Article(id=1223190873257660915, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223190866320278179, articleNumber=null, orderNo=null, doi=10.20040/j.cnki.1000-7709.2023.20221889, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1662825600000, receivedDateStr=2022-09-11, revisedDate=1666108800000, revisedDateStr=2022-10-19, acceptedDate=null, acceptedDateStr=null, onlineDate=1769561029972, onlineDateStr=2026-01-28, pubDate=1695571200000, pubDateStr=2023-09-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1769561029972, onlineIssueDateStr=2026-01-28, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1769561029972, creator=13701087609, updateTime=1769561029972, updator=13701087609, issue=Issue{id=1223190866320278179, tenantId=1146029695717560320, journalId=1205116964453384197, year='2023', volume='41', issue='9', 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=1769561028318, creator=13701087609, updateTime=1769562015483, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1223195006870082478, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223190866320278179, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1223195006870082479, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223190866320278179, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=197, endPage=201, ext={EN=ArticleExt(id=1223190875237372450, articleId=1223190873257660915, tenantId=1146029695717560320, journalId=1205116964453384197, language=EN, title=Numerical 2016,177:141-161. Simulation of Flow Through Sluice Based on SPH Method, columnId=1222925284869922957, journalTitle=Water Resources and Power, columnName=ELECTROMECHANICS AND CONTROL ENGINEERING, runingTitle=null, highlight=null, articleAbstract=

Aiming at the problem of sluice flow, based on the smooth particle hydrodynamics method (SPH), the boundary treatment method was improved, and the main parameters of repulsion force were re-calibrated, which can avoid non-physical oscillation with n1=4 and n2=2. At the same time, the comparison and selection of water replenishment modes were carried out, and it was clear that the bottom hole water replenishment mode with 3 m elevation difference in the optimal water replenishment mode can reduce the net outflow of particles from the upstream water body. On this basis, the numerical model of the flow through the gate impacting the stilling pool downstream was established, and the process of the flow from the sluice to the stilling pool was simulated. The results show that at the initial time, the maximum pressure at the bottom of the upstream water is 127.4 kPa; At the 7th second, the average velocity at the right end of the stilling pool is 7.07 m/s, at the 19th second, the average velocity at the right end of the stilling pool decreases to 1.4 m/s. Thus, the SPH method can accurately simulate the changes of flow velocity, pressure and flow pattern in the discharge process.

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针对过闸水流问题,基于光滑粒子流体动力学方法(SPH),对边界处理方法进行了改进,重新率定了排斥力主要参数,当n1=4、n2=2时,可避免非物理振荡现象的出现;同时,对补水模式进行了比选研究,明确了在最优补水模式为3 m高程差的底孔补水模式,可减少上游水体粒子的净流出。在此基础上,建立了过闸水流冲击下游消力池的数值模型,模拟了过闸水流流出水闸至跃出消力池的过程。结果表明,初始时刻上游水域底部最大压强为127.4 kPa,第7 s时消力池右端断面平均流速为7.07 m/s,19 s时消力池右端断面平均流速减小到1.4 m/s。可见SPH方法能准确模拟出泄流过程流速压强及流态变化情况。

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张建伟(1979-),男,博士、教授、博导,研究方向为水工结构工程,E-mail:

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张建伟(1979-),男,博士、教授、博导,研究方向为水工结构工程,E-mail:

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张建伟(1979-),男,博士、教授、博导,研究方向为水工结构工程,E-mail:

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基于SPH方法的过闸水流数值模拟
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张建伟 1 , 张福红 1 , 陈海舟 2 , 主攀 1
水电能源科学 | 机电与控制工程 2023,41(9): 197-201
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水电能源科学 | 机电与控制工程 2023, 41(9): 197-201
基于SPH方法的过闸水流数值模拟
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张建伟1 , 张福红1, 陈海舟2, 主攀1
作者信息
  • 1.华北水利水电大学水利学院,河南 郑州 450046
  • 2.上海道盾科技股份有限公司,上海 200131
  • 张建伟(1979-),男,博士、教授、博导,研究方向为水工结构工程,E-mail:

Numerical 2016,177:141-161. Simulation of Flow Through Sluice Based on SPH Method
Jian-wei ZHANG1 , Fu-hong ZHANG1, Hai-zhou CHEN2, Pan ZHU1
Affiliations
  • 1.School of Water Resources, North China University of Water Resources and Electric Power, Zhengzhou 450046, China
  • 2.Shanghai Daodun Technology Co., Ltd., Shanghai 200131, China
出版时间: 2023-09-25 doi: 10.20040/j.cnki.1000-7709.2023.20221889
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针对过闸水流问题,基于光滑粒子流体动力学方法(SPH),对边界处理方法进行了改进,重新率定了排斥力主要参数,当n1=4、n2=2时,可避免非物理振荡现象的出现;同时,对补水模式进行了比选研究,明确了在最优补水模式为3 m高程差的底孔补水模式,可减少上游水体粒子的净流出。在此基础上,建立了过闸水流冲击下游消力池的数值模型,模拟了过闸水流流出水闸至跃出消力池的过程。结果表明,初始时刻上游水域底部最大压强为127.4 kPa,第7 s时消力池右端断面平均流速为7.07 m/s,19 s时消力池右端断面平均流速减小到1.4 m/s。可见SPH方法能准确模拟出泄流过程流速压强及流态变化情况。

光滑粒子流体动力学方法  /  边界处理  /  过闸水流  /  数值模拟

Aiming at the problem of sluice flow, based on the smooth particle hydrodynamics method (SPH), the boundary treatment method was improved, and the main parameters of repulsion force were re-calibrated, which can avoid non-physical oscillation with n1=4 and n2=2. At the same time, the comparison and selection of water replenishment modes were carried out, and it was clear that the bottom hole water replenishment mode with 3 m elevation difference in the optimal water replenishment mode can reduce the net outflow of particles from the upstream water body. On this basis, the numerical model of the flow through the gate impacting the stilling pool downstream was established, and the process of the flow from the sluice to the stilling pool was simulated. The results show that at the initial time, the maximum pressure at the bottom of the upstream water is 127.4 kPa; At the 7th second, the average velocity at the right end of the stilling pool is 7.07 m/s, at the 19th second, the average velocity at the right end of the stilling pool decreases to 1.4 m/s. Thus, the SPH method can accurately simulate the changes of flow velocity, pressure and flow pattern in the discharge process.

smooth particle hydrodynamics  /  boundary treatment  /  sluice flow  /  numerical simulation
张建伟, 张福红, 陈海舟, 主攀. 基于SPH方法的过闸水流数值模拟. 水电能源科学, 2023 , 41 (9) : 197 -201 . DOI: 10.20040/j.cnki.1000-7709.2023.20221889
Jian-wei ZHANG, Fu-hong ZHANG, Hai-zhou CHEN, Pan ZHU. Numerical 2016,177:141-161. Simulation of Flow Through Sluice Based on SPH Method[J]. Water Resources and Power, 2023 , 41 (9) : 197 -201 . DOI: 10.20040/j.cnki.1000-7709.2023.20221889
  • 国家自然科学基金项目(51679091)
2023年第41卷第9期
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doi: 10.20040/j.cnki.1000-7709.2023.20221889
  • 接收时间:2022-09-11
  • 首发时间:2026-01-28
  • 出版时间:2023-09-25
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  • 收稿日期:2022-09-11
  • 修回日期:2022-10-19
基金
国家自然科学基金项目(51679091)
作者信息
    1.华北水利水电大学水利学院,河南 郑州 450046
    2.上海道盾科技股份有限公司,上海 200131
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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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