Article(id=1223190873123443186, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1223190866320278179, articleNumber=null, orderNo=null, doi=10.20040/j.cnki.1000-7709.2023.20222122, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1665590400000, receivedDateStr=2022-10-13, revisedDate=1669737600000, revisedDateStr=2022-11-30, acceptedDate=null, acceptedDateStr=null, onlineDate=1769561029939, onlineDateStr=2026-01-28, pubDate=1695571200000, pubDateStr=2023-09-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1769561029939, onlineIssueDateStr=2026-01-28, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1769561029939, creator=13701087609, updateTime=1769561029939, 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=32, endPage=35, ext={EN=ArticleExt(id=1223190875237372451, articleId=1223190873123443186, tenantId=1146029695717560320, journalId=1205116964453384197, language=EN, title=Comparison of Structured and Unstructured Finite Difference Simulation of Groundwater Flow, columnId=1222925279849341011, journalTitle=Water Resources and Power, columnName=HYDROLOGY, WATER RESOURCES AND ENVIRONMENT, runingTitle=null, highlight=null, articleAbstract=

The selection of a suitable, efficient and accurate numerical model for groundwater flow is an important basis for numerical simulation work. The analytical solution of water level of seepage calculations of fully penetrating well in a phreatic aquifer was compared with the numerical solution of water level of structured conventional model, structured encrypted model and two unstructured encrypted models to analyze the degree of fit and error. The results show that the accuracy of the numerical simulation of all four models is quite good, and the average absolute error is less than 0.1, R2 is greater than 0.98. Compared with the structured traditional model, the accuracy of the structured encryption model is the best, the unstructured 4-level encryption model is the second and the 3-level encryption model is the worst; The accuracy of the unstructured four-level encryption model is slightly worse than that of the structured encryption model, but the number of mesh is reduced by 90%. It is a highly applicable, efficient and accurate numerical model for groundwater flow, which improves the computational efficiency and makes up for the poor applicability of multi-point encryption of the structured encryption model.

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选取合适、高效、准确的地下水流数值模型是进行数值模拟的重要基础。利用一个完整潜水井渗流算例的水位解析解和结构化传统模型、结构化加密模型、两种非结构化加密模型的水位数值解进行比较,对其拟合程度及误差进行分析。结果表明,4种模型数值模拟的准确度均较好,平均绝对误差均小于0.1,R2均大于0.98;相较于结构化传统模型,结构化加密模型准确度最好,非结构化四级加密模型次之,非结构化三级加密模型最差;非结构化四级加密模型模拟准确度提升虽稍逊于结构化加密模型,但使用网格数量减少了90%,计算效率提升,并弥补了结构化加密模型多点加密适用性差的缺点,是一种适用性强、高效、准确的地下水流数值模型。

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张永祥(1962-),男,博士、教授、博导,研究方向为水资源与污染控制模拟技术,E-mail:
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丁文华(1997-),男,硕士研究生,研究方向为地下水流数值模拟,E-mail:

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丁文华(1997-),男,硕士研究生,研究方向为地下水流数值模拟,E-mail:

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丁文华(1997-),男,硕士研究生,研究方向为地下水流数值模拟,E-mail:

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地下水流结构化与非结构化有限差分法模拟比较
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丁文华 , 张永祥 , 郭彤 , 贾瑞涛
水电能源科学 | 水文水资源与环境 2023,41(9): 32-35
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水电能源科学 | 水文水资源与环境 2023, 41(9): 32-35
地下水流结构化与非结构化有限差分法模拟比较
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丁文华 , 张永祥 , 郭彤, 贾瑞涛
作者信息
  • 北京工业大学城市建设学部,北京 100124
  • 丁文华(1997-),男,硕士研究生,研究方向为地下水流数值模拟,E-mail:

通讯作者:

张永祥(1962-),男,博士、教授、博导,研究方向为水资源与污染控制模拟技术,E-mail:
Comparison of Structured and Unstructured Finite Difference Simulation of Groundwater Flow
Wen-hua DING , Yong-xiang ZHANG , Tong GUO, Rui-tao JIA
Affiliations
  • Faculty of Architecture, Civil and Transportation Engineering, Beijing University of Technology, Beijing 100124, China
出版时间: 2023-09-25 doi: 10.20040/j.cnki.1000-7709.2023.20222122
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选取合适、高效、准确的地下水流数值模型是进行数值模拟的重要基础。利用一个完整潜水井渗流算例的水位解析解和结构化传统模型、结构化加密模型、两种非结构化加密模型的水位数值解进行比较,对其拟合程度及误差进行分析。结果表明,4种模型数值模拟的准确度均较好,平均绝对误差均小于0.1,R2均大于0.98;相较于结构化传统模型,结构化加密模型准确度最好,非结构化四级加密模型次之,非结构化三级加密模型最差;非结构化四级加密模型模拟准确度提升虽稍逊于结构化加密模型,但使用网格数量减少了90%,计算效率提升,并弥补了结构化加密模型多点加密适用性差的缺点,是一种适用性强、高效、准确的地下水流数值模型。

数值模拟  /  地下水  /  非结构化模型  /  完整潜水井

The selection of a suitable, efficient and accurate numerical model for groundwater flow is an important basis for numerical simulation work. The analytical solution of water level of seepage calculations of fully penetrating well in a phreatic aquifer was compared with the numerical solution of water level of structured conventional model, structured encrypted model and two unstructured encrypted models to analyze the degree of fit and error. The results show that the accuracy of the numerical simulation of all four models is quite good, and the average absolute error is less than 0.1, R2 is greater than 0.98. Compared with the structured traditional model, the accuracy of the structured encryption model is the best, the unstructured 4-level encryption model is the second and the 3-level encryption model is the worst; The accuracy of the unstructured four-level encryption model is slightly worse than that of the structured encryption model, but the number of mesh is reduced by 90%. It is a highly applicable, efficient and accurate numerical model for groundwater flow, which improves the computational efficiency and makes up for the poor applicability of multi-point encryption of the structured encryption model.

numerical simulation  /  groundwater  /  unstructured model  /  fully penetrating well in a phreatic aquifer
丁文华, 张永祥, 郭彤, 贾瑞涛. 地下水流结构化与非结构化有限差分法模拟比较. 水电能源科学, 2023 , 41 (9) : 32 -35 . DOI: 10.20040/j.cnki.1000-7709.2023.20222122
Wen-hua DING, Yong-xiang ZHANG, Tong GUO, Rui-tao JIA. Comparison of Structured and Unstructured Finite Difference Simulation of Groundwater Flow[J]. Water Resources and Power, 2023 , 41 (9) : 32 -35 . DOI: 10.20040/j.cnki.1000-7709.2023.20222122
  • 国家重点研发计划(2016YFC0401404)
2023年第41卷第9期
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doi: 10.20040/j.cnki.1000-7709.2023.20222122
  • 接收时间:2022-10-13
  • 首发时间:2026-01-28
  • 出版时间:2023-09-25
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  • 收稿日期:2022-10-13
  • 修回日期:2022-11-30
基金
国家重点研发计划(2016YFC0401404)
作者信息
    北京工业大学城市建设学部,北京 100124

通讯作者:

张永祥(1962-),男,博士、教授、博导,研究方向为水资源与污染控制模拟技术,E-mail:
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2种不同金属材料的力学参数

Family
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Number of
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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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