Article(id=1222940990600631234, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1222940980886626474, articleNumber=null, orderNo=null, doi=10.20040/j.cnki.1000-7709.2023.20230044, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1673193600000, receivedDateStr=2023-01-09, revisedDate=1678204800000, revisedDateStr=2023-03-08, acceptedDate=null, acceptedDateStr=null, onlineDate=1769501453304, onlineDateStr=2026-01-27, pubDate=1700841600000, pubDateStr=2023-11-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1769501453304, onlineIssueDateStr=2026-01-27, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1769501453304, creator=13041195026, updateTime=1769501453304, updator=13041195026, issue=Issue{id=1222940980886626474, tenantId=1146029695717560320, journalId=1205116964453384197, year='2023', volume='41', issue='11', pageStart='1', pageEnd='226', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1769501450987, creator=13041195026, updateTime=1769501450987, updator=13041195026, preIssue=null, nextIssue=null, ext=null, issueFiles=null}, startPage=91, endPage=94, ext={EN=ArticleExt(id=1222940991343022093, articleId=1222940990600631234, tenantId=1146029695717560320, journalId=1205116964453384197, language=EN, title=Numerical Simulation of Annulus Flow Field of a Pipeline Truck Under Different Loads when Starting Horizontal Bend, columnId=1222925283779400191, journalTitle=Water Resources and Power, columnName=WATER CONSERVANCY AND HYDROPOWER ENGINEERING, runingTitle=null, highlight=null, articleAbstract=

In order to study the distribution of the annular gap flow field during the bend start of the pipeline vehicle under different loading conditions. Numerical simulation combined with physical model test verification was used to study the annular gap flow field during the horizontal bend start of duct trucks with different loads. The results show that the increase of load does not change the overall distribution of the gap flow field velocity, but only changes the magnitude of the gap flow field velocity; Under different loading conditions, the axial flow velocity of the gap flow field of the pipe vehicle in the horizontal bend has the law of increasing and then decreasing from the inner wall of the pipe to the outer wall of the pipe vehicle. The circumferential flow velocity is more uniformly distributed at the section of the pipe vehicle gap inflow port and the section in the vehicle, but the opposite distribution of flow velocity on both sides of the sealing cover appears at the section of the gap flow outlet. The radial flow velocity is more uniformly distributed as far away from the support body and the seal cover, and the flow velocity increases significantly at the support body in the slit flow outlet section of the pipeline vehicle. This study explains the reasons for the formation of annular gap flow field distribution law and obtains the flow velocity distribution law of the gap flow field when the pipe vehicle is started at the bend with different loads. While improving and enriching the theory of annular gap flow, it provides theoretical basis for the application of hydraulic conveying in cartridge loading pipeline.

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为研究不同荷载条件下管道车在弯管启动时环隙流场的分布,采用数值模拟结合物理模型试验验证的方法研究不同荷载管道车水平弯管启动时环隙流场。结果表明,荷载的增加不会改变缝隙流场流速的整体分布规律,仅仅改变缝隙流场流速数值的大小;不同荷载条件下,水平弯管内管道车缝隙流场轴向流速从管道内壁到管道车外壁有先增大后减小的规律。周向流速在管道车缝隙流入口断面处和车中断面处分布较为均匀,但在缝隙流出口断面处出现密封盖两侧流速相反分布。径向流速越远离支撑体和密封盖分布越均匀,且在管道车缝隙流出口断面支撑体处出现流速明显增大现象。该研究解释了环状缝隙流场分布规律形成原因,获得了不同荷载管道车在弯管处启动时缝隙流场的流速分布规律。在完善丰富环状缝隙流理论的同时,为筒装料管道水力输送的应用提供了理论依据。

, correspAuthors=null, authorNote=null, correspAuthorsNote=
孙西欢(1960-),男,教授、博导,研究方向为工业水力学,E-mail:
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王成(1997-),男,硕士研究生,研究方向为流体力学与流体机械,E-mail:

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王成(1997-),男,硕士研究生,研究方向为流体力学与流体机械,E-mail:

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王成(1997-),男,硕士研究生,研究方向为流体力学与流体机械,E-mail:

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不同荷载管道车弯管启动时环隙流场数值模拟
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王成 , 孙西欢 , 李永业
水电能源科学 | 水利水电工程 2023,41(11): 91-94
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水电能源科学 | 水利水电工程 2023, 41(11): 91-94
不同荷载管道车弯管启动时环隙流场数值模拟
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王成 , 孙西欢 , 李永业
作者信息
  • 太原理工大学水利科学与工程学院,山西 太原 030024
  • 王成(1997-),男,硕士研究生,研究方向为流体力学与流体机械,E-mail:

通讯作者:

孙西欢(1960-),男,教授、博导,研究方向为工业水力学,E-mail:
Numerical Simulation of Annulus Flow Field of a Pipeline Truck Under Different Loads when Starting Horizontal Bend
Cheng WANG , Xi-huan SUN , Yong-ye LI
Affiliations
  • College of Hydro Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
出版时间: 2023-11-25 doi: 10.20040/j.cnki.1000-7709.2023.20230044
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为研究不同荷载条件下管道车在弯管启动时环隙流场的分布,采用数值模拟结合物理模型试验验证的方法研究不同荷载管道车水平弯管启动时环隙流场。结果表明,荷载的增加不会改变缝隙流场流速的整体分布规律,仅仅改变缝隙流场流速数值的大小;不同荷载条件下,水平弯管内管道车缝隙流场轴向流速从管道内壁到管道车外壁有先增大后减小的规律。周向流速在管道车缝隙流入口断面处和车中断面处分布较为均匀,但在缝隙流出口断面处出现密封盖两侧流速相反分布。径向流速越远离支撑体和密封盖分布越均匀,且在管道车缝隙流出口断面支撑体处出现流速明显增大现象。该研究解释了环状缝隙流场分布规律形成原因,获得了不同荷载管道车在弯管处启动时缝隙流场的流速分布规律。在完善丰富环状缝隙流理论的同时,为筒装料管道水力输送的应用提供了理论依据。

管道车  /  筒装料  /  环隙流场  /  数值模拟

In order to study the distribution of the annular gap flow field during the bend start of the pipeline vehicle under different loading conditions. Numerical simulation combined with physical model test verification was used to study the annular gap flow field during the horizontal bend start of duct trucks with different loads. The results show that the increase of load does not change the overall distribution of the gap flow field velocity, but only changes the magnitude of the gap flow field velocity; Under different loading conditions, the axial flow velocity of the gap flow field of the pipe vehicle in the horizontal bend has the law of increasing and then decreasing from the inner wall of the pipe to the outer wall of the pipe vehicle. The circumferential flow velocity is more uniformly distributed at the section of the pipe vehicle gap inflow port and the section in the vehicle, but the opposite distribution of flow velocity on both sides of the sealing cover appears at the section of the gap flow outlet. The radial flow velocity is more uniformly distributed as far away from the support body and the seal cover, and the flow velocity increases significantly at the support body in the slit flow outlet section of the pipeline vehicle. This study explains the reasons for the formation of annular gap flow field distribution law and obtains the flow velocity distribution law of the gap flow field when the pipe vehicle is started at the bend with different loads. While improving and enriching the theory of annular gap flow, it provides theoretical basis for the application of hydraulic conveying in cartridge loading pipeline.

pipeline vehicle  /  tube-contained raw material  /  ring gap flow field  /  numerical simulation
王成, 孙西欢, 李永业. 不同荷载管道车弯管启动时环隙流场数值模拟. 水电能源科学, 2023 , 41 (11) : 91 -94 . DOI: 10.20040/j.cnki.1000-7709.2023.20230044
Cheng WANG, Xi-huan SUN, Yong-ye LI. Numerical Simulation of Annulus Flow Field of a Pipeline Truck Under Different Loads when Starting Horizontal Bend[J]. Water Resources and Power, 2023 , 41 (11) : 91 -94 . DOI: 10.20040/j.cnki.1000-7709.2023.20230044
  • 国家自然科学基金项目(51179116)
2023年第41卷第11期
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doi: 10.20040/j.cnki.1000-7709.2023.20230044
  • 接收时间:2023-01-09
  • 首发时间:2026-01-27
  • 出版时间:2023-11-25
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  • 收稿日期:2023-01-09
  • 修回日期:2023-03-08
基金
国家自然科学基金项目(51179116)
作者信息
    太原理工大学水利科学与工程学院,山西 太原 030024

通讯作者:

孙西欢(1960-),男,教授、博导,研究方向为工业水力学,E-mail:
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2种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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