一种基于多分辨率数据融合的二维浅水模型网格生成方法

IF 2.4 3区 环境科学与生态学 Q2 ENGINEERING, CIVIL
Yongyong Ma , Jingming Hou , Jie Chai , Tian Wang , Wei Liu , Bingyao Li , Nie Zhou , Lu Yang
{"title":"一种基于多分辨率数据融合的二维浅水模型网格生成方法","authors":"Yongyong Ma ,&nbsp;Jingming Hou ,&nbsp;Jie Chai ,&nbsp;Tian Wang ,&nbsp;Wei Liu ,&nbsp;Bingyao Li ,&nbsp;Nie Zhou ,&nbsp;Lu Yang","doi":"10.1016/j.jher.2022.10.001","DOIUrl":null,"url":null,"abstract":"<div><p><span>Aiming at resolving the grid problems caused by the inconsistent resolution requirements when simulating overland flows<span> using the 2D shallow water equations, a novel grid generation method based on multi-resolution data fusion is developed in this work. This method is able to not only reduce the computational burden associated with uniform structured grids but also ensure the simulation accuracy of the hydrodynamic model by reproducing the so-called small-scale effect. The efficiency of the method is assessed using different cases. Theoretical and laboratory cases demonstrate that fused non-uniform structured grids can reproduce hydrographs without appreciable accuracy losses. In addition, a high simulation accuracy (</span></span><em>NRMSE</em> ≤ 10.40 %, <em>R<sup>2</sup></em> ≥ 0.87) is achieved in the simulation of a real flood event. The performance of this method is very promising in terms of the large-scale flood simulation accuracy, and it significantly reduces the data requirements and computational burden with globally fine uniform grids.</p></div>","PeriodicalId":49303,"journal":{"name":"Journal of Hydro-environment Research","volume":null,"pages":null},"PeriodicalIF":2.4000,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"A novel grid generation method based on multi-resolution data fusion for 2D shallow water models\",\"authors\":\"Yongyong Ma ,&nbsp;Jingming Hou ,&nbsp;Jie Chai ,&nbsp;Tian Wang ,&nbsp;Wei Liu ,&nbsp;Bingyao Li ,&nbsp;Nie Zhou ,&nbsp;Lu Yang\",\"doi\":\"10.1016/j.jher.2022.10.001\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p><span>Aiming at resolving the grid problems caused by the inconsistent resolution requirements when simulating overland flows<span> using the 2D shallow water equations, a novel grid generation method based on multi-resolution data fusion is developed in this work. This method is able to not only reduce the computational burden associated with uniform structured grids but also ensure the simulation accuracy of the hydrodynamic model by reproducing the so-called small-scale effect. The efficiency of the method is assessed using different cases. Theoretical and laboratory cases demonstrate that fused non-uniform structured grids can reproduce hydrographs without appreciable accuracy losses. In addition, a high simulation accuracy (</span></span><em>NRMSE</em> ≤ 10.40 %, <em>R<sup>2</sup></em> ≥ 0.87) is achieved in the simulation of a real flood event. The performance of this method is very promising in terms of the large-scale flood simulation accuracy, and it significantly reduces the data requirements and computational burden with globally fine uniform grids.</p></div>\",\"PeriodicalId\":49303,\"journal\":{\"name\":\"Journal of Hydro-environment Research\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.4000,\"publicationDate\":\"2022-11-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Hydro-environment Research\",\"FirstCategoryId\":\"93\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1570644322000582\",\"RegionNum\":3,\"RegionCategory\":\"环境科学与生态学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ENGINEERING, CIVIL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Hydro-environment Research","FirstCategoryId":"93","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1570644322000582","RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, CIVIL","Score":null,"Total":0}
引用次数: 1

摘要

针对利用二维浅水方程模拟坡面流时由于分辨率要求不一致而导致的网格问题,提出了一种基于多分辨率数据融合的网格生成方法。该方法不仅减少了均匀结构网格的计算量,而且通过再现所谓的小尺度效应,保证了水动力模型的模拟精度。通过不同的实例对该方法的有效性进行了评价。理论和实验实例表明,融合的非均匀结构网格可以在没有明显精度损失的情况下再现水文曲线。在一次真实洪水事件的模拟中,达到了较高的模拟精度(NRMSE≤10.40%,R2≥0.87)。该方法在大尺度洪水模拟精度方面表现良好,在全局精细均匀网格下显著降低了数据要求和计算负担。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

A novel grid generation method based on multi-resolution data fusion for 2D shallow water models

A novel grid generation method based on multi-resolution data fusion for 2D shallow water models

Aiming at resolving the grid problems caused by the inconsistent resolution requirements when simulating overland flows using the 2D shallow water equations, a novel grid generation method based on multi-resolution data fusion is developed in this work. This method is able to not only reduce the computational burden associated with uniform structured grids but also ensure the simulation accuracy of the hydrodynamic model by reproducing the so-called small-scale effect. The efficiency of the method is assessed using different cases. Theoretical and laboratory cases demonstrate that fused non-uniform structured grids can reproduce hydrographs without appreciable accuracy losses. In addition, a high simulation accuracy (NRMSE ≤ 10.40 %, R2 ≥ 0.87) is achieved in the simulation of a real flood event. The performance of this method is very promising in terms of the large-scale flood simulation accuracy, and it significantly reduces the data requirements and computational burden with globally fine uniform grids.

求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
Journal of Hydro-environment Research
Journal of Hydro-environment Research ENGINEERING, CIVIL-ENVIRONMENTAL SCIENCES
CiteScore
5.80
自引率
0.00%
发文量
34
审稿时长
98 days
期刊介绍: The journal aims to provide an international platform for the dissemination of research and engineering applications related to water and hydraulic problems in the Asia-Pacific region. The journal provides a wide distribution at affordable subscription rate, as well as a rapid reviewing and publication time. The journal particularly encourages papers from young researchers. Papers that require extensive language editing, qualify for editorial assistance with American Journal Experts, a Language Editing Company that Elsevier recommends. Authors submitting to this journal are entitled to a 10% discount.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信