| 螺旋列板对立管涡激振动的影响 |
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| 引用本文： | 景帅亮,张淑君.螺旋列板对立管涡激振动的影响[J].船舶工程,2017,39(12):102-106. |
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| 作者姓名： | 景帅亮 张淑君 |
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| 作者单位： | 河海大学力学与材料学院,南京,210098;河海大学力学与材料学院,南京,210098 |
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| 摘 要： | 为更好地理解螺旋列板对涡激振动(VIV)的影响,采用大涡模拟(LES)的方法,对长径比为10的立管和不同螺距、螺高的螺旋列板进行模拟分析。结果表明:附加螺旋列板加大了顺流向的阻力,并且在螺高一定时,阻力随着螺距的加大而增大;与螺距相比,螺旋列板的高度对立管VIV的影响更大,且随高度增大,抑制效果越好。
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| 关 键 词： | 螺旋列板 光滑立管 涡激振动 |
| 收稿时间： | 2017/6/16 0:00:00 |
| 修稿时间： | 2017/12/19 0:00:00 |
Effect of Helical Strakes on VIV of Riser |
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| jingshuailiang and.Effect of Helical Strakes on VIV of Riser[J].Ship Engineering,2017,39(12):102-106. |
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| Authors: | jingshuailiang and |
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| Institution: | College of Mechanics and Materials,Hohai University,College of Mechanics and Materials,Hohai University |
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| Abstract: | In order to better understand the effect of the helical strakes on the VIV, the LES method is used to simulate and analyze the riser with a length to diameter of 10 and the helical strakes with different pitch and height. The results show that the helical strakes increase the resistance of the downstream flow. The resistance increases with the increase of the pitch when the height is constant. The height of the helical strakes is greater than the pitch, and more increasing of the height, the better the suppression effects. |
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| Keywords: | helical strakes smooth riser vortex-induced vibration (VIV) |
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