Article(id=1222925297918398600, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1222925278838513745, articleNumber=null, orderNo=null, doi=10.20040/j.cnki.1000-7709.2023.20220894, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1651420800000, receivedDateStr=2022-05-02, revisedDate=1651939200000, revisedDateStr=2022-05-08, acceptedDate=null, acceptedDateStr=null, onlineDate=1769497711876, onlineDateStr=2026-01-27, pubDate=1677254400000, pubDateStr=2023-02-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1769497711876, onlineIssueDateStr=2026-01-27, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1769497711876, creator=13701087609, updateTime=1769497711876, updator=13701087609, issue=Issue{id=1222925278838513745, tenantId=1146029695717560320, journalId=1205116964453384197, year='2023', volume='41', issue='2', pageStart='1', pageEnd='220', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1769497707328, creator=13701087609, updateTime=1769497707328, updator=13701087609, preIssue=null, nextIssue=null, ext=null, issueFiles=null}, startPage=141, endPage=144, ext={EN=ArticleExt(id=1222925298157473933, articleId=1222925297918398600, tenantId=1146029695717560320, journalId=1205116964453384197, language=EN, title=Characteristics of Annular Gap Velocity Distribution Under Pipeline Vehicle Moving Smoothly, columnId=1222925283779400191, journalTitle=Water Resources and Power, columnName=WATER CONSERVANCY AND HYDROPOWER ENGINEERING, runingTitle=null, highlight=null, articleAbstract=

When the pipeline truck moves smoothly, the velocity distribution characteristics of the water flow in the annular gap are related to the interaction between the pipeline truck and the water flow, which will also affect the motion characteristics of the pipeline truck and the hydraulic characteristics in the pipeline. This paper studied the overall and local distribution characteristics of the water flow velocity in the annular gap when the pipeline car moves smoothly by means of physical experiments and theoretical analysis. The relationship between the distribution characteristics of the water flow velocity in the annular gap of the pipeline car with different diameters and the transmission efficiency were compared. The results show that when the pipeline car moves smoothly, the velocity at the inlet section of the annulus is the largest, followed by the middle section of the car, and the velocity at the rear section of the car is the smallest; The flow velocity near the wall of the pipeline truck changes greatly along the way, and the flow velocity near the pipe wall changes less along the process; The distribution of the water flow velocity in the annular gap of the pipeline car with different diameters affects the transportation efficiency of the pipeline car. When the ratio of the water flow velocity in the annular gap to the water flow velocity in the pipeline is close to 1, the transportation efficiency of the pipeline car is the highest.

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管道车平稳运移时环隙内水流流速分布特性关系着管道车与水流相互作用,从而也会影响管道车的运动特性与管道内的水力特性。通过物理试验与理论分析的方法研究了管道车平稳运移时环隙内水流流速整体与局部分布特性,对比了不同直径的管道车环隙内水流流速分布特性与输送效率之间的关系。结果表明,管道车平稳运移时,环隙进口断面处的流速最大,其次为车中断面,车后断面处的流速最小;靠近管道车壁面处的流速沿程变化较大,且流速大小与管道车速度有关,靠近管壁处的流速沿程变化较小;不同直径的管道车环隙水流流速分布情况影响着管道车的输送效率,当环隙水流流速与管道内水流流速之比接近于1时,管道车的输送效率最大。

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李永业(1977-),男,博士、副教授、硕导,研究方向为水力学及河流动力学,E-mail:
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原源(1998-),男,硕士研究生,研究方向为水力学及河流动力学,E-mail:

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原源(1998-),男,硕士研究生,研究方向为水力学及河流动力学,E-mail:

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原源(1998-),男,硕士研究生,研究方向为水力学及河流动力学,E-mail:

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管道车平稳运移时的环隙流速分布特性
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原源 1 , 李永业 1 , 张乐元 2 , 陈润 1 , 赵一名 1 , 宋晓腾 1 , 鲁一凡 1
水电能源科学 | 水利水电工程 2023,41(2): 141-144
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水电能源科学 | 水利水电工程 2023, 41(2): 141-144
管道车平稳运移时的环隙流速分布特性
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原源1 , 李永业1 , 张乐元2, 陈润1, 赵一名1, 宋晓腾1, 鲁一凡1
作者信息
  • 1.太原理工大学水利科学与工程学院,山西 太原 030024
  • 2.运城市河湖务管理中心,山西 运城 044099
  • 原源(1998-),男,硕士研究生,研究方向为水力学及河流动力学,E-mail:

通讯作者:

李永业(1977-),男,博士、副教授、硕导,研究方向为水力学及河流动力学,E-mail:
Characteristics of Annular Gap Velocity Distribution Under Pipeline Vehicle Moving Smoothly
Yuan YUAN1 , Yong-ye LI1 , Le-yuan ZHANG2, Run CHEN1, Yi-ming ZHAO1, Xiao-teng SONG1, Yi-fan LU1
Affiliations
  • 1.College of Water Resources Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
  • 2.Yuncheng River and Lake Affairs Management Center, Yuncheng 044099, China
出版时间: 2023-02-25 doi: 10.20040/j.cnki.1000-7709.2023.20220894
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管道车平稳运移时环隙内水流流速分布特性关系着管道车与水流相互作用,从而也会影响管道车的运动特性与管道内的水力特性。通过物理试验与理论分析的方法研究了管道车平稳运移时环隙内水流流速整体与局部分布特性,对比了不同直径的管道车环隙内水流流速分布特性与输送效率之间的关系。结果表明,管道车平稳运移时,环隙进口断面处的流速最大,其次为车中断面,车后断面处的流速最小;靠近管道车壁面处的流速沿程变化较大,且流速大小与管道车速度有关,靠近管壁处的流速沿程变化较小;不同直径的管道车环隙水流流速分布情况影响着管道车的输送效率,当环隙水流流速与管道内水流流速之比接近于1时,管道车的输送效率最大。

水力输送  /  管道车  /  平稳运移  /  环隙流速  /  输送效率

When the pipeline truck moves smoothly, the velocity distribution characteristics of the water flow in the annular gap are related to the interaction between the pipeline truck and the water flow, which will also affect the motion characteristics of the pipeline truck and the hydraulic characteristics in the pipeline. This paper studied the overall and local distribution characteristics of the water flow velocity in the annular gap when the pipeline car moves smoothly by means of physical experiments and theoretical analysis. The relationship between the distribution characteristics of the water flow velocity in the annular gap of the pipeline car with different diameters and the transmission efficiency were compared. The results show that when the pipeline car moves smoothly, the velocity at the inlet section of the annulus is the largest, followed by the middle section of the car, and the velocity at the rear section of the car is the smallest; The flow velocity near the wall of the pipeline truck changes greatly along the way, and the flow velocity near the pipe wall changes less along the process; The distribution of the water flow velocity in the annular gap of the pipeline car with different diameters affects the transportation efficiency of the pipeline car. When the ratio of the water flow velocity in the annular gap to the water flow velocity in the pipeline is close to 1, the transportation efficiency of the pipeline car is the highest.

hydraulic conveying  /  pipeline car  /  smooth movement  /  annular gap velocity  /  conveying efficiency
原源, 李永业, 张乐元, 陈润, 赵一名, 宋晓腾, 鲁一凡. 管道车平稳运移时的环隙流速分布特性. 水电能源科学, 2023 , 41 (2) : 141 -144 . DOI: 10.20040/j.cnki.1000-7709.2023.20220894
Yuan YUAN, Yong-ye LI, Le-yuan ZHANG, Run CHEN, Yi-ming ZHAO, Xiao-teng SONG, Yi-fan LU. Characteristics of Annular Gap Velocity Distribution Under Pipeline Vehicle Moving Smoothly[J]. Water Resources and Power, 2023 , 41 (2) : 141 -144 . DOI: 10.20040/j.cnki.1000-7709.2023.20220894
  • 国家自然科学基金项目(51179116)
2023年第41卷第2期
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doi: 10.20040/j.cnki.1000-7709.2023.20220894
  • 接收时间:2022-05-02
  • 首发时间:2026-01-27
  • 出版时间:2023-02-25
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  • 收稿日期:2022-05-02
  • 修回日期:2022-05-08
基金
国家自然科学基金项目(51179116)
作者信息
    1.太原理工大学水利科学与工程学院,山西 太原 030024
    2.运城市河湖务管理中心,山西 运城 044099

通讯作者:

李永业(1977-),男,博士、副教授、硕导,研究方向为水力学及河流动力学,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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