高雷诺数下有限长圆柱绕流阻力特性研究

doi:10.3901/JME.2015.22.176

机械工程学报 ›› 2015, Vol. 51 ›› Issue (22): 176-182.doi: 10.3901/JME.2015.22.176

扫码分享

高雷诺数下有限长圆柱绕流阻力特性研究

赵萌^1,2, 毛军^1,2, 郗艳红^1,2

1. 北京交通大学土木建筑工程学院北京 100044；
2. 北京交通大学轨道工程北京市重点实验室北京 100044

收稿日期:2014-11-20 修回日期:2015-06-24 出版日期:2015-11-15 发布日期:2015-11-15
通讯作者: 赵萌，女，1986年出生，博士研究生。主要研究方向为高速列车受电弓空气动力学。 E-mail：09115287@bjtu.edu.cn
作者简介:赵萌，女，1986年出生，博士研究生。主要研究方向为高速列车受电弓空气动力学。 E-mail：09115287@bjtu.edu.cn
基金资助:
国家自然科学基金(51078901，51308040)和“十一五”国家科技支撑计划(2009BACG12A03C)资助项目

Research on Drag Characteristic of Flow around Finite Circular Cylinder at High Reynolds Numbers

ZHAO Meng^1,2, MAO Jun^1,2, XI Yanhong^1,2

1. School of Civil Engineering and Architecture, Beijing Jiaotong University, Beijing 100044;
2. Beijing Key Laboratory of Track Engineering, Beijing Jiaotong University, Beijing, 100044

Received:2014-11-20 Revised:2015-06-24 Online:2015-11-15 Published:2015-11-15

摘要/Abstract

摘要： 针对不同长径比的有限长圆柱模型，采用大涡模拟及雷诺平均的方法，对高雷诺数下有限长圆柱绕流阻力特性进行数值模拟和分析，得到了圆柱阻力系数随长径比和雷诺数的变化规律，讨论端面效应对绕流阻力系数的影响。结果表明：在亚临界区内，相同雷诺数下阻力系数随长径比的增大而增大，呈线性变化规律，L/D的对阻力系数的影响明显大于Re对阻力系数的影响；在阻力危机区内，相同雷诺数下阻力系数随长径比的增大而增大，呈二次函数的变化规律，但各工况达到阻力系数“转折点”对应的雷诺数各不相同，基本呈现随雷诺数的增大向前推移的趋势，Re对阻力系数的影响明显大于L/D对阻力系数的影响；在阻力回升区，阻力系数回升的“转折点”随着雷诺数的逐渐增大而向后推移。在各分区内，端面效应对阻力系数的影响随雷诺数增大而更加明显，在高度方向上的最大影响区域约占圆柱总高度的16%。研究结果对有限长圆柱绕流特性的研究及应用具有重要意义和价值。

关键词: 长径比, 高雷诺数, 有限长圆柱, 阻力系数

Abstract: Large eddy simulation(LES) method and Reynolds average are applied to simulate drag characteristics at high Reynolds around finite circular cylinder, according to aspect ratio L/D. The Variation of drag coefficient with L/D and Reynolds number are taken. and the influence of the end face to the drag coefficient is also revealed. The results show that in the sub-critical region the drag coefficient has a linear change and increases with increase in L/D for the same Reynolds, additionally the influence of L/D to drag coefficient is large than the influence of Re; In the critical region the drag coefficient has a quadratic function change and increases with increase in L/D for the same Reynolds, and Re at turning point of drag coefficient under various conditions are different, additionally the influence of Re to drag coefficient is large than the influence of L/D; In the rise region the turning point of drag coefficient goes backwards with increase in Re. In each region the influence of the end face to the drag coefficient goes appreciably with increase in Re and the most effecting field is 16% in height of circular cylinder. Some meaningful references are provided for the further research on the characteristics of the flow around finite circular cylinder.

Key words: aspect ratio, drag coefficient, finite circular cylinder, high Reynolds number

赵萌, 毛军, 郗艳红. 高雷诺数下有限长圆柱绕流阻力特性研究[J]. 机械工程学报, 2015, 51(22): 176-182.

ZHAO Meng, MAO Jun, XI Yanhong. Research on Drag Characteristic of Flow around Finite Circular Cylinder at High Reynolds Numbers[J]. Journal of Mechanical Engineering, 2015, 51(22): 176-182.

参考文献

[1] FINNEMORE J E，FRANZINI J B，ALLAIRE P. 流体力学及其工程应用[D]. 北京：机械工业出版社，2006. FINNEMORE J E， FRANZINI J B， ALLAIRE P. Fluid mechanics with engineering applications[M]. Beijing：China Machine Press，2006.
[2] SADEH W Z，SAHARON D B，LEWIS R C，et al. Turbulence effect on crossflow around a circular cylinder at subcritical Reynolds numbers[R]. Washington D.C.：National Aeronautics and Space Administration, Scientific and Technical Information Branch，1982.
[3] RAMAMURTHY A S，LEE P M. Wall effects on flow past bluff bodies[J]. Journal of Sound and Vibration，1973，31(4)：443-451.
[4] ACHENBACH E. Distribution of local pressure and skin friction around a circular cylinder in cross-flow up to Re=5×106[J]. Journal of Fluid Mechanics，1968，34(4)：625-639.
[5] VAKIL A，GREEN S I. Drag and lift coefficients of inclined finite circular cylinders at moderate Reynolds numbers[J]. Computers and Fluids，2009，38(9)：1771-1781.
[6] GUO Xiaohui，LIN Jianzhong，NIE deming. New formula for drag coefficient of cylindrical particles[J]. Particuology，2011，9(2)：114-120.
[7] BAKER C. The flow around high speed trains[J]. Journal of Wind Engineering and Industrial Aerodynamics，2010，98(6)：277-298.
[8] BOCCIOLONE M，CHELI F，CORRADI R，et al. Crosswind action on rail vehicles：Wind tunnel experimental analyses[J]. Journal of Wind Engineering and Industrial Aerodynamics，2008，96(5)：584-610.
[9] 汪健生，赵云俭，朱强. 小尺度圆柱涡流发生器的传热与流动特性[J]. 机械工程学报，2015，51(8)：204-212.WANG Jiansheng，ZHAO Yunjian，ZHU Qiang. Heat transfer and flow characteristics of small scale circular cylinder vortex generator[J]. Journal of Mechanical Engineering，2015，51(8)：204-212.
[10] 丁林，张力，杨仲卿. 高雷诺数时分隔板对圆柱涡致振动的影响[J]. 机械工程学报，2013，49(14)：134-139.DING Lin，ZHANG Li，YANG Zhongqing. Effect of splitter plate on vortex-induced vibration of circular cylinder at high Reynolds number[J]. Journal of Mechanical Engineering，2013，49(14)：134-139.
[11] 王福军，张玲，黎耀军，等. 轴流式水泵非定常湍流数值模拟的若干关键问题[J]. 机械工程学报，2008，44(8)：73-77.WANG Fujun，ZHANG Ling，LI Yaojun，et al. Some key issues of unsteady turbulent numerical simulation in axial-flow pump[J]. Chinese Journal of Mechanical Engineering，2008，44(8)：73-77.
[12] 金文. 湍流结构及大涡模拟研究[J]. 能源与环境，2005(4)：11-14. JIN Wen. Research on the turbulence structure and LES method[J]. Energy and Environment，2005(4)：11-14.
[13] NISHIMUA H，TANIKE Y. Aerodynamic characteristics of fluctuating forces on a circular cylinder[J]. Journal of Wind Engineering and Industrial Aerodynamics，2001，89：713-723.
[14] 陶文铨. 数值传热学[M]. 西安：西安交通大学出版社，2001.TAO Wenquan. Numerical heat transfer[M]. Xi’an：Xi’an Jiaotong University Press，2001.
[15] 张兆顺，崔桂香，许春晓. 湍流大涡数值模拟的理论和应用[M]. 北京，清华大学出版社，2008.ZHANG Zhaoshun，CUI Guixiang，XU Chunxiao. The large eddy turbulence theory and application of numerical simulation[M]. Beijing：Tsinghua University Press，2008.
[16] ZDRAVKOVICH M M，BRAND V P，MATHEW G，et al. Flow past short circular cylinders with two free ends[J]. Journal of Fluid Mechanics，1989，203：557-575.

高雷诺数下有限长圆柱绕流阻力特性研究

Research on Drag Characteristic of Flow around Finite Circular Cylinder at High Reynolds Numbers

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 8

编辑推荐

Metrics

本文评价

[1]	李亚栋, 陶友瑞, 王崇帅, 段书用, 李长峰, 姬昭鑫. 短距离压电式喷射点胶卫星滴形成机理及抑制策略[J]. 机械工程学报, 2024, 60(19): 347-355.
[2]	王海全, 付源政, 高航, 王宣平. 磨粒流抛光粗糙度预测模型研究[J]. 机械工程学报, 2022, 58(15): 188-197.
[3]	梁志强, 马悦, 陈建军, 李玉, 马丹, 曹宇轩, 蔡荣宾, 郭海新, 王西彬. 横刃修磨高长径比微细钻削刀具的钻削性能研究[J]. 机械工程学报, 2021, 57(7): 244-252.
[4]	杨凡, 李刚炎, 香川利春. 气动固定节流孔音速流导的计算方法研究[J]. 机械工程学报, 2018, 54(16): 195-203.
[5]	雷诗毅, 郭亚军, 桂淼, 毕勤成. 横纹槽管内插扭带复合强化传热的试验研究^*[J]. 机械工程学报, 2016, 52(24): 142-146.
[6]	姜桂林, 管宁, 张承武, 刘志刚. 截面形状对疏水性微肋阵内减阻特性的影响^*[J]. 机械工程学报, 2016, 52(22): 153-160.
[7]	卢兰光;欧阳明高. 车用低压质子交换膜燃料电池电堆的半经验模型[J]. , 2007, 43(2): 110-114.
[8]	邹剑;陈进;董广明. 基于有限元模型单一开裂纹转子的振动分析与无损估计[J]. , 2004, 40(7): 29-33.