| 带固定人工水线三维斜拉索绕流的数值模拟 |
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| 引用本文： | 李寿英,顾明. 带固定人工水线三维斜拉索绕流的数值模拟[J]. 同济大学学报(自然科学版), 2005, 33(5): 590-594 |
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| 作者姓名： | 李寿英 顾明 |
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| 作者单位： | 同济大学,土木工程防灾国家重点实验室,上海,200092 |
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| 基金项目： | 国家创新研究群体基金资助项目(50321003)，国家自然科学基金资助项目(50178049)，上海市科委科技攻关资助项目(036511002)，教育部高等学校骨干教师资助计划资助项目 |
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| 摘 要： | 采用计算流体力学软件CFX5.5对带固定人工水线斜拉索的绕流进行数值模拟.选取两种人工水线,计算了倾角为30°、风攻角为35°时带固定人工水线拉索的阻力系数、升力系数、表面平均压力系数、固定人工水线上的气动力等,并与试验结果进行比较.计算表明,表面平均压力系数在水线上有一突降;倾角为30°、风攻角为35°时带固定人工水线拉索的旋涡脱落包含许多低频成分.
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| 关 键 词： | 斜拉索 固定人工水线 数值模拟 阻力系数 升力系数 压力系数 |
| 文章编号： | 0253-374X(2005)05-0590-05 |
Numerical Simulation of Flow around Stay Cables with Artificial Rivulet |
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| LI Shou-ying,GU Ming. Numerical Simulation of Flow around Stay Cables with Artificial Rivulet[J]. Journal of Tongji University(Natural Science), 2005, 33(5): 590-594 |
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| Authors: | LI Shou-ying GU Ming |
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| Abstract: | A numerical simulation for flow around a stayed cable with fixed upper artificial rivulets is carried out using CFX5.5.The inclined angle of stayed cable is 30 degrees and the yaw angle is 35 degrees.The pressure and force coefficients acting on the cable and on the upper rivulet are obtained and then compared with the experimental results from other literatures.The simulation shows that there is a sudden reduction of the mean pressure coefficient on the upper rivulet and there exist many low frequency components in the vortex behind the stayed cable. |
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| Keywords: | stay cables fixed artificial rivulet numerical simulation drag coefficient lift coefficient pressure coefficient |
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