Article(id=1223196804368421355, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223196803663778281, articleNumber=null, orderNo=null, doi=10.20040/j.cnki.1000-7709.2023.20221977, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1661011200000, receivedDateStr=2022-08-21, revisedDate=1664899200000, revisedDateStr=2022-10-05, acceptedDate=null, acceptedDateStr=null, onlineDate=1769562444058, onlineDateStr=2026-01-28, pubDate=1692892800000, pubDateStr=2023-08-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1769562444058, onlineIssueDateStr=2026-01-28, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1769562444058, creator=13701087609, updateTime=1769562444058, updator=13701087609, issue=Issue{id=1223196803663778281, tenantId=1146029695717560320, journalId=1205116964453384197, year='2023', volume='41', issue='8', pageStart='1', pageEnd='222', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1769562443888, creator=13701087609, updateTime=1769563793740, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1223202465391166440, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223196803663778281, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1223202465391166441, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223196803663778281, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=48, endPage=51, ext={EN=ArticleExt(id=1223196804628468205, articleId=1223196804368421355, tenantId=1146029695717560320, journalId=1205116964453384197, language=EN, title=Application of Sediment Catastrophe Theory in Fine-grained Sediment Transport Rate, columnId=1222925279849341011, journalTitle=Water Resources and Power, columnName=HYDROLOGY, WATER RESOURCES AND ENVIRONMENT, runingTitle=null, highlight=null, articleAbstract=

The nonlinear equation was established for the incipient motion of sediment under constant flow, including Reynolds number, Hiltz number and sediment erosion intensity. Based on cusp catastrophe theory, this experimental process focused on the main factors affecting incipient motion of sediment and bottom riverbed scouring, and considerd different flow intensity conditions. The Reynolds number of sand particles from other experiments was used in the nonlinear equation of this study to verify the influence of Reynolds number. The theoretical value calculated by this formula has a strong consistency with the test value, after comparing the results and data. Therefore, this nonlinear equation can basically meet the requirements for predicting the scouring intensity of fine sediment.

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基于尖点突变理论,针对影响泥沙起动、底床冲刷的主要因素,在不同水流强度下,建立了恒定流下泥沙起动模式,以及沙粒雷诺数、希尔兹数与泥沙冲刷强度的非线性方程,进行了相应的物理模型试验,并将已有试验得到的沙粒雷诺数代入非线性方程,探讨了沙粒雷诺数的大小对非线性方程的影响,将所提公式的计算结果与已有资料进行对比,发现该理论公式的计算值与试验值具有较好的一致性,能基本满足对细颗粒泥沙冲刷强度的预测需求。

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拾兵(1961-),男,博士、教授、博导,研究方向为水力学及河流动力学,E-mail:
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马俊峰(1998-),男,硕士研究生,研究方向为岸滩防护,E-mail:

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马俊峰(1998-),男,硕士研究生,研究方向为岸滩防护,E-mail:

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泥沙突变理论在细颗粒泥沙输沙率中的应用
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马俊峰 , 拾兵 , 柏涛 , 陈柏文 , 王俊杰
水电能源科学 | 水文水资源与环境 2023,41(8): 48-51
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水电能源科学 | 水文水资源与环境 2023, 41(8): 48-51
泥沙突变理论在细颗粒泥沙输沙率中的应用
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马俊峰 , 拾兵 , 柏涛, 陈柏文, 王俊杰
作者信息
  • 中国海洋大学工程学院,山东 青岛 266100
  • 马俊峰(1998-),男,硕士研究生,研究方向为岸滩防护,E-mail:

通讯作者:

拾兵(1961-),男,博士、教授、博导,研究方向为水力学及河流动力学,E-mail:
Application of Sediment Catastrophe Theory in Fine-grained Sediment Transport Rate
Jun-feng MA , Bing SHI , Tao BAI, Bai-wen CHEN, Jun-jie WANG
Affiliations
  • College of Civil Engineering, Ocean University of China, Qingdao 266100, China
出版时间: 2023-08-25 doi: 10.20040/j.cnki.1000-7709.2023.20221977
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基于尖点突变理论,针对影响泥沙起动、底床冲刷的主要因素,在不同水流强度下,建立了恒定流下泥沙起动模式,以及沙粒雷诺数、希尔兹数与泥沙冲刷强度的非线性方程,进行了相应的物理模型试验,并将已有试验得到的沙粒雷诺数代入非线性方程,探讨了沙粒雷诺数的大小对非线性方程的影响,将所提公式的计算结果与已有资料进行对比,发现该理论公式的计算值与试验值具有较好的一致性,能基本满足对细颗粒泥沙冲刷强度的预测需求。

尖点突变理论  /  泥沙起动模式  /  冲刷  /  非线性

The nonlinear equation was established for the incipient motion of sediment under constant flow, including Reynolds number, Hiltz number and sediment erosion intensity. Based on cusp catastrophe theory, this experimental process focused on the main factors affecting incipient motion of sediment and bottom riverbed scouring, and considerd different flow intensity conditions. The Reynolds number of sand particles from other experiments was used in the nonlinear equation of this study to verify the influence of Reynolds number. The theoretical value calculated by this formula has a strong consistency with the test value, after comparing the results and data. Therefore, this nonlinear equation can basically meet the requirements for predicting the scouring intensity of fine sediment.

cusp catastrophe theory  /  sediment initiation mode  /  sediment scour  /  nonlinearity
马俊峰, 拾兵, 柏涛, 陈柏文, 王俊杰. 泥沙突变理论在细颗粒泥沙输沙率中的应用. 水电能源科学, 2023 , 41 (8) : 48 -51 . DOI: 10.20040/j.cnki.1000-7709.2023.20221977
Jun-feng MA, Bing SHI, Tao BAI, Bai-wen CHEN, Jun-jie WANG. Application of Sediment Catastrophe Theory in Fine-grained Sediment Transport Rate[J]. Water Resources and Power, 2023 , 41 (8) : 48 -51 . DOI: 10.20040/j.cnki.1000-7709.2023.20221977
  • 国家自然科学基金项目(U2006227)
  • 山东省政府联合基金资助项目(U1906234)
2023年第41卷第8期
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doi: 10.20040/j.cnki.1000-7709.2023.20221977
  • 接收时间:2022-08-21
  • 首发时间:2026-01-28
  • 出版时间:2023-08-25
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  • 收稿日期:2022-08-21
  • 修回日期:2022-10-05
基金
国家自然科学基金项目(U2006227)
山东省政府联合基金资助项目(U1906234)
作者信息
    中国海洋大学工程学院,山东 青岛 266100

通讯作者:

拾兵(1961-),男,博士、教授、博导,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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