{"title":"明渠比能在各种渠道收缩中的应用","authors":"R. Musa, Triffandy M. W., Amalia Rusaldy","doi":"10.37394/232011.2022.17.6","DOIUrl":null,"url":null,"abstract":"Planning of water structures such as dams, irrigation canals, and other water structures requires a description of these buildings' hydraulic flow phenomenon. Each flow condition, moderate, and after passing through each building has its characteristics or tendencies. The aim of the study was to analyze the flow characteristics through several channel constrictions (sudden, transition, and radius) and verify the relationship between the results of laboratory tests with other research results. Understanding the flow characteristics in a narrow channel can be used to consider the design of channel engineering, especially irrigation canals. The results of the analysis show that the flow of water through the constriction undergoes a specific energy change. The maximum specific energy occurs at the sudden constriction type of 0.1339 m. The predicted results correlated moderately with experimental data from this and other studies. The application of specific energy for channel narrowing with upstream Es = downstream Es with Q = 0.0025 m3/s, then the maximum downstream water level elevation occurs in the form of a sudden narrowing of 0.1200 m. This value deviates from the results of laboratory tests with an elevation of 0.1310 m by 8%. This is due to setting and measurement errors during laboratory tests.","PeriodicalId":53603,"journal":{"name":"WSEAS Transactions on Applied and Theoretical Mechanics","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2022-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Application of Specific Energy In Open Channels To Various Forms Of Channel Constriction\",\"authors\":\"R. Musa, Triffandy M. W., Amalia Rusaldy\",\"doi\":\"10.37394/232011.2022.17.6\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Planning of water structures such as dams, irrigation canals, and other water structures requires a description of these buildings' hydraulic flow phenomenon. Each flow condition, moderate, and after passing through each building has its characteristics or tendencies. The aim of the study was to analyze the flow characteristics through several channel constrictions (sudden, transition, and radius) and verify the relationship between the results of laboratory tests with other research results. Understanding the flow characteristics in a narrow channel can be used to consider the design of channel engineering, especially irrigation canals. The results of the analysis show that the flow of water through the constriction undergoes a specific energy change. The maximum specific energy occurs at the sudden constriction type of 0.1339 m. The predicted results correlated moderately with experimental data from this and other studies. The application of specific energy for channel narrowing with upstream Es = downstream Es with Q = 0.0025 m3/s, then the maximum downstream water level elevation occurs in the form of a sudden narrowing of 0.1200 m. This value deviates from the results of laboratory tests with an elevation of 0.1310 m by 8%. This is due to setting and measurement errors during laboratory tests.\",\"PeriodicalId\":53603,\"journal\":{\"name\":\"WSEAS Transactions on Applied and Theoretical Mechanics\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2022-03-26\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"WSEAS Transactions on Applied and Theoretical Mechanics\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.37394/232011.2022.17.6\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"Engineering\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"WSEAS Transactions on Applied and Theoretical Mechanics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.37394/232011.2022.17.6","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Engineering","Score":null,"Total":0}
Application of Specific Energy In Open Channels To Various Forms Of Channel Constriction
Planning of water structures such as dams, irrigation canals, and other water structures requires a description of these buildings' hydraulic flow phenomenon. Each flow condition, moderate, and after passing through each building has its characteristics or tendencies. The aim of the study was to analyze the flow characteristics through several channel constrictions (sudden, transition, and radius) and verify the relationship between the results of laboratory tests with other research results. Understanding the flow characteristics in a narrow channel can be used to consider the design of channel engineering, especially irrigation canals. The results of the analysis show that the flow of water through the constriction undergoes a specific energy change. The maximum specific energy occurs at the sudden constriction type of 0.1339 m. The predicted results correlated moderately with experimental data from this and other studies. The application of specific energy for channel narrowing with upstream Es = downstream Es with Q = 0.0025 m3/s, then the maximum downstream water level elevation occurs in the form of a sudden narrowing of 0.1200 m. This value deviates from the results of laboratory tests with an elevation of 0.1310 m by 8%. This is due to setting and measurement errors during laboratory tests.
期刊介绍:
WSEAS Transactions on Applied and Theoretical Mechanics publishes original research papers relating to computational and experimental mechanics. We aim to bring important work to a wide international audience and therefore only publish papers of exceptional scientific value that advance our understanding of these particular areas. The research presented must transcend the limits of case studies, while both experimental and theoretical studies are accepted. It is a multi-disciplinary journal and therefore its content mirrors the diverse interests and approaches of scholars involved with fluid-structure interaction, impact and multibody dynamics, nonlinear dynamics, structural dynamics and related areas. We also welcome scholarly contributions from officials with government agencies, international agencies, and non-governmental organizations.