近年来，传统运输方式存在交通堵塞、能源危机与环境污染等问题,已严重制约经济社会与生态环境的可持续发展。筒装料管道水力输送是一种集节能和环保于一体的运输方式，能够克服传统运输方式的不足。为分析管道车在平直管段振动运移水力特性，对管道流体域与管道车固体域进行流固耦合求解，并将模拟值与试验值对比。结果表明：管道车瞬时平动速度与瞬时转动角速度呈波动变化，可将其运动视为振动运移;导流条安放角增加引起管道车平动速度与转动角速度增大;环状缝隙流与管道流体掺混引起管道车下游压强先降低后升高;管道车振动运移时流速分布一致，而压强分布呈现降低趋势;导流条安放角增加使得平均压降系数呈先减小后增大，当安放角为24°，平均压降系数最小。该研究将为筒装料管道水力输送实际应用提供理论基础。
Abstract
In recent years, the problems of traffic congestion, energy crisis, and environmental pollution in the traditional transport modes have severely restricted the sustainable development of both economics and ecological environmental.The tube-contained raw material pipeline hydraulic transportation is a transport method with both energy saving and environmental protection, which overcomes the shortcomings of traditional transport modes.In order to analyze the hydraulic characteristics of vibrational transport of a piped carriage within a pipeline, the fluid-solid coupling solution between fluid domain of the flow field and the solid domain of the piped carriage within the pipeline was given, and simulated results were compared with experimental results.The results show that the instantaneous translational speed and instantaneous rotational angular speed of the piped carriage are in fluctuating state, and the motion of the piped carriage is regarded as vibrational transport.The increase in the placement angle of the guide vane causes both the translational speed and the rotational angular speed of the piped carriage to increase.The annular gap flow and the pipe fluid mixed with each other, causes the pressure at the downstream flow field of the piped carriage to first decrease and then increase.The velocity distributions of vibrational transport of the piped carriage are unified, while the pressure distributions shows a descending trend.The increase in the placement angle of the guide vane causes the average pressure drop coefficient to first decrease and then increase, and when the placement angle is set to 24°, the average pressure drop coefficient reaches the minimum.This paper provides a theoretical basis for practical application of the tube-contained raw material pipeline hydraulic transportation.
关键词
流固耦合 /
管道车 /
水力特性 /
导流条 /
振动运移
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Key words
fluid-structure interaction /
piped carriage /
hydraulic characteristics /
guide vane /
vibrational transport
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参考文献
［1］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.
［2］孙西欢，李永业，阎庆绂.筒装料管道水力输送管道车起动条件的试验研究［C］//第二十届全国水动力学研讨会.北京：海洋出版社，2007.
［3］李永业，孙西欢，延耀兴.管道车不同荷重时筒装料管道水力输送特性［J］.农业机械学报，2008，39(12)：92-96.
LI Yongye, SUN Xihuan, YAN Yaoxing.Hydraulic characteristics of tube-contained raw material hydraulic transportation under different loads on the piped carriage［J］.Transactions of the Chinese Society for Agricultural Machinery, 2008, 39(12): 92-96.
［4］FUJIWARA Y，TTMITA Y，SATOU H，et al.Characteristic of hydraulic capsule transport［J］.JSME International Journal, 1994, 37(1): 89-95.
［5］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.
［6］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.
［7］GARNER R G，RAITHBY G D.Laminar flow between a circular tube and a cylindrical eccentric capsule［J］.Canadian Journal of Chemical Engineering, 1978, 56(2): 176-180.
［8］SUB I，CHADDOCK J B.Drag calculations for vehicles in very long tubes from turbulent flow theory［J］.Journal of Fluids Engineering, 1981, 103(2): 361-366.
［9］KHALIL M F，KASSAB S Z，ADAM I G, et al.Turbulent flow around single concentric long capsule in a pipe［J］.Applied Mathematical Modelling, 2010, 34(8): 2000-2017.
［10］ASIM T，MISHRA R.Computational fluid dynamics based optimal design of hydraulic capsule pipelines transporting cylindrical capsules［J］.Powder Technology, 2016, 295(7): 180-201.
［11］张春晋，孙西欢，李永业，等.螺旋流起旋器内部流场水力特性数值模拟与验证［J］.农业工程学报，2018，34(1)：53-62.
ZHANG Chunjin, SUN Xihuan, LI Yongye, et al.Numerical simulation and verification of hydraulic characteristics of internal flow field in spiral flow generator［J］.Transactions of the Chinese Society of Agricultural Engineering, 2018, 34(1): 53-62.
［12］张春晋，孙西欢，李永业，等.基于数值模拟的小浪底龙抬头式泄洪洞防洪安全分析［J］.水利水电科技进展，2019，39(6)：68-74.
ZHANG Chunjin, SUN Xihuan, LI Yongye, et al.Flood control safety analysis of Xiaolangdi dam ogee spillway tunnel based on numerical simulation［J］.Advances in Science and Technology of Water Resources, 2019, 39(6): 68-74.
［13］张春晋，孙西欢，李永业，等.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(5)：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(5): 251-258.
［14］张春晋，孙西欢，李永业，等.基于流固耦合的管道双车振动运移水力特性研究［J］.振动与冲击，2020，39(3)：161-167.
ZHANG Chunjin, SUN Xihuan, LI Yongye, et al.Hydraulic characteristics of a piped double-carriage’s vibrational transport based on fluid-structure interaction［J］.Journal of Vibration and Shock, 2020, 39(3): 161-167.
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