an elastically mounted circular cylinder in a time-varying flow. This is relevant for risers subjected to both current and wave-induced motion. The rigid cylinder section was 75 mm in diameter and 2 meters long and mounted horizontally in a towing tank. The time-varying flow consisted of a constant and a harmonic velocity component. The general conclusion from the experiments is that both the amplitude and acceleration response of a cylinder subjected to constant + harmonic current is smaller than for constant current only.
引用
收藏
页码:493 / 498
页数:6
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