不同雷诺数条件下静止管道车环状缝隙流场数值模拟

贾晓萌,孙西欢,李永业

振动与冲击 ›› 2021, Vol. 40 ›› Issue (3) : 10-18.

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振动与冲击 ›› 2021, Vol. 40 ›› Issue (3) : 10-18.
论文

不同雷诺数条件下静止管道车环状缝隙流场数值模拟

  • 贾晓萌,孙西欢,李永业
作者信息 +

Numerical simulation of annular gap flow field of static pipeline vehicle under different Reynolds numbers

  • JIA Xiaomeng, SUN Xihuan, LI Yongye
Author information +
文章历史 +

摘要

为了探究雷诺数对于静边界环状缝隙流场的影响,采用Fluent软件对雷诺数为115513、154018、192522三种工况下静止管道车环状缝隙流场进行了数值模拟,并通过物理试验进行验证,结果表明:同一雷诺数条件下,在环状缝隙入口处流速最大,之后沿管道车车身方向,环状缝隙流流速呈现先减小后增大的变化趋势,且环状缝隙流流速大于管道内水流的平均流速;各横断面环状缝隙流场均以管道中心呈同心圆分布,即半径相同的各点环状缝隙流速值大致相同,且从管道车壁面到管壁面方向环状缝隙流速呈现二次抛物线的变化形式;不同雷诺数条件下,管道内压强值沿程变化趋势大致相同,管道车上游位置处压强沿程呈现逐渐降低的变化趋势,环状缝隙内部和管道车下游位置处的压强值沿程呈现先升高后降低的变化趋势;随着雷诺数的增加,环状缝隙流速值与压强值和涡量值均呈现出逐渐增大的变化趋势;数值模拟结果同试验结果基本吻合,两者所得环状缝隙流速最大相对误差不超过7%,表明通过数值模拟来研究管道车环状缝隙流场的方法是可行的。

Abstract

In order to explore the influence of Reynolds number on flow field of annular gap with static boundary, the software Fluent was used to simulate annular gap flow fields of a static pipeline vehicle under Reynolds numbers of 115 513, 154 018 and 192 522, respectively, and the results were verified with tests. Results showed that under the same Reynolds number,  the flow velocity at the entrance of annular gap is the largest, and then along the direction of vehicle body, the velocity of annular gap flow firstly decreases and then increases, and the velocity of annular gap flow is larger than the average velocity of water flow in the pipe; the flow field of annular gap in each cross-section is concentric circle distribution with respect to the pipe center line, that is, the velocity value of annular gap at various points with the same radius is approximately the same, and flow velocities of annular gap along the direction from pipe vehicle wall to pipe wall present a form of quadratic parabola; under different Reynolds numbers, the variation trend of pressure value in pipe is roughly the same, the pressure at upstream position of the pipeline vehicle gradually decreases along the way, the pressure value inside annular gap and the downstream position of the pipeline vehicle increases firstly and then decreases along the way; with increase in Reynolds number, the velocity value, pressure value and vorticity value of annular gap all have a gradually increasing trend; numerical simulation results agree well with test ones, the maximum relative error between the two results is less than 7%, so the numerical simulation method is feasible.

关键词

雷诺数 / 环状缝隙流 / 管道车 / 数值模拟 / 试验验证

Key words

Reynolds number / annular gap flow / pipeline vehicle / numerical simulation / test verification

引用本文

导出引用
贾晓萌,孙西欢,李永业. 不同雷诺数条件下静止管道车环状缝隙流场数值模拟[J]. 振动与冲击, 2021, 40(3): 10-18
JIA Xiaomeng, SUN Xihuan, LI Yongye. Numerical simulation of annular gap flow field of static pipeline vehicle under different Reynolds numbers[J]. Journal of Vibration and Shock, 2021, 40(3): 10-18

参考文献

[1] 王锐,李飞,孙西欢,等.筒装农产品管道水力输送能耗的研究[J].江苏农业科学,2015,43(3):358-360.
WANG Rui,Li Fei,SUN Xihua,et al. Study on hydraulic energy consumption of tubular agricultural product pipeline[J].Jiangsu Agricultural Sciences,2015,43(3):358-360.
[2]  贾晓萌, 李永业, 孙西欢.筒装料管道车在不同流量下运动时水力特性研究[J].人民长江,2017,48(14):65-68.
JIA Xiaomeng,LI Yongye,SUN Xihuan.Research on hydraulic characteristics of pipe-conveying vehicle of charged bucket under different flow conditions[J].Yangtze River,2017,48(14):65-68.
[3] 张琪琦,孙西欢,李永业.圆柱体绕流环隙流场轴向流速及水力损失试验研究[J].长江科学院院报,2015,32(4):51-54.
ZHANG Qi-qi,SUN Xi-huan,LI Yong-ye.Experimental Research on Axial Flow Velocity and Hydraulic Energy Consumption in Annulus Flow Field around Cylinder[J].Journal of Yangtze River Scientific Research Institute,2015,32(4):51-54.
[4]Zhang P F,Wang  J J,Huang L X. Numerical simulation of flow around cylinder with an upstream rod in tandem at low Reynolds numbers[J].Applied Ocean Research,2006,28(3):183-192
[5]王晓聪, 桂洪斌, 刘洋.三维有限长圆柱绕流数值模拟[J].中国舰船研究,2018,13(2):27-34.
Wang Xiaocong,Gui Hongbin,Liu Yang.Numerical Simulation of three-dimensional flow around a circular cylinder of finite length[J].Chinese Journal of Ship Research,2018,13(2):27-34.
[6]张力, 及春宁, 邢国源.低雷诺数条件下并列三圆柱绕流的尾流模式和水动力系数研究[J].水动力学研究与进展(A辑),2017,32(3):263-272.
ZHANG Li,JI Chun-ning,XING Guo-yuan.Investigation on near-wake patterns and hydrodynamic coefficients of flow around three side-by-side cylinders with a low Reynolds number[J].Chinese Journal of Hydrodynamics,2017,32(3):263-272.
[7]Zhang Xuelan,Sun Xihuan,Li Yongye,et al. Numerical investigation of the concentric annulus flow around a cylindrical body with contrasted effecting factors[J.]Journal of Hydrodynamics,2015,27(2):273–285.
[8]井元昊,郭向红,孙西欢,等.管道车环状缝隙流水力特性[J].水电能源科学,2014,32(7):151-155.
JING Yuanhao,GUO Xianghong,SUN Xihuan,et al.Hydraulic Characteristics of Cyclical Slit Flow for Piped Carriage[J].Water Resources and Power,2014,32(7):151-155.
[9]张雪兰. 筒装料管道水力输送概化模型[D].太原:太原理工大学,2015.
Zhang Xuelan.Generalized model of tube-contained material hydraulic transportation in piped[D].Tai Yuan:Taiyuan University of Technology,2015.
[10]Winkel E S, Cutbirth J M,Ceccio S L,et al. Turbulence profiles from a smooth flat-plate turbulent boundary layer at high Reynolds number[J]. Experimental Thermal & Fluid Science,2012,40:140-149.
[11]Philipp S,Orlu RAMIS. Assessment of direct numerical simulation data of turbulent boundary layers[J]. Journal of Fluid Mechanics,,2010,659:11.
[12]李栋. 气固两相湍流边界层直接数值模拟研究[D].浙江:浙江大学,2016.
Li Dong.Direct numerical simulation of turbulent boundary layer[D].Zhejiang:Zhejiang University,2016.
[13]Taimoor A,Rakesh M. Computational fluid dynamics based optimal design of hydraulic capsule pipelines transporting cylindrical capsules[J].POWDER TECHNOL,2016,295:966-979.
[14]Mohamed F,Khalil S Z,Kassab I.G,Adam M.A.Samaha. Turbulent flow around single concentric long capsule in a pipe[J]. Applied Mathematical Modelling,2009,34(8):2000-2017.
[15]李永业, 孙西欢, 李飞,等.动边界同心环状缝隙流研究[J].农业机械学报,2012,43(3):30-234.
Li Yongye,Sun Xihuan,Li Fei ,et al.Cyclical Slit Flow of Concentricity under the Moving Boundary Condition[J].Transactions of the Chinese Society for Agricultural Machinery,2012,43(3):30-234.
[16]张雪兰,孙西欢,李永业.平直管段不同宽度动边界环隙流场特性[J].排灌机械工程学报,2013,31(04):352-357.
Zhang Xuelan,Sun Xihuan,Li Yongye.Characteristics of annulus moving boundary flow in straight pipe segments of different widths[J].Journal of Drainage and Irrigation Machinery Engineering,2013,31(4):352-357.
[17] 张春晋,孙西欢,李永业,等 .筒装料管道水力输送动边界环状缝隙流水力特性数值模拟[J].农业工程学报,2017,33(19):76-85.
Zhang Chunjin,Sun Xihuan,Li Yongye,et al.Numerical simulation of hydraulic characteristics of cyclical slit flow with moving boundary of tube-contained raw materials pipelines hydraulic transportation[J].Transactions of the Chinese Society of Agricultural Engineering,2017,33(19):76-85.
[18]张春晋,孙西欢,李永业,等.流固耦合作用对筒装料管道车水力输送内部流场特性的影响[J].农业工程学报,2018,34(18):299-307.
Zhang Chunjin,Sun Xihuan,Li Yongye,et al.Effect of fluid-structure interaction on internal flow field characteristics of tube-contained raw material pipeline hydraulic transportation[J].Transactions of the Chinese Society of Agricultural Engineering,2018,34(18):299-307.
[19]张春晋,孙西欢,李永业,张学琴.基于流固耦合的管道车振动运移水力特性数值模拟与试验[J].振动与冲击,2019,38(05):251-258.
Zhang Chunjin,Sun Xihuan,Li Yongye,et al.Numerical simulation and tests for vibration migration hydraulic characteristics of a piped carriage based on fluid- structure interaction[J].Journal of Vibration and Shock,2019,38(05):251-258.
[20] 何涛.流固耦合数值方法研究概述与浅析[J].振动与冲击,2018,37(4):184-190.
HE Tao.Numerical solution techniques for fluid-structure interaction simulations: A brief review and discussion[J].
Journal of Vibration and Shock,2018,37(4):184-190.
[21]Mohamed F. Khalil,Sadek Z. Kassab,Ihab G. Adam,Mohamed A. Samaha. Turbulent flow around single concentric long capsule in a pipe[J]. Applied Mathematical Modelling,2009,34(8).
[22]Taimoor Asim,Rakesh Mishra. Computational fluid dynamics based optimal design of hydraulic capsule pipelines transporting cylindrical capsules[J]. Powder Technology,2016,295.
[23]郑伟.不同导叶长度的管道车在不运动条件下形成的同心环状缝隙螺旋流水力特性研究[D].太原:太原理工大学,2015.
Zheng Wei.Study on concentric annular gap of spiral Flow Characteristics of different Guide vane length of the piped carriage formed in the condiyion of not moving[D].Taiyuan:Taiyuan University of Technology,2015.
[24]吴剑,孙西欢,李永业.不同直径圆柱体同心环状缝隙流轴向速度特性研究[J].中国农村水利水电,2017, (12):185-188.
WU Jian, SUN Xi-huan, LI Yong-ye.Research on the Axial Velocity Characteristics of Concentric Annular Slit Flow in a Cylinder with Different Diameters[J].China Rural Water and Hydropower,2017, (12):185-188.
[25]鲁一凡,马成功,孙西欢,等.不同环状缝隙宽度下管道车车后断面轴向流速特性研究[J].水电能源科学,2018,36(7):167-170.
LU Yi-fan,MA Cheng-gong,SUN Xi-huan,et al.Axial Velocity Characteristics of Cross Section Behind Piped Carriage with Different Width of Annular Gap[J].Water Resources and Power,2018,36(7):167-170.

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