| 螺旋列板绕流流场CFD分析 |
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| 引用本文： | 盛磊祥,陈国明.螺旋列板绕流流场CFD分析[J].中国造船,2010,51(1). |
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| 作者姓名： | 盛磊祥 陈国明 |
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| 作者单位： | 中国石油大学(华东)机电工程学院,山东,东营,257061 |
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| 基金项目： | 国家高技术研究发展计划(863)课题 |
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| 摘 要： | 隔水管是海洋钻井作业的关键设备,其安全性至关重要.涡激振动是隔水管失效的重要因素.水深小于500m时,优化隔水管系统可以避免使用涡激抑制装置,超过1000m,必须采用涡激抑制装置.螺旋列板是现场常用的涡激抑制装置.基于流体动力学方法,利用FLUENT软件求解螺旋列板三维绕流流场的控制方程,同时计算了钝体隔水管三维绕流流场,流场参数(升力系数、曳力系数、涡量等)特征进行对比分析,显示出螺旋列板在涡激抑制方面的优势.计算结果表明,虽然螺旋列板能够减小横向升力,但同时会导致流向曳力明显增加.
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| 关 键 词： | 螺旋列板 涡激抑制 流场 涡激振动 计算流体动力学 |
CFD Analysis on Flow Field of Helix Strakes |
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| SHENG Lei-xiang,CHEN Guo-ming.CFD Analysis on Flow Field of Helix Strakes[J].Shipbuilding of China,2010,51(1). |
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| Authors: | SHENG Lei-xiang CHEN Guo-ming |
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| Institution: | SHENG Lei-xiang,CHEN Guo-ming(China University of Petroleum,College of Mechanical , Electronic Engineering,Dongying,Sh,ong 257061,China) |
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| Abstract: | Riser is the key equipment in offshore drilling operation,its reliability must be guaranteed.Vortex induced vibration(VIV) is the main factor which leads riser to failure.When depth is lower than 500m,the VIV suppression device could not be used as optimizing riser system,but if the depth is larger than 1000m,VIV suppression device must be adopted.Based on CFD theory,the flow governing equations of helix strakes and riser is separately solved using FLUENT software.By comparing and analyzing the difference o... |
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| Keywords: | helix strakes VIV restrain flow field VIV CFD |
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