| 串列钝体绕流的数值计算 |
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| 引用本文： | 楼小峰,曹丰产,林志兴.串列钝体绕流的数值计算[J].同济大学学报(自然科学版),2002,30(5):604-608. |
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| 作者姓名： | 楼小峰 曹丰产 林志兴 |
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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： | 国家自然科学基金重大资助项目 (5 9895 410 ) |
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| 摘 要： | 用二阶投影法求解二维不可压粘性流体的N -S方程 ,计算了高雷诺数Re=1× 10 5下串列圆柱的非定常绕流 ,得到的阻力系数及斯特劳哈尔数与试验结果吻合良好 ,结合工程实际 ,用同一程序计算预测了钢管混凝土拱桥哑铃型拱肋的阻力系数和涡脱频率
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| 关 键 词： | 串列钝体绕流 数值计算 非定常流 二阶投影法 钢管混凝土拱 斯特劳哈尔数 |
| 文章编号： | 0253-374X(2002)05-0604-05 |
| 修稿时间： | 2001年11月10 |
Numerical Simulation of Flows Around Two Bluff Bodies in Tandem Arrangements |
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| LOU Xiao-feng,CAO Feng-chan,LIN Zhi-xing.Numerical Simulation of Flows Around Two Bluff Bodies in Tandem Arrangements[J].Journal of Tongji University(Natural Science),2002,30(5):604-608. |
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| Authors: | LOU Xiao-feng CAO Feng-chan LIN Zhi-xing |
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| Abstract: | A second-order projection method is used for solving the N-S equations.Numerically we analyze the unsteady flow around two stationary circular cylinders in tandem arrangement with high Reynolds number.The computed mean drag coefficient and the Strouhal number agree well with the experiment.To apply this method to actual engineering problems,computations are also carried out to simulate the flow around two ribs of arch-bridge. |
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| Keywords: | unsteady flow second-order projection method circular cylinders in tandem arrangement rib of arc-bridge Strouhal number |
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